Overview

overview

10

Static

static

6

80f29e7884...eb.apk

android-9-x86

10

80f29e7884...eb.apk

android-10-x64

10

80f29e7884...eb.apk

android-11-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    150s
  • 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
    09-12-2024 22:13

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General

  • Target

    80f29e78847d2b9d5dca2667884694147253bb52e609155ae668ef153fa711eb.apk

  • Size

    961KB

  • MD5

    cdfddd96ec4dbecb6913422a3fca3e9d

  • SHA1

    21d318fd2e242712135fe283bd5344c36fcdfa68

  • SHA256

    80f29e78847d2b9d5dca2667884694147253bb52e609155ae668ef153fa711eb

  • SHA512

    107079d339ca7f65f513746d36ba375ef9be93ffbe53a01dc0c896e36c43a66e437bcb378a58781c79cdc309d17502af9501f69765b92a318941ad6cd9b44d67

  • SSDEEP

    24576:9gSLlUELdYh2YlGIeCrGTf4jN1yR5xiho3qtaJyL3:9gS4GTwjN1eVqtGyL3

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://ahmet10.duckdns.org:3434

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.

    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 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
    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

  • Com.build.bekemal.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:4370
    • /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/Com.build.bekemal.apk/app_apkprotector_dex/classes-v1.bin --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/Com.build.bekemal.apk/app_apkprotector_dex/oat/x86/classes-v1.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4444

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/Com.build.bekemal.apk/app_apkprotector_dex/classes-v1.bin
    Filesize

    547KB

    MD5

    60b930a8b3a464c74ff5dfdb649d5cc0

    SHA1

    1cb9addef2b45ce773de05cd12912456c55603a9

    SHA256

    80d458cbf1e6871d86853c47927b11ea241707aaaf9c14e29f73e6ec1071e129

    SHA512

    75e2ac99d68439ed517f2c3437483bece1244c0f8c4bfa5d7265a1fdb788911d5d64ff453a5bd1369bd18a5ee0c32b24dbdeb735c562720f339ae2fa8a44295a

    Download Submit

  • /data/user/0/Com.build.bekemal.apk/app_apkprotector_dex/classes-v1.bin
    Filesize

    547KB

    MD5

    a6a5c792cfa64e34b2437b5adcf13e92

    SHA1

    ed4154fb5dca6ab35b66ab51159f3ac4d40dfd1c

    SHA256

    ce0775853d85ec00625c9e43fb4939d4cadf425653ae6f8003d9346774579d71

    SHA512

    0761675f0431dd55bc821bbd6ad16438295f8ced8409e55c124f832a1340c21c9157deb2037af752475e5a9cf0c8caaed5a5848f6e1245fe7b35a477c9def2f8

    Download Submit