General

  • Target

    91c8fc62f4643ed7a9418dbf37601143f8da7e84700f5df6d83ea1f585dfbbcc.bin

  • Size

    2.6MB

  • Sample

    250104-1wrdsszjcw

  • MD5

    e027f25cd292bc603a0fc0e15060ac80

  • SHA1

    4c0684041a3ddb128c51d3aca1542bbd30af4ede

  • SHA256

    91c8fc62f4643ed7a9418dbf37601143f8da7e84700f5df6d83ea1f585dfbbcc

  • SHA512

    001b29dc225838d5e2aa245b98b37b20bd98906cc041f9c7b0888d3f014f2c2d08f440f9f010cddf47964afadb9c09e7a13d87f38748dddf2612406a28f545c3

  • SSDEEP

    49152:ug/0eyPmfR9NunmkDI0O+bMGoUdB5NESR5QQXPGRo0m3U5N:dJ9NumkDI0O+wIdB5NE+x0mEH

Malware Config

Extracted

Family

ermac

C2

http://3.91.190.163:3434

rsa_pubkey
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://3.91.190.163:3434

rsa_pubkey
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key

Targets

    • Target

      91c8fc62f4643ed7a9418dbf37601143f8da7e84700f5df6d83ea1f585dfbbcc.bin

    • Size

      2.6MB

    • MD5

      e027f25cd292bc603a0fc0e15060ac80

    • SHA1

      4c0684041a3ddb128c51d3aca1542bbd30af4ede

    • SHA256

      91c8fc62f4643ed7a9418dbf37601143f8da7e84700f5df6d83ea1f585dfbbcc

    • SHA512

      001b29dc225838d5e2aa245b98b37b20bd98906cc041f9c7b0888d3f014f2c2d08f440f9f010cddf47964afadb9c09e7a13d87f38748dddf2612406a28f545c3

    • SSDEEP

      49152:ug/0eyPmfR9NunmkDI0O+bMGoUdB5NESR5QQXPGRo0m3U5N:dJ9NumkDI0O+wIdB5NE+x0mEH

    • Ermac

      An Android banking trojan first seen in July 2021.

    • Ermac family

    • Ermac2 payload

    • Hook

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

    • Hook family

    • 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 information about running processes on the device

      Application may abuse the framework's APIs to collect information about running processes on the device.

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

MITRE ATT&CK Mobile v15

Tasks