General

  • Target

    Actulizacion apn CLARO 4.5 LTE .apk

  • Size

    3.8MB

  • Sample

    241005-ydtebszhll

  • MD5

    a9246e1f6b201f068aa62b2aa40857ac

  • SHA1

    a80280dca769280a18672a07cf43ac7a20c8f3e0

  • SHA256

    8dc565bad0cf1aaf70cea40d04bce25fdaf9738f5c73228ee1da6118df81db25

  • SHA512

    8fc79ad790f526961e41e232f86c8bd4e5a96bab2407af6b44a74e2464a738979bfa0a7344961fa35432cb76837a44411522759949b6200673ad2c5260b1ae9d

  • SSDEEP

    98304:ngq71j6kQIgm1vQtzEtQG1jrHUgVUQZ23RWHhpKYYxMj:gqRj6kotzix37FYq

Malware Config

Extracted

Family

ermac

C2

http://176.111.174.221:3434

AES_key
AES_key

Targets

    • Target

      Actulizacion apn CLARO 4.5 LTE .apk

    • Size

      3.8MB

    • MD5

      a9246e1f6b201f068aa62b2aa40857ac

    • SHA1

      a80280dca769280a18672a07cf43ac7a20c8f3e0

    • SHA256

      8dc565bad0cf1aaf70cea40d04bce25fdaf9738f5c73228ee1da6118df81db25

    • SHA512

      8fc79ad790f526961e41e232f86c8bd4e5a96bab2407af6b44a74e2464a738979bfa0a7344961fa35432cb76837a44411522759949b6200673ad2c5260b1ae9d

    • SSDEEP

      98304:ngq71j6kQIgm1vQtzEtQG1jrHUgVUQZ23RWHhpKYYxMj:gqRj6kotzix37FYq

    • 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.

    • 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