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General

  • Target

    8c7bd84eff98ef5ff2d30ea62c25b89c82f57071093830c42fabd890c01ba4a4.bin

  • Size

    4.4MB

  • Sample

    250105-1xjekszjhp

  • MD5

    3fdeb4ae869e32606d9427254f28b3ec

  • SHA1

    6330e9219d8d332ef262275ec0a1080c3c5c9e29

  • SHA256

    8c7bd84eff98ef5ff2d30ea62c25b89c82f57071093830c42fabd890c01ba4a4

  • SHA512

    7e3e3a0e796237314efc8d04359e1cbc3682b97b54d411f6b1ac44e98340f63e6187e13f9766c50d20916f74236c880bd8fa4caccf11bc884b0d325e3e68a64d

  • SSDEEP

    98304:pO0L2CmOy8sZHbXmBcHsrVGrz5Mk6gdwQmHWu9jR:k0ilOy8sZHbXmosr25ZXovT

Malware Config

Extracted

Family

ermac

C2

http://154.216.20.225:3434

DES_key
AES_key
AES_key

Targets

    • Target

      8c7bd84eff98ef5ff2d30ea62c25b89c82f57071093830c42fabd890c01ba4a4.bin

    • Size

      4.4MB

    • MD5

      3fdeb4ae869e32606d9427254f28b3ec

    • SHA1

      6330e9219d8d332ef262275ec0a1080c3c5c9e29

    • SHA256

      8c7bd84eff98ef5ff2d30ea62c25b89c82f57071093830c42fabd890c01ba4a4

    • SHA512

      7e3e3a0e796237314efc8d04359e1cbc3682b97b54d411f6b1ac44e98340f63e6187e13f9766c50d20916f74236c880bd8fa4caccf11bc884b0d325e3e68a64d

    • SSDEEP

      98304:pO0L2CmOy8sZHbXmBcHsrVGrz5Mk6gdwQmHWu9jR:k0ilOy8sZHbXmosr25ZXovT

    • 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