General

  • Target

    912c4c52e1d61021a098d93e4c8fcfd440e368c7ed60cc6feb180a993370412f

  • Size

    4.4MB

  • Sample

    231220-jrcw6sacek

  • MD5

    3711fd47766af210965dfd48329385cd

  • SHA1

    a7cce8953ef22f62dc8f0948b90ef038b8c6a777

  • SHA256

    912c4c52e1d61021a098d93e4c8fcfd440e368c7ed60cc6feb180a993370412f

  • SHA512

    c73bc4830f21d40483ccc545068c5406b01af55ef1fd2535450b1d2f80009505d663b6d1f5750b1b43c942970afb61e5f45afc9d364aa53d95d5c75b612a962a

  • SSDEEP

    98304:P9tO+8QPTmJJvqhfSYF4f9yLtvp0DtfJLdvP7lcNuBH3SMWdu:PmECmlSYFOAF6fJxxchMWdu

Malware Config

Extracted

Family

ermac

C2

http://194.26.29.28:3434

AES_key
AES_key

Targets

    • Target

      912c4c52e1d61021a098d93e4c8fcfd440e368c7ed60cc6feb180a993370412f

    • Size

      4.4MB

    • MD5

      3711fd47766af210965dfd48329385cd

    • SHA1

      a7cce8953ef22f62dc8f0948b90ef038b8c6a777

    • SHA256

      912c4c52e1d61021a098d93e4c8fcfd440e368c7ed60cc6feb180a993370412f

    • SHA512

      c73bc4830f21d40483ccc545068c5406b01af55ef1fd2535450b1d2f80009505d663b6d1f5750b1b43c942970afb61e5f45afc9d364aa53d95d5c75b612a962a

    • SSDEEP

      98304:P9tO+8QPTmJJvqhfSYF4f9yLtvp0DtfJLdvP7lcNuBH3SMWdu:PmECmlSYFOAF6fJxxchMWdu

    • Ermac

      An Android banking trojan first seen in July 2021.

    • Ermac2 payload

    • Makes use of the framework's Accessibility service

      Retrieves information displayed on the phone screen using AccessibilityService.

    • Removes its main activity from the application launcher

    • Loads dropped Dex/Jar

      Runs executable file dropped to the device during analysis.

    • Acquires the wake lock

    • 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 Matrix

Tasks