Overview

overview

10

Static

static

6

f867d1a028...fc.apk

android-9-x86

10

f867d1a028...fc.apk

android-10-x64

10

f867d1a028...fc.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    android_x86
  • resource
    android-x86-arm-20240624-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
  • submitted
    02-10-2024 22:10

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General

  • Target

    f867d1a028d71f0e9c74ff10ad8744a9d2b1e26db0f6f58eedb88adea49d24fc.apk

  • Size

    858KB

  • MD5

    b50acc8b6d8370e6934dd145b48827f5

  • SHA1

    a63f66a59158ea829925a0fa6dd9f2f88eed5256

  • SHA256

    f867d1a028d71f0e9c74ff10ad8744a9d2b1e26db0f6f58eedb88adea49d24fc

  • SHA512

    6ba27e964503ff03e518701400a299af0b9ea40406434bb7c8644cc613199dcb7dac10cfc04757ca23ce5f1d00a9665e72df6f202ce98d570e9da234a6b4fbb1

  • SSDEEP

    12288:+AHJx4NmihtPZvnzzc2gOHDZ1V29Mvo+jaB9+rCWQtKOw45hnDxqbFbS:+AHUNrnZvnzDgOjZb2eFU4uWQtKOjnF/

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.19.53:3434

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • 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.

    collectionevasioncredential_access
  • 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 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

  • Canlisexodasimemo.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:4257
    • /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/Canlisexodasimemo.apk/app_apkprotector_dex/classes-v1.bin --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/Canlisexodasimemo.apk/app_apkprotector_dex/oat/x86/classes-v1.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4283

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

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

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/Canlisexodasimemo.apk/app_apkprotector_dex/classes-v1.bin
    Filesize

    686KB

    MD5

    b30923105991b51212abf9d0daac4d78

    SHA1

    4f1878bba01102f9090c13fd49a1a5e39989424d

    SHA256

    69bd3f4016819c10ea9ba854c59209a12c987caf782d6e6c2823092b269676db

    SHA512

    fbd438e645636f383171ae827a6937fda39a5fcc4dc813f77c92ce7917987203294f9db4e3f586496acc5715aecb1ea06cc52492199fdf899cac28f3df222028

    Download Submit

  • /data/user/0/Canlisexodasimemo.apk/app_apkprotector_dex/classes-v1.bin
    Filesize

    686KB

    MD5

    4e34a12182a3b325ef0c8efd3c28c533

    SHA1

    783f6be9701b05e429f036b95f21a212710fa803

    SHA256

    ef62af00a6b028a7bc79d0afd329a2b9f9b2391d4f7640dff5ae4614cfa30265

    SHA512

    85413c37a7a96a41ff85179e766181b2283fb8713ccaa4c0e7c68a7e85afcaef741e2b6fdc9127d4d8eca99245833f1d197a86ecbbe610c6a9fa28713160db4e

    Download Submit