Analysis

  • max time kernel
    427129s
  • max time network
    152s
  • 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
    17-01-2024 22:01

General

  • Target

    671c4a8a4cb0d566471e3bc405db08daf9e47d1593014c8fb59fe3b136bcaace.apk

  • Size

    1006KB

  • MD5

    6353c4af6b6ddf9940884d2c38f38acd

  • SHA1

    1f1e736c59654d3f98aa24d5b1250f1abae12f57

  • SHA256

    671c4a8a4cb0d566471e3bc405db08daf9e47d1593014c8fb59fe3b136bcaace

  • SHA512

    6d4b5c4e36b17fc5201292404b3d012be495d2040a60af4987f21b90c34a77f58553f12f3945077c371778b0feb7d85c51eae271866742921373721e3cfcd4e7

  • SSDEEP

    24576:vmmpWhJwuI9QgMprkJ0qEbRCxCnCiCmCVCUCZCGCxCzHaWgx:vmpJbAQX3RcqTLQFErsAHaX

Malware Config

Extracted

Family

ermac

C2

http://38.207.178.212:3434

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:4235

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads