General

  • Target

    e998904d91f0bd3f2527270a734602a81ef08301bd5199a030fa230ede73888a.bin

  • Size

    4.1MB

  • Sample

    241229-1wslvsxqhw

  • MD5

    26cf8c3c90cec4ce06904240e65226c4

  • SHA1

    433b70dddce7190a6c89a29a3932cbb4194686d9

  • SHA256

    e998904d91f0bd3f2527270a734602a81ef08301bd5199a030fa230ede73888a

  • SHA512

    a4510cf2e0142fb311c67f4c675fd2003fef9a17472d07c6656d3db8bd63d68d8646b902232c4776132f8558acf35053b43f154ab6431709779a5ce5444bbc9e

  • SSDEEP

    98304:6xOxpM9fmwjt8KCSOTom+V8ljB/hzGU6YZIDq13ojwgT0fRq:Qvfmwjt8KCSOTV+KVq/JDq14Ec0M

Malware Config

Extracted

Family

ermac

C2

http://154.216.20.225:3434

DES_key
AES_key
AES_key

Targets

    • Target

      e998904d91f0bd3f2527270a734602a81ef08301bd5199a030fa230ede73888a.bin

    • Size

      4.1MB

    • MD5

      26cf8c3c90cec4ce06904240e65226c4

    • SHA1

      433b70dddce7190a6c89a29a3932cbb4194686d9

    • SHA256

      e998904d91f0bd3f2527270a734602a81ef08301bd5199a030fa230ede73888a

    • SHA512

      a4510cf2e0142fb311c67f4c675fd2003fef9a17472d07c6656d3db8bd63d68d8646b902232c4776132f8558acf35053b43f154ab6431709779a5ce5444bbc9e

    • SSDEEP

      98304:6xOxpM9fmwjt8KCSOTom+V8ljB/hzGU6YZIDq13ojwgT0fRq:Qvfmwjt8KCSOTV+KVq/JDq14Ec0M

    • 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)

    • Reads information about phone network operator.

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

MITRE ATT&CK Mobile v15

Tasks