General

  • Target

    1-aligned-signed.apk

  • Size

    4.8MB

  • Sample

    220802-g24rjabgg4

  • MD5

    077f37ae6db44e03f7405f79bab2f825

  • SHA1

    a1a303b33faeabbbac894f070f3691a76ec6d85e

  • SHA256

    03b3fedafc53ef59995d4ff7ceda79317c6d73205a418a8d579815434dc955e9

  • SHA512

    c5e220c617fe3e855d3e8a71c48870f0f1b7b2199fc7d2708f0033eb376a0a1a9005bc509b88cc17cae1d6b4900093bd1dee1151ad129c3f24a664e666c0c31b

Malware Config

Extracted

Family

ermac

C2

http://5.188.33.192:3434

AES_key
AES_key

Targets

    • Target

      1-aligned-signed.apk

    • Size

      4.8MB

    • MD5

      077f37ae6db44e03f7405f79bab2f825

    • SHA1

      a1a303b33faeabbbac894f070f3691a76ec6d85e

    • SHA256

      03b3fedafc53ef59995d4ff7ceda79317c6d73205a418a8d579815434dc955e9

    • SHA512

      c5e220c617fe3e855d3e8a71c48870f0f1b7b2199fc7d2708f0033eb376a0a1a9005bc509b88cc17cae1d6b4900093bd1dee1151ad129c3f24a664e666c0c31b

    • Ermac

      An Android banking trojan first seen in July 2021.

    • Makes use of the framework's Accessibility service.

    • 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.

    • Removes a system notification.

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

MITRE ATT&CK Matrix

Tasks