Malicious
33
/65

Threat

skrud999.quddyd99.view

CJ 대한통운 택배

Analyzed on 2022-08-18T13:05:08.500369

9

permissions

2

activities

1

services

3

receivers

0

domains

File sums

MD5 ec682ae98d8688c6c336542fd16d5204
SHA1 09f1e4bd21d26f91a8ddfb16b679df2066aea0ce
SHA256 80cd7786fa42a257dcaddb44823a97ff5610614d345e5f52af64da0ec3e62835
Size 0.04MB

APKiD

Information computed with APKiD.

/tmp/tmptbee_rt0!classes.dex
compiler
  • dexlib 1.x

SSdeep

Information computed with ssdeep.

APK file 768:TH28q8PjRESIGsWGCvgyGJFNjMo194Y2MZhdD2/ba3d42bKC//nSTv:g48GsWFv4Xh194lIX2G3d42OC/Pw
Manifest 96:LGh1PEgScycyUtswakaS1s7CvTs4rwNfcQ6Y0FOiDfOkN4pKjAsH+c1:ihKgSAyUts…
classes.dex 768:JXX+KWke3inXVm++zlUVTVxzA6lqlUDXkpDQZnE10IRAN11UNYHTp4OYRYQ:ZXs53…

Dexofuzzy

Information computed with Dexofuzzy.

APK file 48:U7uPrEMc0HZj0/zeGnD2KmUCNc2FuGgy9fY:UHMHZ4/zeGD2+Cap3y9Q
classes.dex 48:U7uPrEMc0HZj0/zeGnD2KmUCNc2FuGgy9fY:UHMHZ4/zeGD2+Cap3y9Q

APK details

Information computed with AndroGuard and Pithus.

Package skrud999.quddyd99.view
App name CJ 대한통운 택배
Version name 1.0
Version code 1
SDK 8 - 19
UAID 55ca5c87bc52ce95d8627c0a7058006ce1a26fc1
Signature Signature V1
Frosting Not frosted

Certificate details

Information computed with AndroGuard.

MD5 e89b158e4bcf988ebd09eb83f5378e87
SHA1 61ed377e85d386a8dfee6b864bd85b0bfaa5af81
SHA256 a40da80a59d170caa950cf15c18c454d47a39b26989d8b640ecd745ba71bf5dc
Issuer Email Address: android@android.com, Common Name: Android, Organizational Unit: Android, Organization: Android, Locality: Mountain View, State/Province: California, Country: US
Not before 2008-02-29T01:33:46+00:00
Not after 2035-07-17T01:33:46+00:00

Manifest analysis

Information computed with MobSF.

High Debug Enabled For App[android:debuggable=true]
Debugging was enabled on the app which makes it easier for reverse engineers to hook a debugger to it. This allows dumping a stack trace and accessing debugging helper classes.
Medium Application Data can be Backed up[android:allowBackup] flag is missing.
The flag [android:allowBackup] should be set to false. By default it is set to true and allows anyone to backup your application data via adb. It allows users who have enabled USB debugging to copy application data off of the device.
High Broadcast Receiver (.DeviceAdmin) is Protected by a permission, but the protection level of the permission should be checked.
Permission: android.permission.BIND_DEVICE_ADMIN [android:exported=true]
A Broadcast Receiver is found to be shared with other apps on the device therefore leaving it accessible to any other application on the device. It is protected by a permission which is not defined in the analysed application. As a result, the protection level of the permission should be checked where it is defined. If it is set to normal or dangerous, a malicious application can request and obtain the permission and interact with the component. If it is set to signature, only applications signed with the same certificate can obtain the permission.
High Broadcast Receiver (.SMSBroadcastReceiver) is not Protected.An intent-filter exists.
A Broadcast Receiver is found to be shared with other apps on the device therefore leaving it accessible to any other application on the device. The presence of intent-filter indicates that the Broadcast Receiver is explicitly exported.
High Activity (.RegDPMActivity) is not Protected.An intent-filter exists.
An Activity is found to be shared with other apps on the device therefore leaving it accessible to any other application on the device. The presence of intent-filter indicates that the Activity is explicitly exported.
High Broadcast Receiver (CallStateReceiver) is not Protected.An intent-filter exists.
A Broadcast Receiver is found to be shared with other apps on the device therefore leaving it accessible to any other application on the device. The presence of intent-filter indicates that the Broadcast Receiver is explicitly exported.
Medium High Intent Priority (2147483647)[android:priority]
By setting an intent priority higher than another intent, the app effectively overrides other requests.

Main Activity

Information computed with AndroGuard.

skrud999.quddyd99.view.MainActivity

Activities

Information computed with AndroGuard.

skrud999.quddyd99.view.MainActivity
skrud999.quddyd99.view.RegDPMActivity

Receivers

Information computed with AndroGuard.

skrud999.quddyd99.view.DeviceAdmin
skrud999.quddyd99.view.SMSBroadcastReceiver
skrud999.quddyd99.view.CallStateReceiver

Services

Information computed with AndroGuard.

skrud999.quddyd99.view.PreodicService

Sample timeline

Certificate valid not before Feb. 29, 2008, 1:33 a.m.
Oldest file found in APK April 18, 2018, 3:37 p.m.
Latest file found in APK April 18, 2018, 3:37 p.m.
First submission on VT April 20, 2018, 2:23 a.m.
Last submission on VT April 21, 2018, 2:26 a.m.
Upload on Pithus Aug. 18, 2022, 1:05 p.m.
Certificate valid not after July 17, 2035, 1:33 a.m.

VirusTotal

Score 33/65
Report https://www.virustotal.com/gui/file/80cd7786fa42a257dcaddb44823a97ff5610614d345e5f52af64da0ec3e62835/detection

Most Popular AV Detections

Provided by VirusTotal

Threat name: smforw Identified 11 times
Threat name: smsspy Identified 4 times
Threat name: artemis Identified 2 times

NIAP analysis

Information computed with MobSF.

FCS_RBG_EXT.1.1 The application use no DRBG functionality for its cryptographic operations.
Random Bit Generation Services
FCS_STO_EXT.1.1 The application does not store any credentials to non-volatile memory.
Storage of Credentials
FCS_CKM_EXT.1.1 The application generate no asymmetric cryptographic keys.
Cryptographic Key Generation Services
FDP_DEC_EXT.1.1 The application has access to ['network connectivity'].
Access to Platform Resources
FDP_DEC_EXT.1.2 The application has access to no sensitive information repositories.
Access to Platform Resources
FDP_NET_EXT.1.1 The application has user/application initiated network communications.
Network Communications
FDP_DAR_EXT.1.1 The application does not encrypt files in non-volatile memory.
Encryption Of Sensitive Application Data
FMT_MEC_EXT.1.1 The application invoke the mechanisms recommended by the platform vendor for storing and setting configuration options.
Supported Configuration Mechanism
FTP_DIT_EXT.1.1 The application does not encrypt any data in traffic or does not transmit any data between itself and another trusted IT product.
Protection of Data in Transit

Code analysis

Information computed with MobSF.

Medium
CVSS:5.9
App uses SQLite Database and execute raw SQL query. Untrusted user input in raw SQL queries can cause SQL Injection. Also sensitive information should be encrypted and written to the database.
CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
M7: Client Code Quality
Files:
 skrud999/quddyd99/view/Contacts.java
Low
CVSS:7.5
The App logs information. Sensitive information should never be logged.
MASVS: MSTG-STORAGE-3
CWE-532 Insertion of Sensitive Information into Log File
Files:
 skrud999/quddyd99/view/CallStateReceiver.java
skrud999/quddyd99/view/SMSBroadcastReceiver.java
skrud999/quddyd99/view/CallStateListner.java
skrud999/quddyd99/view/PreodicService.java

Permissions analysis

Information computed with MobSF.

