Overview

overview

10

Static

static

6

93275d3176...28.apk

android-9-x86

10

93275d3176...28.apk

android-10-x64

10

93275d3176...28.apk

android-11-x64

Analysis

  • max time kernel
    146s
  • max time network
    153s
  • 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
    24-10-2024 22:02

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General

  • Target

    93275d31768b7625db22df1c2caa4745d0360aa7dd67f1a105067f9a13c2b628.apk

  • Size

    983KB

  • MD5

    80231dd4c42a739cac8811ff7305b1e7

  • SHA1

    568ed66e944b435172d6361e851ac7579a669816

  • SHA256

    93275d31768b7625db22df1c2caa4745d0360aa7dd67f1a105067f9a13c2b628

  • SHA512

    dc92afab10ac8fb7fd02b824e1aa1ae436db679f816d50b6c29a63638316001e76da2a530b7c1b6e091be3240979008c085f11bfffcea6c623c06ac6e71320d2

  • SSDEEP

    24576:t/xTHK59u7ljPWDHd/7awBgWr+de/JDjTqK:zTHK/WPi/AJNK

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://194.48.251.140:3434

AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
AES_key
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 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

  • com.jakedegivuwuwe.yewo.ajfdgashj
    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:4311
    • /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.jakedegivuwuwe.yewo.ajfdgashj/app_ded/NdBYUlvIVL0o7jEmiEL1kPmhFJlHtUb6.dex --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.jakedegivuwuwe.yewo.ajfdgashj/app_ded/oat/x86/NdBYUlvIVL0o7jEmiEL1kPmhFJlHtUb6.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4336

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.jakedegivuwuwe.yewo.ajfdgashj/app_ded/NdBYUlvIVL0o7jEmiEL1kPmhFJlHtUb6.dex
    Filesize

    684KB

    MD5

    b66e3891944f1d2833bf7c5709a6d465

    SHA1

    6cd33118ee2bf0bd59da7966b9402f4927b31485

    SHA256

    72da42b9fa9d8017de85c9d2f321921c7ae1402b6f5690c91225c6324f1c7f91

    SHA512

    f00fa3037c18d5083aa610ccae3207812eb8fea3917939b66f85c0bbf752e4b39ab15d75a032322c062ebab989f8468956c539d27569e5ec177891741c43b4e3

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  • /data/user/0/com.jakedegivuwuwe.yewo.ajfdgashj/app_ded/NdBYUlvIVL0o7jEmiEL1kPmhFJlHtUb6.dex
    Filesize

    684KB

    MD5

    b5f961a46078b1e1a831d7b6aa66f43d

    SHA1

    c4efd0c40d9e15bf8e8419c1ffb94629d4c2a81b

    SHA256

    d27191ade6edf64acd046dccd1f98573f12747a5b7531aff188ea89bf7234d8a

    SHA512

    b1810ecf7d242e7892473f48ac14e7db9c71c3939981e87a2575aa719200a0ebacf1f15f42119a5687722e97aab6ed59ec27f2847ac1aaf35d85afbb14a93236

    Download Submit