Analysis

  • max time kernel
    147s
  • max time network
    154s
  • 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
    22-01-2024 22:00

General

  • Target

    665c3b46a756fc5dd252aad45dd4cde6b4c71a98c43364b45efcaaaecbdaa081.apk

  • Size

    850KB

  • MD5

    03b004057077cef0b61122f70aaf8ff0

  • SHA1

    fded68d0edda4a30c5bb839442bf82f11c7a01b2

  • SHA256

    665c3b46a756fc5dd252aad45dd4cde6b4c71a98c43364b45efcaaaecbdaa081

  • SHA512

    2490c36864eccaccad7170df93a86dec1a912d02e43b1fefb2749b0bf604546508405cfa44cfd63641d3b67bf8f986df36d39c601104bd97285ce480b4a8ba4d

  • SSDEEP

    12288:a6h64f3xC+2iT/9BSp78vjQDCCYeoGrllh/o4CaX4VO/xxkbWQ:+4f4+LD9Qp78vjQoPGz9P1jxxkWQ

Malware Config

Extracted

Family

ermac

C2

http://89.23.102.60:3434

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.

  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 IoCs
  • 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

  • remind.indexes.documents.apk
    1⤵
    • 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
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4257

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads