Overview

overview

10

Static

static

6

b5b90de398...b5.apk

android-9-x86

10

b5b90de398...b5.apk

android-10-x64

10

b5b90de398...b5.apk

android-11-x64

10

Analysis

  • max time kernel
    177s
  • max time network
    192s
  • 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
    26-08-2024 22:07

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General

  • Target

    b5b90de398869e31f06631eaf15d91fa5a667fc115d24e23d1760b584edaa5b5.apk

  • Size

    4.3MB

  • MD5

    3ce59889b7cf2cd70243c366d65bffb3

  • SHA1

    d03d65baca4b063a07204c2b63d7cda5d3e93101

  • SHA256

    b5b90de398869e31f06631eaf15d91fa5a667fc115d24e23d1760b584edaa5b5

  • SHA512

    57027354866128ff010d5be7f93fac14fd790faca2fe75f115e978fdad541f86d7bce9f247895a3102144c61067aa8ea3c76aeb6e44c3b3de960a3f78dfc6c13

  • SSDEEP

    98304:BYhr2USRBStSsxZNwft6xbYcNuaoMmeSVSUTKgWRmUNtSSiMdZ:BYhiUSRctPNHo0SATvnSSiMT

Score
10/10
hookcollectioncredential_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 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.vzbnfgfxv.zualtxmfx
    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:4262
    • /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.vzbnfgfxv.zualtxmfx/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.vzbnfgfxv.zualtxmfx/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4291

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

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.vzbnfgfxv.zualtxmfx/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    cd860461cf8e5212660b9f121abdb330

    SHA1

    3b08f45cbd47367b7458ce51c4a600d5fcd64b94

    SHA256

    49d6bb4731a007b46925cdd7949bbf24d9babf332f99d08904959174f399d055

    SHA512

    1c0202ce6bc9d1b01e3149da377a658ecafef3fd2d6ca7eff0facb675b8f27eaf8da69a0682575f8df170219cecedde49c7f7ee4dcd87cea4331ce446f1e8167

    Download Submit

  • /data/data/com.vzbnfgfxv.zualtxmfx/cache/classes.dex
    Filesize

    1.0MB

    MD5

    719f2edbb2c1853317ca9143eb78b6d4

    SHA1

    10ff5d385b49ceef34e27488af36b791bb9face4

    SHA256

    005b37e18489a43767981564798b68850427dd97ba483c5b61c4bc2028d992be

    SHA512

    7ba0c77795b5a5a64e4d7afb886b3aed8575285390ee3669af0e43b464d26a1db24f2d4dd9e72144a26a0b73c29ca044ee219a67f596c6543cc6f9217009e31d

    Download Submit

  • /data/data/com.vzbnfgfxv.zualtxmfx/cache/classes.zip
    Filesize

    1.0MB

    MD5

    5ec8be9cc7cc526a1a56c3c23db1a83b

    SHA1

    b5d8f55879ea970a7f6b424fa688723827199a3d

    SHA256

    7cbd846b3f840891d7440b2c8eee7bdcd09071745c51d1f6ff3f3c1158d54d6b

    SHA512

    eba00db6f23da3137ff8e1a81e0146982cb7f4df920c92ab89b85851b30bcf19e89aa05cc973aed60c17bf39e13ff8a9045ded86e1d5e421003f2838cef5991f

    Download Submit

  • /data/data/com.vzbnfgfxv.zualtxmfx/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.vzbnfgfxv.zualtxmfx/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    731abccfcad124077db440faedbc5b7f

    SHA1

    80731a3375e40c39f2545de0b68ef988e1e0ab30

    SHA256

    685fc8d5f38cf4062441b2978986fedfe92e2c549a31c59538dfd9318dca00ef

    SHA512

    7dc1c52aac763d537d8d10894dab52b73d50127ec0b550cf9b49fb02baf8876fb96b2d6cbb00e5f125f8306c781a7516931d9d2049f2e210453a65dc258a1262

    Download Submit

  • /data/data/com.vzbnfgfxv.zualtxmfx/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.vzbnfgfxv.zualtxmfx/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    5620fd586d61a6ee560548b14dffa203

    SHA1

    f1402c19c877ebb32868317625ad2d5e57ef5e9f

    SHA256

    938dbc59dc85317447a4f48ab182f0b43d01400e74c0767965d0efd2cd130045

    SHA512

    e1d8714aff3944ac52154928124205be076ff39b40afca273d1ca6de1b62f2d59f1ec8a4cd2d6f7a2996e42ef49c197b13e95a81b5de24a5ddd7c9f5a662ee6f

    Download Submit

  • /data/data/com.vzbnfgfxv.zualtxmfx/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    16f4406292e91ef99e672f1fc583eb69

    SHA1

    fa837e8912bd1ffce87676f158fd56e46160ce3f

    SHA256

    ddb462a1b6bf60cb18390daad13a1509135401ecf2598ca7dd63c6ad4a9bafd7

    SHA512

    99582bcf6aa590102b54113e97ad258eff8bcade69864ab1d07e8b99b4bc403cbb249c009827490cf145862365260c68d2026d7ad46a8eb28e4a36e6ebb8c02c

    Download Submit

  • /data/data/com.vzbnfgfxv.zualtxmfx/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    aa62a160efdca80638445f66bab36789

    SHA1

    7518ea7b4fd989c3428647645a51ac3fc36a5b9e

    SHA256

    040c718bd203341657c0c55aa8bb9dd624abc49101fcccc6d24c8f4cc8cbee5b

    SHA512

    fcb5365cad02a2b078c36c26db21ffe94c1f452d7f5ad2f27a52e396cc0372eae7c9b3b87f04c67f552c6c666020b58bb6f77b9bc367d669099391ddf2fbf9c1

    Download Submit

  • /data/user/0/com.vzbnfgfxv.zualtxmfx/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    4fc4b5622059bdca3ba411350161220d

    SHA1

    470f595a4ef848dc7f0ba093121c8e98eb65ba03

    SHA256

    e7d099dcdc03b9cd9609a3e96a0db82ef58c6b09d220296b04fac10a74e22d75

    SHA512

    dbee2b549d37d6f1e1b1f3b323b0744cf4366900b58e59c6945941746dc748e68931542415a10dc0c5e643b859f4949f86e28d86f1229de74a01599c113d7f4e

    Download Submit