Overview

overview

10

Static

static

6

a4fdcaa0ae...1e.apk

android-9-x86

10

a4fdcaa0ae...1e.apk

android-11-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    android-11_x64
  • resource
    android-x64-arm64-20240910-en
  • resource tags

    arch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240910-enlocale:en-usos:android-11-x64system
  • submitted
    13-10-2024 22:09

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General

  • Target

    a4fdcaa0ae189a20b04b0adfc99a5c3810fb01201517569f078ec59449befa1e.apk

  • Size

    1.8MB

  • MD5

    22597c6ac1c89b9b31a1c135b613a645

  • SHA1

    2192ad0149233dd8477babcf64bc643a5fca089a

  • SHA256

    a4fdcaa0ae189a20b04b0adfc99a5c3810fb01201517569f078ec59449befa1e

  • SHA512

    10a5bd408d886d702773aa735a2e17dfb3e398b90f47e9c84224b46b04848c5271d1be49d5b042bdf9a064a1e0187a2efad105ec5ceb48a78fabbc36a4770074

  • SSDEEP

    49152:Zg/94Z2SrHmjLKxqobYnc1Th+tompsZKnnmTD28o2a3+glD6s:hHmyxH1Ty+ZKnncDoblD6s

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.18.158:3434

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac2 payload 1 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

    evasion
  • Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectionevasioncredential_access
  • Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

    Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

    collectioncredential_accessimpact
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
    discovery
  • Acquires the wake lock 1 IoCs
  • Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs

    Application may abuse the framework's foreground service to continue running in the foreground.

    evasionpersistence
  • Performs UI accessibility actions on behalf of the user 1 TTPs 5 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
    discovery
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
    evasion
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.makedubefomi.tudaki
    1⤵
    • Removes its main activity from the application launcher
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Obtains sensitive information copied to the device clipboard
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Performs UI accessibility actions on behalf of the user
    • Queries the mobile country code (MCC)
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4650

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Foreground Persistence

1
T1541

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1
T1407

Foreground Persistence

1
T1541

Hide Artifacts

2
T1628

Suppress Application Icon

1
T1628.001

User Evasion

1
T1628.002

Impair Defenses

1
T1629

Prevent Application Removal

1
T1629.001

Input Injection

1
T1516

Virtualization/Sandbox Evasion

2
T1633

System Checks

2
T1633.001

Credential Access

Clipboard Data

1
T1414

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

System Information Discovery

2
T1426

System Network Configuration Discovery

3
T1422

Lateral Movement

Collection

Clipboard Data

1
T1414

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Screen Capture

1
T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

1
T1471

Data Manipulation

1
T1641

Transmitted Data Manipulation

1
T1641.001

Input Injection

1
T1516

Replay Monitor

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Downloads

  • /data/user/0/com.makedubefomi.tudaki/app_apkprotect_dex/apkprotect-v1.bin
    Filesize

    1.0MB

    MD5

    020c2fe46313eba9352761a685aff345

    SHA1

    cc37a8d7021234d734fe35510cc4a939b72e3e88

    SHA256

    4c7df706fcf6a588090fe1478f0af193d9df12f8a2b26cedde656127bd33e5a6

    SHA512

    8498593deb09709b431ea06a3d52d3a2d1aa9c9173f0155d74dd536d64b7900411a026090b7d8d43baef07f26074c684277af9fcb4a62fc55bac73fcaa88a6f9

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