Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    android_x86
  • resource
    android-x86-arm-20231215-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20231215-enlocale:en-usos:android-9-x86system
  • submitted
    26-01-2024 22:03

General

  • Target

    5908a10d37db029110e17964d83f17b9464d4da23b85f494f38df3bffa867b04.apk

  • Size

    1002KB

  • MD5

    0833537d187da53ecd06cdd534e0a058

  • SHA1

    6fc84d493ca366c8cb80e8fbcfe61146fbfbfcba

  • SHA256

    5908a10d37db029110e17964d83f17b9464d4da23b85f494f38df3bffa867b04

  • SHA512

    1f99b92c033247596440e2510040bfc030219a6bb5c652a20669b2325d6d3b2bae75284a018ae9af03c3e92bb01de34e68bab9c095ed2d2069f1b895b15b1b29

  • SSDEEP

    24576:0cTRRhmisPuir4ffkZnwjVszd87d8Nd8qd8Gd8Pd84d8zd82d8Dd83x:jTRRwiO4fWHx

Malware Config

Extracted

Family

ermac

C2

http://159.65.52.64:3434

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

  • Makes use of the framework's Accessibility service 3 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Removes its main activity from the application launcher 1 IoCs
  • Acquires the wake lock 1 IoCs
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
  • Uses Crypto APIs (Might try to encrypt user data) 1 IoCs

Processes

  • nusku.ermacv2.apk
    1⤵
    • Makes use of the framework's Accessibility service
    • Removes its main activity from the application launcher
    • Acquires the wake lock
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4512

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads