Overview

overview

10

Static

static

6

34705f1cf9...bc.apk

android-9-x86

10

34705f1cf9...bc.apk

android-10-x64

10

34705f1cf9...bc.apk

android-11-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    android_x86
  • resource
    android-x86-arm-20240221-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20240221-enlocale:en-usos:android-9-x86system
  • submitted
    25-02-2024 22:01

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General

  • Target

    34705f1cf928d69a5b42baea51b9c6f6736b7bfc7fd0db2f2f5dff8d060433bc.apk

  • Size

    1.0MB

  • MD5

    c26fd5ba2f252c2e3f362826580d271d

  • SHA1

    b9cab335b8692958d49edc4afcac4b9cb57508c7

  • SHA256

    34705f1cf928d69a5b42baea51b9c6f6736b7bfc7fd0db2f2f5dff8d060433bc

  • SHA512

    833bd51cf97801cb2c3031e6c490c91120882c3c8d784682ed90154972fe33900e8e8360087c5b71e6795377bf320d299c5bebce1ddc27fb6d4026ce8607d107

  • SSDEEP

    24576:fxsyYo6onqmlIJ2GmSiGW2NDZrZzR8kcZgYGIVHZ:f2Rnm6HvBzZpR8kcZ/3Z

Score
10/10
ermacbankercollectiondiscoveryevasioninfostealerstealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://172.214.90.35:3434

AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac2 payload 2 IoCs
  • Makes use of the framework's Accessibility service 2 TTPs 3 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectionevasion
  • 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
    bankerdiscovery
  • Removes its main activity from the application launcher 1 IoCs
    stealthtrojan
  • Loads dropped Dex/Jar 3 IoCs

    Runs executable file dropped to the device during analysis.

  • Acquires the wake lock 1 IoCs
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
    evasion
  • Uses Crypto APIs (Might try to encrypt user data) 1 IoCs

Processes

  • com.vunuxogawenezuzo.judano
    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
    • Loads dropped Dex/Jar
    • 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:4476
    • /system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.vunuxogawenezuzo.judano/app_ded/PMHOEMRMgzPQk5SYZbLF5VQSDVLava6w.dex --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.vunuxogawenezuzo.judano/app_ded/oat/x86/PMHOEMRMgzPQk5SYZbLF5VQSDVLava6w.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4502

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.vunuxogawenezuzo.judano/app_ded/PMHOEMRMgzPQk5SYZbLF5VQSDVLava6w.dex
    Filesize

    885KB

    MD5

    e91c3492d81fb788320ff572b3ea2044

    SHA1

    313d826c033634b0cac663e51c98079528a9d984

    SHA256

    507d8bb6706321988beafb6b4f01ed6d386bc4fe14a61a6b847bb1a35bf2fff5

    SHA512

    2fc0bac99d9454bd063bb6253c29537a7c3ca07e840b209981f6f10bdec35c7fa8b66f9c7c6892d5cf8d941ed3e39747be806e1b1110485f85b289aad72cf3e4

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  • /data/user/0/com.vunuxogawenezuzo.judano/app_ded/PMHOEMRMgzPQk5SYZbLF5VQSDVLava6w.dex
    Filesize

    885KB

    MD5

    e194aef64d367917b3ae9924d98a9e80

    SHA1

    1abd17f494b4f186dd5692c21f7d3c350ac9e9df

    SHA256

    fac7a8d0feeb8c70e0eb2e65a881970cdf77774017bb3faa2946b670966f25dc

    SHA512

    19f745564145c934e99c23acbfe965843befc00ee5aaff4328cd8b554a583c453d633a80940fd97f12502a48d051f7ef9e52b960ba09ff38dd7a2e598133cd40

    Download Submit