General

  • Target

    c6c30839e1e885d4a54fe9d8d3a68b3e1c79e27e15c9a76907ba58a954d8476c.apk

  • Size

    2.8MB

  • Sample

    221012-mf6lwsdcen

  • MD5

    24b1ce69f7066a7bc9bc32e3c969d8d9

  • SHA1

    f36ff949217f3340a717a0e5a4d079b254b876be

  • SHA256

    c6c30839e1e885d4a54fe9d8d3a68b3e1c79e27e15c9a76907ba58a954d8476c

  • SHA512

    d0ef9542547fa0ad59facd30ed4ee2b18e5db8ba98ec87ef6585182047f8dd070d8ded12c9e0e1d8b9bf36b67e395dd0d78028d0e33a4f269ce6e9e015627367

  • SSDEEP

    49152:kQrHl7Y+DlqP9DGrd7Rr4f+D3A7Mu2az5Umfu6VoBlmF0kotnITqK:kQrHhY+D4P8FRHD3A7bKmfXVUwF0kebK

Malware Config

Extracted

Family

ermac

C2

http://31.41.244.187:3434

AES_key
AES_key

Targets

    • Target

      c6c30839e1e885d4a54fe9d8d3a68b3e1c79e27e15c9a76907ba58a954d8476c.apk

    • Size

      2.8MB

    • MD5

      24b1ce69f7066a7bc9bc32e3c969d8d9

    • SHA1

      f36ff949217f3340a717a0e5a4d079b254b876be

    • SHA256

      c6c30839e1e885d4a54fe9d8d3a68b3e1c79e27e15c9a76907ba58a954d8476c

    • SHA512

      d0ef9542547fa0ad59facd30ed4ee2b18e5db8ba98ec87ef6585182047f8dd070d8ded12c9e0e1d8b9bf36b67e395dd0d78028d0e33a4f269ce6e9e015627367

    • SSDEEP

      49152:kQrHl7Y+DlqP9DGrd7Rr4f+D3A7Mu2az5Umfu6VoBlmF0kotnITqK:kQrHhY+D4P8FRHD3A7bKmfXVUwF0kebK

    • Ermac

      An Android banking trojan first seen in July 2021.

    • Ermac2 payload

    • Makes use of the framework's Accessibility service.

    • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps).

    • Removes its main activity from the application launcher

    • Acquires the wake lock.

    • Loads dropped Dex/Jar

      Runs executable file dropped to the device during analysis.

    • 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).

    • Removes a system notification.

    • Uses Crypto APIs (Might try to encrypt user data).

MITRE ATT&CK Matrix

Tasks