General

  • Target

    31ee863aed7dcda18cf0f88faa562433fd60693507d086f5a87b01b27c883ca0.bin

  • Size

    961KB

  • Sample

    241206-1yt8gawmer

  • MD5

    4b8f84e42ca21b0edd5b23636e264852

  • SHA1

    bda306ce2bf7986f5948ae570971c32d7ca4287a

  • SHA256

    31ee863aed7dcda18cf0f88faa562433fd60693507d086f5a87b01b27c883ca0

  • SHA512

    3d8d3b996ff41dc1110f55077f57bd3281564fe7eea839be8aade08eed6803939bcc77d954e235b78d0b45eda791e25532e921ac781b5a6298fd7b6c413a2491

  • SSDEEP

    24576:UgmtKaQ+PbJAHx7ao0LzY0ky/UBC6B9d6PxYwqtaJyL5:Ugm00Lqy/UsmADqtGyL5

Malware Config

Extracted

Family

ermac

C2

http://91.202.233.10:3434

AES_key
AES_key

Targets

    • Target

      31ee863aed7dcda18cf0f88faa562433fd60693507d086f5a87b01b27c883ca0.bin

    • Size

      961KB

    • MD5

      4b8f84e42ca21b0edd5b23636e264852

    • SHA1

      bda306ce2bf7986f5948ae570971c32d7ca4287a

    • SHA256

      31ee863aed7dcda18cf0f88faa562433fd60693507d086f5a87b01b27c883ca0

    • SHA512

      3d8d3b996ff41dc1110f55077f57bd3281564fe7eea839be8aade08eed6803939bcc77d954e235b78d0b45eda791e25532e921ac781b5a6298fd7b6c413a2491

    • SSDEEP

      24576:UgmtKaQ+PbJAHx7ao0LzY0ky/UBC6B9d6PxYwqtaJyL5:Ugm00Lqy/UsmADqtGyL5

    • Ermac

      An Android banking trojan first seen in July 2021.

    • Ermac family

    • Ermac2 payload

    • Removes its main activity from the application launcher

    • Loads dropped Dex/Jar

      Runs executable file dropped to the device during analysis.

    • Makes use of the framework's Accessibility service

      Retrieves information displayed on the phone screen using AccessibilityService.

    • Obtains sensitive information copied to the device clipboard

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

    • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

    • Queries the phone number (MSISDN for GSM devices)

    • Acquires the wake lock

    • Makes use of the framework's foreground persistence service

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

    • Performs UI accessibility actions on behalf of the user

      Application may abuse the accessibility service to prevent their removal.

    • Queries the mobile country code (MCC)

    • Queries the unique device ID (IMEI, MEID, IMSI)

    • Requests disabling of battery optimizations (often used to enable hiding in the background).

MITRE ATT&CK Mobile v15

Tasks