Analysis

  • max time kernel
    150s
  • max time network
    161s
  • platform
    android_x64
  • resource
    android-x64-arm64-20240221-en
  • resource tags

    androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240221-enlocale:en-usos:android-11-x64system
  • submitted
    05-03-2024 22:08

General

  • Target

    81129de12457aad24b1098dc12ef060a965f49dd126c73d90f5d1742d2b535a6.apk

  • Size

    1.1MB

  • MD5

    36ef736c457775316f0d9e168e06243a

  • SHA1

    5959a63c275a89e55929f7961add65b6722dfba1

  • SHA256

    81129de12457aad24b1098dc12ef060a965f49dd126c73d90f5d1742d2b535a6

  • SHA512

    9236590a302ff9c5210e571f9f603266028e4e50b6c927b8f9af001f328537bb1ef77746b101be9991c7da34a44e8955c63f02d4e6cf91f1b6740b31e6d8950e

  • SSDEEP

    24576:hdW1FAy9OYOkqVTUfp9CjzD0gg/wm2slNkA70ml9zV6G:a1FAy9OYOkoUzC3ng//tNRf

Malware Config

Extracted

Family

ermac

C2

http://20.77.71.31:3434

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

  • Makes use of the framework's Accessibility service 2 TTPs 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 TTPs 1 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
  • Acquires the wake lock 1 IoCs
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
  • 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

  • com.cojigagoxiyi.totoro
    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:4423

Network

MITRE ATT&CK Mobile v15

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Downloads