Overview

overview

10

Static

static

6

5946fa3d97...69.apk

android-9-x86

10

5946fa3d97...69.apk

android-10-x64

10

5946fa3d97...69.apk

android-11-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    151s
  • 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
    29-12-2024 22:01

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General

  • Target

    5946fa3d979b348ba2a23b99ce2747850bae68efcf9d49b2b59821a232f40669.apk

  • Size

    4.1MB

  • MD5

    2bdde773b9cc387d2925c4b0450c7e45

  • SHA1

    fbcecf57e40dcfd45e730c5f474fe2959cf14b0e

  • SHA256

    5946fa3d979b348ba2a23b99ce2747850bae68efcf9d49b2b59821a232f40669

  • SHA512

    17d37fbfcebc12c3b2d9bfd30f999a4946bf79b954a52768b1bad295cc81ee1a267bb9f6f548fe2a6c84e972eefde54595950513e3f091d7ad4842937539b34d

  • SSDEEP

    98304:YdSiLgOLybbV+nCtPtfbgbiDhak+rJcv/szqBcwDyfb83Umdwf8vamE:cvgOLybbV+nCtPtOiv+rJcv/sORi6JE

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.20.225:3434

DES_key
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 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 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
  • Reads information about phone network operator. 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.uqeygonzh.bbfsbooip
    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:4213
    • /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.uqeygonzh.bbfsbooip/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.uqeygonzh.bbfsbooip/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4239

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

4
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.uqeygonzh.bbfsbooip/app_dex/classes.dex
    Filesize

    900KB

    MD5

    10fccd85fc5012d28d75b7464eb01c18

    SHA1

    5ef47b2409bd96af282e09e26ca5bc8842acd084

    SHA256

    b4161abc8aef061c6e7d1df8bea8331e1b8200bf1d9acbd56559e97600281d00

    SHA512

    0976aa366892c5dbc63327c6921e3d9cc866c6e18c3601fa9c9ba66b80de091e5a50b3eb6b47b7135e1a046e28366fcf8563f612d2ba76c01a2481a2d0da61f2

    Download Submit

  • /data/data/com.uqeygonzh.bbfsbooip/cache/classes.dex
    Filesize

    443KB

    MD5

    783719f06161180bf35fba93a8b3c430

    SHA1

    12d96c468ba1240595d085aecc101b7d5a2b3b84

    SHA256

    7bd7165b7c359d1e69012d0cf4ead6adf6876af2249011b7396751a663f42d60

    SHA512

    dd9391002f4e75c836b939fc0c87484f23a5c8f81cdc36477afdcec99187070a725882a3102ece3144b2dc8ad67137cb0ba4ede28a63e264fb453aa10ceb3f58

    Download Submit

  • /data/data/com.uqeygonzh.bbfsbooip/cache/classes.zip
    Filesize

    443KB

    MD5

    7cda731f71bc86d98d668ea1223bc201

    SHA1

    da7147cdf5c616a10892198157cbb4624c9eed15

    SHA256

    5bd0e17839b6a4cb8517d7ad5c1c590ffb7f8061dd2f5aa80d85cdbce15ec420

    SHA512

    b1126aa2684d947328d859407eeb4bd9881672e3ede482728c1537563e5a9377d59c688be7a4bd838d16d7eed6cb743d8611458b8e4ee9fcdfc3e099cb50278b

    Download Submit

  • /data/user/0/com.uqeygonzh.bbfsbooip/app_dex/classes.dex
    Filesize

    900KB

    MD5

    e2425bcc70ab67c34c76defcad76b089

    SHA1

    3fe3cb86b2ca734e0e786e04894e4a2868077a68

    SHA256

    a18e1d4b82a0ec33af2f15c73e13a5100883a69ab95ab5e3f1e8557198a12a39

    SHA512

    a89670f682e28feb133841069f1fcf490b735dbac269e2174542918a12fd968c23d76453942705f3dea9d5a73352558f8f29b464111810b32b0cdc7c16cf7ee4

    Download Submit