General

  • Target

    bf3ffeb17088835da1b143a9d5ab3c12beab6343420596d2413b1f3153283329.bin

  • Size

    3.8MB

  • Sample

    240830-1y9m6aygml

  • MD5

    835fd67ff29ceffd40e69cec1a9387a0

  • SHA1

    6ef78912b3e0b4d4fe5262191313a70a09cd13f9

  • SHA256

    bf3ffeb17088835da1b143a9d5ab3c12beab6343420596d2413b1f3153283329

  • SHA512

    be990e536fb163061a4e8c2ccc2dd28a7f32b33a06ad8d109b8f65d3a8359c0e9e22b48dfd438464662224608e08832c20cae664269e20c731df63cdaef18dc3

  • SSDEEP

    98304:MRr6FQVSCyhyqbZ4kpV1B1qmZcA8YS95ZAMw4Wxuoa+719YGssi:MyCSCyMqbZ4mV1X76f95ZS4WEUjRssi

Malware Config

Extracted

Family

ermac

C2

http://91.92.255.65:3434

DES_key
AES_key
AES_key

Targets

    • Target

      bf3ffeb17088835da1b143a9d5ab3c12beab6343420596d2413b1f3153283329.bin

    • Size

      3.8MB

    • MD5

      835fd67ff29ceffd40e69cec1a9387a0

    • SHA1

      6ef78912b3e0b4d4fe5262191313a70a09cd13f9

    • SHA256

      bf3ffeb17088835da1b143a9d5ab3c12beab6343420596d2413b1f3153283329

    • SHA512

      be990e536fb163061a4e8c2ccc2dd28a7f32b33a06ad8d109b8f65d3a8359c0e9e22b48dfd438464662224608e08832c20cae664269e20c731df63cdaef18dc3

    • SSDEEP

      98304:MRr6FQVSCyhyqbZ4kpV1B1qmZcA8YS95ZAMw4Wxuoa+719YGssi:MyCSCyMqbZ4mV1X76f95ZS4WEUjRssi

    • Ermac

      An Android banking trojan first seen in July 2021.

    • 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 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)

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

MITRE ATT&CK Mobile v15

Tasks