Overview

overview

10

Static

static

6

41baf399eb...45.apk

android-9-x86

10

41baf399eb...45.apk

android-10-x64

10

41baf399eb...45.apk

android-11-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    164s
  • 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
    19/03/2025, 22:00

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    41baf399eb5cbe2734e59083db34a746b75680e59cc6479b7185c24bbe5e6945.apk

  • Size

    3.2MB

  • MD5

    2c2c5de98617fc870459f528bb6abb91

  • SHA1

    b33b46aaf2380accca4fac3224810e281ccd7f1e

  • SHA256

    41baf399eb5cbe2734e59083db34a746b75680e59cc6479b7185c24bbe5e6945

  • SHA512

    5be9eeb54b44585b91e6afecdfb2dadc35931795ba92a9771e32fb4d33e8e8edb4b41569afdb67860a2e7530fb5d68f540c2dea9c447943938755cf6f69f3692

  • SSDEEP

    49152:9Br0Fq9Ttu/GgSg468yO5V2sYbzlX5bqlApkC4YR5AGqJ5IDmO+nnVcTG1:30kt0Lx8yOlYTqlApknYRiJ5IhInMG1

Score
10/10
ermacbankercollectioncredential_accessdefense_evasiondiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://194.26.135.189

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac family
    ermac
  • Ermac2 payload 2 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • Loads dropped Dex/Jar 1 TTPs 3 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.

    collectiondefense_evasioncredential_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.

    defense_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
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
    defense_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

  • tdjhp.lidc02co.a4dfy
    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:4221
    • /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/tdjhp.lidc02co.a4dfy/app_ty3u.j0d.t090.r0o/newobfs/0.pobfs --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/tdjhp.lidc02co.a4dfy/app_ty3u.j0d.t090.r0o/newobfs/oat/x86/0.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4246

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

Loading Replay Monitor...

Downloads

  • /data/data/tdjhp.lidc02co.a4dfy/app_ty3u.j0d.t090.r0o/newobfs/0.pobfs
    Filesize

    757KB

    MD5

    20c1d3dedd185e0f5800c63e847894e0

    SHA1

    53a3c0c2208bcc7e6dc1269f19db628a753d262a

    SHA256

    af90dd2cb28a5812917be710b00e785d7150722ffa9122d78ad9c924d1cb1e9f

    SHA512

    d26e1e082f40584ddb399b440e5e18e0ef12e2ef79019c29edaf537b91eaf9046630229a6e7e5ce6551d79991bb75c11b672ba65a633899a34e4eec7a5a9bddd

    Download Submit

  • /data/user/0/tdjhp.lidc02co.a4dfy/app_ty3u.j0d.t090.r0o/newobfs/0.pobfs
    Filesize

    757KB

    MD5

    3a6dfc48dd948ba5c3c3a6d1fc1ddb1a

    SHA1

    432b10cbe0587cfecb121a022df7b04e6d8bbc1d

    SHA256

    abe0bf9f57ffa461b059f4fa9c3b83628c30a1d0b5ba43768f1b3ec0884c5050

    SHA512

    be975bb440c6dc554beccde7dc976fdcbe2777d446ae1ece9d3ba0070ab5082a52d6be1c87a7cdbc3e3ab347371a655c497bd186622b39489cc04fed8fce33e1

    Download Submit