Overview

overview

10

Static

static

6

f9bbf860e4...7b.apk

android-9-x86

10

f9bbf860e4...7b.apk

android-10-x64

10

f9bbf860e4...7b.apk

android-11-x64

10

Analysis

  • max time kernel
    178s
  • max time network
    189s
  • 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
    13-08-2024 22:04

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General

  • Target

    f9bbf860e422bb10b1c650761e4ee0705c12e2d39fe2caf358c473b0eca67c7b.apk

  • Size

    4.2MB

  • MD5

    cd01689f3c32cd5288cdb0a109771452

  • SHA1

    46b1a045c6228a411a7d718abf679ca59366f7db

  • SHA256

    f9bbf860e422bb10b1c650761e4ee0705c12e2d39fe2caf358c473b0eca67c7b

  • SHA512

    0adce58d2a2a70ad43a7204e41ea5a0aa25a34d1f1f0b9b69056305f0e3de17e75d62438eaa4853369ff1854296a9cdf9b7493a1f1660abf4c8f663492a3050d

  • SSDEEP

    98304:bavNlQns240fMHBKtmLXgrMyvUU3ItlCUoJ16p+ExqjKr4EysxWPm/:ba1mns2400cmTgWlCT6EO4KYsJ

Score
10/10
hookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://134.255.180.156

DES_key
AES_key

Signatures

  • Hook

    Hook is an Android malware that is based on Ermac with RAT capabilities.

    rattrojaninfostealerhook
  • 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 information about running processes on the device 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to collect information about running processes on the device.

    discovery
  • 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 5 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries information about the current Wi-Fi connection 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to collect information about the current Wi-Fi connection.

    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
  • Schedules tasks to execute at a specified time 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to perform task scheduling for initial or recurring execution of malicious code.

    executionpersistence
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact

Processes

  • com.klydcbhmc.mcuvooubp
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Queries information about running processes on the device
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Performs UI accessibility actions on behalf of the user
    • Queries information about the current Wi-Fi connection
    • 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)
    • Schedules tasks to execute at a specified time
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4255
    • /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.klydcbhmc.mcuvooubp/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.klydcbhmc.mcuvooubp/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4283

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

1
T1603

Persistence

Event Triggered Execution

1
T1624

Broadcast Receivers

1
T1624.001

Foreground Persistence

1
T1541

Scheduled Task/Job

1
T1603

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1
T1407

Foreground Persistence

1
T1541

Hide Artifacts

1
T1628

User Evasion

1
T1628.002

Impair Defenses

1
T1629

Prevent Application Removal

1
T1629.001

Input Injection

1
T1516

Credential Access

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

Process Discovery

1
T1424

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

System Network Configuration Discovery

2
T1422

System Network Connections Discovery

1
T1421

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.klydcbhmc.mcuvooubp/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    130c3d3443a8bc2ce482b930e267780e

    SHA1

    6738a5a1fb34fd8438e2d8ae5242657cc655c560

    SHA256

    44a78cf23881f1795e14fdfc67ed789de9dc4cecc27d1e1b3be91d479cc31690

    SHA512

    6a7f30dc1fcf21797ca5963fef34dee20a8fea3eeea5fa536a181d4d478f61d987fca120f086642535045edd359a296bd3684fb49a3fe445fda477f8f9af24c2

    Download Submit

  • /data/data/com.klydcbhmc.mcuvooubp/cache/classes.dex
    Filesize

    1.0MB

    MD5

    ace896a0044a16e207a56b90401a3346

    SHA1

    c470d4635e5f955cc93a20b56eec5dd97261f177

    SHA256

    b712ca778db6b6e10422f08ae45df0b0310f086115695338e1e3f681daf1cbb6

    SHA512

    0c97a7c62bc4e88912ca11e503451c3bcd590966667948ae77e241222dfec85dc7c0d3a23636ab562d41cc92146c4b7416ed4cb67485632a4375dd672ac5423d

    Download Submit

  • /data/data/com.klydcbhmc.mcuvooubp/cache/classes.zip
    Filesize

    1.0MB

    MD5

    18f11d758242b4831d1d8c29503479a8

    SHA1

    844113d2795fc4869b405b2a3e8b6038d415a7a3

    SHA256

    6099095d13cd8983c7e0b47293aed5a89bce1f9b7d9f949141185a9c37cf52f9

    SHA512

    b7d407c6ef2dd8553a9bdab3436a5dda38cbd55f33867170726c8507d044bd6ea2b613cdf3f7f4ad8462e2a08db7be1442d9736bf555830f6b963e8315467a80

    Download Submit

  • /data/data/com.klydcbhmc.mcuvooubp/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.klydcbhmc.mcuvooubp/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    8cdaf75751ca550c8a229f61e8fc4d65

    SHA1

    b9b1b6d5466db17b7644a552a4b12857ebcf128e

    SHA256

    e704d4d6df5cea8671228b26703f60cfc64c23dc5b6a2b6d9fcbdb6dfadff5f0

    SHA512

    7715700138d5764521a7023ebeb2badb83b79bcca0c9b7d67298a17eaa04394da5b8beb0506eba192392274fbcc5b456a703d9aa2bcfa3f114432a6aa510f3d0

    Download Submit

  • /data/data/com.klydcbhmc.mcuvooubp/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.klydcbhmc.mcuvooubp/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    d01b12707306eaa54b3819c9fe8dbb97

    SHA1

    28a523172b0c8fb427c2c898deb2c7761827cbf2

    SHA256

    6db913a6452560dbc053987d4d0ff84120658869eace11240af3010cd24c95f3

    SHA512

    d3a6a29b0ca13c69c49f09c07432f17c597527719a203996c6a719801b351f0103dd021945aea51456b9c178c6fb98c7cf059cae4cc603e8f3cba8875cad5ee4

    Download Submit

  • /data/data/com.klydcbhmc.mcuvooubp/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    797c87e8bf02209137933300598d7d66

    SHA1

    7831f60b6b6ab43a86ef8b26914339ba5dd6093c

    SHA256

    081c3f577d410d916e1110fb4c55dfa0837c84bb193aaa3fa36741f0a4c273aa

    SHA512

    46548381737aa4919ccc31a21c8f9214b2a6b2e3ec009b7f1b6ceb6cb92a0adf64fd35a8173b1896e50958dc5c7062bf8465dbbd891178702af7f759ffe5872f

    Download Submit

  • /data/data/com.klydcbhmc.mcuvooubp/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    6fbee824629c2cb5ca7920b2079a62fe

    SHA1

    993b745ecb75423a44cbb97ecfbadc99f69f3b10

    SHA256

    285aa467ee5d3696aedc0fe738d5ffe0422bcde4b3a846c3cc11fb83f6282cd7

    SHA512

    27fa021f4aee302641480e5b13c7366a31ebffb72791db4c1906c54ebafa37763a95d145a37324c505a7724832a02e85249f24667a475fd956ced269b7479a0f

    Download Submit

  • /data/user/0/com.klydcbhmc.mcuvooubp/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    81739b3733410461ab4deec4f571921c

    SHA1

    75a19b58ca07111030e58c8dccf1a0b97a204c9b

    SHA256

    575cd75521639ab5760ea09b88e5404eb6b5c518cce02017fc5c609867e9ac67

    SHA512

    d394e76d79e2938d28077419eedee99b1aa8d6ab20ad7fa852543929b70a5314abfc6125584063fb3c37a86fdbfcaf00ad71b10406101768021fc050d137e0f7

    Download Submit