General

  • Target

    paypal.apk

  • Size

    2.6MB

  • Sample

    221021-ppgegabee8

  • MD5

    16e991d73049f1ef5b8f5fa0c075ef05

  • SHA1

    79b5c686478c3db742666068d3835eb3409af32a

  • SHA256

    f4ebdcef8643dbffe8de312cb47c1f94118e6481a4faf4166badfd98a0a9c5d3

  • SHA512

    4b6709f86718a6348feb4dffbf9094594ae269b89a4ff7dac2c0d83f6320f46a3958711ad9c6e49121eedd0e47d5365d19275459653992366c62ce2d1643801e

  • SSDEEP

    49152:Y/cThIEUoEPCM0FjUT8uD4f14CUnA6CKe8NbLDMR:YEFIdP9q9GTn9CctX8

Malware Config

Extracted

Family

ermac

C2

http://193.106.191.121:3434

AES_key
AES_key

Targets

    • Target

      paypal.apk

    • Size

      2.6MB

    • MD5

      16e991d73049f1ef5b8f5fa0c075ef05

    • SHA1

      79b5c686478c3db742666068d3835eb3409af32a

    • SHA256

      f4ebdcef8643dbffe8de312cb47c1f94118e6481a4faf4166badfd98a0a9c5d3

    • SHA512

      4b6709f86718a6348feb4dffbf9094594ae269b89a4ff7dac2c0d83f6320f46a3958711ad9c6e49121eedd0e47d5365d19275459653992366c62ce2d1643801e

    • SSDEEP

      49152:Y/cThIEUoEPCM0FjUT8uD4f14CUnA6CKe8NbLDMR:YEFIdP9q9GTn9CctX8

    • 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