Analysis

  • max time kernel
    179s
  • max time network
    185s
  • platform
    android_x86
  • resource
    android-x86-arm-20240624-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
  • submitted
    02/08/2024, 22:10

General

  • Target
    8feb5aef2953c68511777baf048319dbbbc83277ed8e5f296b39908c89ad8582.apk
  • Size 3.7MB
  • Sample240802-13ch8axcqh
  • SHA256 8feb5aef2953c68511777baf048319dbbbc83277ed8e5f296b39908c89ad8582
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • TeaBot

    TeaBot is an android banker first seen in January 2021.

  • TeaBot payload 2 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 3 IoCs

    Runs executable file dropped to the device during analysis.

  • Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Acquires the wake lock 1 IoCs
  • Performs UI accessibility actions on behalf of the user 1 TTPs 7 IoCs

    Application may abuse the accessibility service to prevent their removal.

  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • cash.roast.must
    1⤵
    • Removes its main activity from the application launcher
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Acquires the wake lock
    • Performs UI accessibility actions on behalf of the user
    • Queries the mobile country code (MCC)
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Checks CPU information
    • Checks memory information
    PID:4247
    • /system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/cash.roast.must/app_DynamicOptDex/Hklu.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/cash.roast.must/app_DynamicOptDex/oat/x86/Hklu.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4273

Network

        MITRE ATT&CK Mobile v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Hklu.json

        • Path /data/data/cash.roast.must/app_DynamicOptDex/Hklu.json
        • Size 1.2MB
        • SHA256 1c5b840d31d59a1180dba6cc58e97b554ceb53a90f8ee84d079cf7d7af436ed6
        • MD5 SHA1 SHA512 SSDEEP

        Hklu.json

        • Path /data/data/cash.roast.must/app_DynamicOptDex/Hklu.json
        • Size 1.2MB
        • SHA256 2bec5f2ee3e41369214c43d05be4ac1a2ead2bc2b6c91cef275ad3c709f95350
        • MD5 SHA1 SHA512 SSDEEP

        Hklu.json.cur.prof

        • Path /data/data/cash.roast.must/app_DynamicOptDex/oat/Hklu.json.cur.prof
        • Size 1KB
        • SHA256 5669182363aeaf6ccae9c8a1159605e15197fe03980872128e3c29f773b348a1
        • MD5 SHA1 SHA512

        Hklu.json

        • Path /data/user/0/cash.roast.must/app_DynamicOptDex/Hklu.json
        • Size 1.2MB
        • SHA256 ac25087be7544139a03b468e5e49ec241119f528f16d8555238100b485a10db0
        • MD5 SHA1 SHA512 SSDEEP