General

  • Target

    d8a7bc4d3d900e901fafa5f3b781a94cedca930fd34b120497c0521847387398.bin

  • Size

    3.8MB

  • Sample

    241021-1yywnayhnb

  • MD5

    533e38ae9ee490c9a7009eb2bdc7db91

  • SHA1

    2b3def93f7795396a4e5c05c7402f252df49092e

  • SHA256

    d8a7bc4d3d900e901fafa5f3b781a94cedca930fd34b120497c0521847387398

  • SHA512

    456706099a29f7c819c1d7f3d1e2ffb8391fc08c199bc634725023baad1ab79a5447d7224ef667d6f3f164f579d9d0be0fc89b8847ca30f332e67ac2c0d73fc3

  • SSDEEP

    98304:Sd9hMBfd6qGUjEKgcPB87DkWDNVTkY0w24:KfMBfdx9BkJTY6L

Malware Config

Extracted

Family

ermac

C2

http://81.177.140.60:3434

AES_key
AES_key
AES_key
rsa_pubkey
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key

Extracted

Family

hook

C2

http://81.177.140.60:3434

AES_key
AES_key
AES_key
rsa_pubkey
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key

Targets

    • Target

      d8a7bc4d3d900e901fafa5f3b781a94cedca930fd34b120497c0521847387398.bin

    • Size

      3.8MB

    • MD5

      533e38ae9ee490c9a7009eb2bdc7db91

    • SHA1

      2b3def93f7795396a4e5c05c7402f252df49092e

    • SHA256

      d8a7bc4d3d900e901fafa5f3b781a94cedca930fd34b120497c0521847387398

    • SHA512

      456706099a29f7c819c1d7f3d1e2ffb8391fc08c199bc634725023baad1ab79a5447d7224ef667d6f3f164f579d9d0be0fc89b8847ca30f332e67ac2c0d73fc3

    • SSDEEP

      98304:Sd9hMBfd6qGUjEKgcPB87DkWDNVTkY0w24:KfMBfdx9BkJTY6L

    • Ermac

      An Android banking trojan first seen in July 2021.

    • Ermac2 payload

    • Hook

      Hook is an Android malware that is based on Ermac with RAT capabilities.

    • Checks if the Android device is rooted.

    • 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 information about the current Wi-Fi connection

      Application may abuse the framework's APIs to collect information about the current Wi-Fi connection.

    • Queries the mobile country code (MCC)

    • Reads information about phone network operator.

    • Requests changing the default SMS application.

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

MITRE ATT&CK Mobile v15

Tasks