Overview

overview

10

Static

static

6

5df2819804...86.apk

android-9-x86

10

5df2819804...86.apk

android-10-x64

10

5df2819804...86.apk

android-11-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    android-9_x86
  • resource
    android-x86-arm-20240910-en
  • resource tags

    arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
  • submitted
    19-10-2024 22:14

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General

  • Target

    5df28198041f8cfcd392d60e875f0b606d2115d4bcee9ca827fb313e6a8a7186.apk

  • Size

    914KB

  • MD5

    f7b6c814eb20717f22b867ae2a7fbfcc

  • SHA1

    87f2990c105ef03c73ab0719b95809ef5776a74b

  • SHA256

    5df28198041f8cfcd392d60e875f0b606d2115d4bcee9ca827fb313e6a8a7186

  • SHA512

    6c3c98e9c01c24339815019f86c669d99271e3cb77747129fb67832566d8fc3b775fa7e681d4792e64c99550d4c4e482ccc563952b909d4985497b8cc0f6939c

  • SSDEEP

    24576:6AHVNsExZ+2nld4yd8gJKk0+d072pcBnT:6AH0oTldfnA+aKSx

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.18.241:3434

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
  • 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 7 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
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
    persistence
  • 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

  • SelcukSportsazer.apk
    1⤵
    • Removes its main activity from the application launcher
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • 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).
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4286

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

1
T1624

Broadcast Receivers

1
T1624.001

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

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

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

Input Injection

1
T1516

Replay Monitor

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Downloads

  • /data/data/SelcukSportsazer.apk/app_apkprotector_dex/classes-v1.bin
    Filesize

    686KB

    MD5

    3638d216c8ae1a7036e286f31a21d2a2

    SHA1

    c912f2502d748fbe89fa5aa9a879353b847692c3

    SHA256

    2b294598b6c63a03ca760887548a16031616ba5660af251a177eed63d92f48ad

    SHA512

    a471912ece0302d069a4461f78a7a757d64c22d703a71c4ad0c7c3d8eb81d88491c3f66a4f5c9033ea81cbde4a3d6c5a876f6eb104f8a798428143769f5ad291

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