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Threat

com.humble.SlayTheSpire

TECHBIGS | Slay the Spire

Analyzed on 2022-06-17T18:56:43.126624

7

permissions

2

activities

1

services

1

receivers

2

domains

File sums

MD5 794d059177e73e8fb6fad24a7dd5460c
SHA1 e0282a59a5ba11907dd01ab36963995c4165a52f
SHA256 37294159835c848c1ff9a74e3748768755669649a2a579a438c1137c661fc268
Size 23.57MB

APKiD

Information computed with APKiD.

/tmp/tmpwbw7vkw3!classes.dex
manipulator
  • dexmerge
compiler
  • dx (possible dexmerge)

SSdeep

Information computed with ssdeep.

APK file 393216:xWO2Z3SuVuuSsR+/cc1gvd/j+No8vCZTzYPyLJkg+oyHuy1IaSEXXbsnFbqxJyrG:xWOHsQsskgcVj+1QTz4y9DOOzSnuqny6
Manifest 96:5mVcgScijA1lDORemPWVyT0OAT+UT+MWjFz0r3ejlo6OdevPrHt:EGgSNjiRmP0yT0…
classes.dex 49152:WCuraeB+8JfhfV8ASbK62NfXZeslEVTzp6uPx:DuDCK62J6PPx

Dexofuzzy

Information computed with Dexofuzzy.

APK file 1536:uJSy8MX6kXCpeaf39LRt9KUYO9tmHunM3IoBT4ku4rSz1cIgHndWTqZwswEoqNy2…
classes.dex 1536:uJSy8MX6kXCpeaf39LRt9KUYO9tmHunM3IoBT4ku4rSz1cIgHndWTqZwswEoqNy2…

APK details

Information computed with AndroGuard and Pithus.

Package com.humble.SlayTheSpire
App name TECHBIGS | Slay the Spire
Version name 2.2.8
Version code 14
SDK 22 - 29
UAID 74584d6f7c4561863783cd43be01a3c29ba2da81
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.

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.

Main Activity

Information computed with AndroGuard.

android.app.NativeActivity

Activities

Information computed with AndroGuard.

android.app.NativeActivity
com.humble.SlayTheSpire.DownloaderActivity

Receivers

Information computed with AndroGuard.

com.humble.SlayTheSpire.SampleAlarmReceiver

Services

Information computed with AndroGuard.

com.humble.SlayTheSpire.OBBDownloaderService

Sample timeline

Certificate valid not before Feb. 29, 2008, 1:33 a.m.
Oldest file found in APK Feb. 29, 2008, 9:33 a.m.
Latest file found in APK Feb. 29, 2008, 9:33 a.m.
First submission on VT June 7, 2021, 7:13 a.m.
Last submission on VT March 25, 2022, 5:20 p.m.
Upload on Pithus June 17, 2022, 6:56 p.m.
Certificate valid not after July 17, 2035, 1:33 a.m.

NIAP analysis

Information computed with MobSF.

FCS_RBG_EXT.1.1 The application invoke platform-provided 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 implement functionality to encrypt sensitive data 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 encrypt some transmitted data with HTTPS/TLS/SSH between itself and another trusted IT product.
Protection of Data in Transit
FCS_RBG_EXT.2.1
FCS_RBG_EXT.2.2
The application perform all deterministic random bit generation (DRBG) services in accordance with NIST Special Publication 800-90A using Hash_DRBG. The deterministic RBG is seeded by an entropy source that accumulates entropy from a platform-based DRBG and a software-based noise source, with a minimum of 256 bits of entropy at least equal to the greatest security strength (according to NIST SP 800-57) of the keys and hashes that it will generate.
Random Bit Generation from Application
FCS_CKM.1.1(3)
FCS_CKM.1.2(3)
A password/passphrase shall perform [Password-based Key Derivation Functions] in accordance with a specified cryptographic algorithm..
Password Conditioning

Code analysis

Information computed with MobSF.

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:
 com/humble/SlayTheSpire/Permissions.java
com/SlayTheSpire/DownloaderActivity.java
com/SlayTheSpire/Permissions.java
com/humble/SlayTheSpire/DownloaderActivity.java
Pygal United States: 200

Map computed by Pithus.

Domains analysis

Information computed with MobSF.

US hyi3lwrhf5.execute-api.us-east-1.amazonaws.com 18.215.220.182
US www.googleapis.com 142.250.181.234

URL analysis

Information computed with MobSF.

https://hyi3lwrhf5.execute-api.us-east-1.amazonaws.com/prod/time
Defined in com/humble/SlayTheSpire/TimeRequest.java
https://hyi3lwrhf5.execute-api.us-east-1.amazonaws.com/prod/time
Defined in com/SlayTheSpire/TimeRequest.java
https://www.googleapis.com/auth/drive.appdata
Defined in lib/armeabi-v7a/libSpire_ANDROID.so

Permissions analysis

Information computed with MobSF.

High android.permission.WRITE_EXTERNAL_STORAGE read/modify/delete external storage contents
Allows an application to write to external storage.
High android.permission.READ_EXTERNAL_STORAGE read external storage contents
Allows an application to read from external storage.
Low android.permission.INTERNET full Internet access
Allows an application to create network sockets.
Low android.permission.WAKE_LOCK prevent phone from sleeping
Allows an application to prevent the phone from going to sleep.
Low android.permission.ACCESS_NETWORK_STATE view network status
Allows an application to view the status of all networks.
Low android.permission.ACCESS_WIFI_STATE view Wi-Fi status
Allows an application to view the information about the status of Wi-Fi.
com.android.vending.CHECK_LICENSE Unknown permission
Unknown permission from android reference

Threat analysis

Information computed with Quark-Engine.

Confidence:
100%
Find a method from given class name, usually for reflection
Confidence:
100%
Method reflection
Confidence:
100%
Load class from given class name
Confidence:
100%
Retrieve data from broadcast
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%
Method reflection
Confidence:
100%
Query data from URI (SMS, CALLLOGS)
Confidence:
100%
Initialize class object dynamically
Confidence:
100%
Get specific method from other Dex files
Confidence:
80%
Read file and put it into a stream
Confidence:
80%
Get declared method from given method name
Confidence:
80%
Get resource file from res/raw directory

Behavior analysis

Information computed with MobSF.

Inter process communication
       com/SlayTheSpire/DownloaderStarter.java
com/SlayTheSpire/DownloaderActivity.java
com/humble/SlayTheSpire/SampleAlarmReceiver.java
com/SlayTheSpire/SampleAlarmReceiver.java
com/humble/SlayTheSpire/DownloaderStarter.java
com/humble/SlayTheSpire/DownloaderActivity.java
Starting activity
       com/SlayTheSpire/DownloaderStarter.java
com/humble/SlayTheSpire/DownloaderStarter.java

Control flow graphs analysis

Information computed by Pithus.

The application probably creates an accessibility service

The application probably listens accessibility events