Analysis

  • max time kernel
    146s
  • max time network
    156s
  • platform
    android_x64
  • resource
    android-x64-arm64-20240624-en
  • resource tags

    androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240624-enlocale:en-usos:android-11-x64system
  • submitted
    09-12-2024 22:13

General

  • Target

    80f29e78847d2b9d5dca2667884694147253bb52e609155ae668ef153fa711eb.apk

  • Size

    961KB

  • MD5

    cdfddd96ec4dbecb6913422a3fca3e9d

  • SHA1

    21d318fd2e242712135fe283bd5344c36fcdfa68

  • SHA256

    80f29e78847d2b9d5dca2667884694147253bb52e609155ae668ef153fa711eb

  • SHA512

    107079d339ca7f65f513746d36ba375ef9be93ffbe53a01dc0c896e36c43a66e437bcb378a58781c79cdc309d17502af9501f69765b92a318941ad6cd9b44d67

  • SSDEEP

    24576:9gSLlUELdYh2YlGIeCrGTf4jN1yR5xiho3qtaJyL3:9gS4GTwjN1eVqtGyL3

Malware Config

Extracted

Family

ermac

C2

http://ahmet10.duckdns.org:3434

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

  • Ermac family
  • Ermac2 payload 1 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

  • Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

    Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
  • Acquires the wake lock 1 IoCs
  • Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs

    Application may abuse the framework's foreground service to continue running in the foreground.

  • Performs UI accessibility actions on behalf of the user 1 TTPs 11 IoCs

    Application may abuse the accessibility service to prevent their removal.

  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
  • Reads information about phone network operator. 1 TTPs
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • Com.build.bekemal.apk
    1⤵
    • Removes its main activity from the application launcher
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Obtains sensitive information copied to the device clipboard
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • 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).
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4459

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/Com.build.bekemal.apk/app_apkprotector_dex/classes-v1.bin

    Filesize

    547KB

    MD5

    60b930a8b3a464c74ff5dfdb649d5cc0

    SHA1

    1cb9addef2b45ce773de05cd12912456c55603a9

    SHA256

    80d458cbf1e6871d86853c47927b11ea241707aaaf9c14e29f73e6ec1071e129

    SHA512

    75e2ac99d68439ed517f2c3437483bece1244c0f8c4bfa5d7265a1fdb788911d5d64ff453a5bd1369bd18a5ee0c32b24dbdeb735c562720f339ae2fa8a44295a