High android.permission.READ_PHONE_STATE read phone state and identity
Allows the application to access the phone features of the device. An application with this permission can determine the phone number and serial number of this phone, whether a call is active, the number that call is connected to and so on.
High android.permission.READ_SMS read SMS or MMS
Allows application to read SMS messages stored on your phone or SIM card. Malicious applications may read your confidential messages.
High android.permission.SEND_SMS send SMS messages
Allows application to send SMS messages. Malicious applications may cost you money by sending messages without your confirmation.
High android.permission.RECEIVE_SMS receive SMS
Allows application to receive and process SMS messages. Malicious applications may monitor your messages or delete them without showing them to you.
High android.permission.WRITE_SETTINGS modify global system settings
Allows an application to modify the system's settings data. Malicious applications can corrupt your system's configuration.
High android.permission.CALL_PHONE directly call phone numbers
Allows the application to call phone numbers without your intervention. Malicious applications may cause unexpected calls on your phone bill. Note that this does not allow the application to call emergency numbers.
Low android.permission.INTERNET full Internet access
Allows an application to create network sockets.
Low android.permission.RECEIVE_BOOT_COMPLETED automatically start at boot
Allows an application to start itself as soon as the system has finished booting. This can make it take longer to start the phone and allow the application to slow down the overall phone by always running.
Medium android.permission.MODIFY_PHONE_STATE modify phone status
Allows the application to control the phone features of the device. An application with this permission can switch networks, turn the phone radio on and off and the like, without ever notifying you.

Threat analysis

Information computed with Quark-Engine.

Confidence:
100%
Append the sender's address to the string
Confidence:
100%
Get the network operator name
Confidence:
100%
Read sensitive data(SMS, CALLLOG, etc)
Confidence:
100%
Implicit intent(view a web page, make a phone call, etc.) via setData
Confidence:
100%
Monitor the broadcast action events (BOOT_COMPLETED)
Confidence:
100%
Query the ICCID number
Confidence:
100%
Query the IMEI number
Confidence:
100%
Method reflection
Confidence:
100%
Query the phone number
Confidence:
100%
Read the input stream from given URL
Confidence:
80%
Connect to a URL and receive input stream from the server
Confidence:
80%
Connect to a URL and read data from it
Confidence:
80%
Connect to a URL and get the response code
Confidence:
80%
Connect to the remote server through the given URL
Confidence:
80%
Connect to a URL and set request method

Behavior analysis

Information computed with MobSF.

Get phone number
       skrud999/quddyd99/view/Util.java
Get sim serial number
       skrud999/quddyd99/view/Util.java
Get system service
       skrud999/quddyd99/view/Util.java
skrud999/quddyd99/view/CallStateReceiver.java
skrud999/quddyd99/view/CallStateListner.java
skrud999/quddyd99/net/HttpUtils.java
skrud999/quddyd99/view/RegDPMActivity.java
Http connection
       skrud999/quddyd99/net/HttpUtils.java
Inter process communication
       skrud999/quddyd99/view/Util.java
skrud999/quddyd99/view/CallStateReceiver.java
skrud999/quddyd99/view/SMSBroadcastReceiver.java
skrud999/quddyd99/view/MainActivity.java
skrud999/quddyd99/view/PreodicService.java
skrud999/quddyd99/view/DeviceAdmin.java
skrud999/quddyd99/view/RegDPMActivity.java
Java reflection
       skrud999/quddyd99/view/CallStateReceiver.java
skrud999/quddyd99/view/CallStateListner.java
Local file i/o operations
       skrud999/quddyd99/view/CallStateReceiver.java
skrud999/quddyd99/view/Contacts.java
skrud999/quddyd99/view/SMSBroadcastReceiver.java
skrud999/quddyd99/view/CallStateListner.java
skrud999/quddyd99/view/MainActivity.java
skrud999/quddyd99/view/PreodicService.java
skrud999/quddyd99/view/DeviceAdmin.java
Query database of sms, contacts etc
       skrud999/quddyd99/view/Contacts.java
Sending broadcast
       skrud999/quddyd99/view/Util.java
Starting activity
       skrud999/quddyd99/view/MainActivity.java
skrud999/quddyd99/view/DeviceAdmin.java
skrud999/quddyd99/view/RegDPMActivity.java
Starting service
       skrud999/quddyd99/view/MainActivity.java

Control flow graphs analysis

Information computed by Pithus.

The application probably gets different information regarding the telephony capabilities

The application probably gets the IMEI of the phone

The application probably gets the serial number of the SIM card

The application probably gets the phone number associated to the SIM card

The application probably gets the network connections information

The application probably sends data over HTTP/S