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Overview

overview

10

Static

static

10

9a35c305a9...e3.apk

android-9-x86

10

9a35c305a9...e3.apk

android-11-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    153s
  • 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
    05/01/2025, 22:01

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General

  • Target

    9a35c305a9acaeeb5fafded8eb87e4b17091cf8a9cc95312e6c8d055bc2a8be3.apk

  • Size

    2.1MB

  • MD5

    f3caaadbbd007edc71b0f04a3bad0dad

  • SHA1

    1b30f3ed5aac994d10285fbcd26be50b8b7b20cd

  • SHA256

    9a35c305a9acaeeb5fafded8eb87e4b17091cf8a9cc95312e6c8d055bc2a8be3

  • SHA512

    a36d0b3c03d647f37c3d8537afc957df52ac4a7265414561ef6f086caf16d271f80e3d483ecc233ab96b05d2218a2cba5419b8a4bb3b98cb56c48c0e8cb2a561

  • SSDEEP

    49152:wgS3eyrj+gBbDZgPTGhUIJlAG/6KPGRo438U7XIijUyF:aj+aHZQGhUIJlAG/6q4MXEUyF

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.20.225:3434

rsa_pubkey
AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac family
    ermac
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • 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 a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
    bankerdiscovery
  • 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 11 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
  • Reads information about phone network operator. 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

  • nusku.ermacv2.apk
    1⤵
    • Removes its main activity from the application launcher
    • 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:4597

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Foreground Persistence

1
T1541

Privilege Escalation

Defense Evasion

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

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

System Information Discovery

2
T1426

System Network Configuration Discovery

4
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/data/nusku.ermacv2.apk/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫
    Filesize

    707KB

    MD5

    622b17b889a05f78f5257ee774523228

    SHA1

    60185ec0470e4cdac266acc92b9e0b61aec7c0c3

    SHA256

    a51074660e56860ab6328d370c7c0a936554e56180cd73629281a425cd6cb77f

    SHA512

    702d8ee5685973c02b807f01094653602c13db31a5381698a5db5c445c210421b9187753966fd88c5dd4fa99d5e556475e17d5f4ac9baf25911552e89ed1b791

    Download Submit

  • /data/data/nusku.ermacv2.apk/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫.
    Filesize

    8B

    MD5

    d0cad7824cdb911194689178a2dd652b

    SHA1

    48d080570800da79fbab7fb11d2cf7cfb3e68ed9

    SHA256

    58af52870e8d4f2627ac8c42e0b5f7f41357a3526a4c44e28d1d27a86cec2692

    SHA512

    4f75db5bbe93642ac212a216c430b57d5bba009f981615c66e60346441e8ca1f5deb6be0a6d571954031fc06c7bc396913a3354e7bcd5dafbb4c0dfaf264b27b

    Download Submit