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Overview

overview

10

Static

static

6

decrypted_...mp.apk

android-9-x86

decrypted_...mp.apk

android-10-x64

10

decrypted_...mp.apk

android-11-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    android-10_x64
  • resource
    android-x64-20240910-en
  • resource tags

    arch:x64arch:x86image:android-x64-20240910-enlocale:en-usos:android-10-x64system
  • submitted
    09/01/2025, 16:18

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General

  • Target

    decrypted_2587456092053789685.tmp.apk

  • Size

    4.5MB

  • MD5

    49a7fb554e1a92d6d1b071664346ace7

  • SHA1

    09fe4fd712ad83941e7cf6afc2468c30de59cf4e

  • SHA256

    26db08ef808409eb973a698d26ac83d99f46c8aa7fa35c96bf8140fd94cb2ca1

  • SHA512

    35a610afad18e758b548fe107ae4b306aef08aa2f9c06d5c3501365b85c8880ceb7be0cec9d13d5bbffd28957c67c2ffa1e00ae883f7ff67a3ccedfaee456b72

  • SSDEEP

    98304:rUT1biIJ4atOtQ7YBMEGFQXKZ02/a1t6nGGwGrpji8qTueB:QT1p1wB0QXKv/a3i9rNWTuw

Score
10/10
hookcollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://lankfnajasdfzcvvxzxcrrtfas.pro; http://lankfnajasdfasdfcxcescgt.pro; http://lankfnajasdfdsfngaaslsss.pro; http://lankfnajasdfanbabwqeda.pro; http://lankfnajasdfasnbadsfaaa.pro

http://lankfnajasdfzcvvxzxcrrtfas.pro

http://lankfnajasdfasdfcxcescgt.pro

http://lankfnajasdfdsfngaaslsss.pro

http://lankfnajasdfanbabwqeda.pro

http://lankfnajasdfasnbadsfaaa.pro
DES_key
AES_key

Signatures

  • Hook

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

    rattrojaninfostealerhook
  • Hook family
    hook
  • Loads dropped Dex/Jar 1 TTPs 2 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
  • Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

    Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

    collectioncredential_accessimpact
  • 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
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • 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
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.mkjvmvrwu.uwknrkfyg
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Obtains sensitive information copied to the device clipboard
    • 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
    • Queries the mobile country code (MCC)
    • 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)
    • Checks CPU information
    • Checks memory information
    PID:5237

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

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

Clipboard Data

1
T1414

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

Process Discovery

1
T1424

System Information Discovery

2
T1426

System Network Configuration Discovery

3
T1422

System Network Connections Discovery

1
T1421

Lateral Movement

Collection

Clipboard Data

1
T1414

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

Data Manipulation

1
T1641

Transmitted Data Manipulation

1
T1641.001

Input Injection

1
T1516

Replay Monitor

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Downloads

  • /data/data/com.mkjvmvrwu.uwknrkfyg/app_dex/classes.dex
    Filesize

    2.1MB

    MD5

    6a9f10ce16936f5a788caecc4acc528a

    SHA1

    9a3843da361fde32d1f75e3499f9ba53c2dc527d

    SHA256

    a9641733758c72633c3cad270795b2a14ba15eeeb1a24c4c6854d98eff20ba99

    SHA512

    850dc528e2ed0f77d02ca6987f3e3f266c9942d90d6681db220b58d7f00836d39eefaf24277dbde394daa18c3db4d003b5ab84f63531415dcd402d33ae97106f

    Download Submit

  • /data/data/com.mkjvmvrwu.uwknrkfyg/cache/classes.dex
    Filesize

    984KB

    MD5

    09c1f9b2a250de233cb0aaeb1243a1c6

    SHA1

    08a4cba0bad96b0666959bbb26f0d3efe43cb4bb

    SHA256

    7e59131c913b569f58202babb0f33eba0838f3a1c4745c3d219dbf5c49399391

    SHA512

    0a1d1e717c98ce44163b3eab601b1572c9efea35de4dbba92ee961331b10985c8a7ab9169dcfbdb75283c39271ff46779cb2870fa80ded1ffb7671293554a9da

    Download Submit

  • /data/data/com.mkjvmvrwu.uwknrkfyg/cache/classes.zip
    Filesize

    985KB

    MD5

    6b94e809192aedd113b81f9c95ee6305

    SHA1

    3f9aed7ab69f0da2a1bb00cd13cd8a4285694add

    SHA256

    1a274231171f58e109492c2652fda9d9e1662cbdd64fd6f8bff0395c1240edac

    SHA512

    d46c4ad17f7e55294d0edd340396fb5c17f9ff0d2230ce198b161e56706572fd4a6930b59efe091d600a3d6eced37cd68528a2a2c00255ccd278367a814a88b5

    Download Submit

  • /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    8b997c6f7d7f9ee3a0e87ffcbe8a15fd

    SHA1

    e141fe2b2100dd39fe4d195701f63d2dff322731

    SHA256

    4a88f11463630c04ecbbefe81fe243d08496505a733809e0f202ce616f9a033e

    SHA512

    a85763f06860bbe0ac9fcb62f42ce19a222eb28ae4c7c1842144e5135005f0b900b8adef841caee91bffd3ff9587254a22f80d39501df48bbb43cc02b132be89

    Download Submit

  • /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    418e83c3004348a0c3cf806acee8075a

    SHA1

    6042aa13b4aaa21d52dd60728a577ca58831fc95

    SHA256

    66f91b8d3b0ac1e84bd27ca753e49389a66dc851368bbc7fb7263104ce2a3e23

    SHA512

    0761b1158a039900fe03ecc8be6fa481f71ed45da56b25f4f5dd7cc517d41a819726c1df6e7cfa643120ad1fade3ad439af8cfb1df16b588d36dce0edb2cee02

    Download Submit

  • /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    d10b13323472cb6db70d4ed02f87bf20

    SHA1

    3b0c2815431f6a6313e827c9f63ce67073333b79

    SHA256

    115ca861a98842ad73061194200797282a64ab7c088ddc15ad8a58767d0cc8d0

    SHA512

    870bffe1beba02506b10e979a0d3211f4433b883e5304ee71fc2109c6d1c4ffbf5020af25dad9d46a82fa2190cade29005631639809349ccb9cd710782bffc92

    Download Submit

  • /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    563eaee8bafccf42086e043b0c8df455

    SHA1

    2b89a0549a4cca536d0fab29638975953ef0e0e6

    SHA256

    acc4f7c88389e8086e4de0f2afe32f7d68347891241e8449f330806ee70627c5

    SHA512

    6de04ac9cb301f9b3533ea4282bbfe0abd39f56ad13931b649aa276b000dac8565a295701f5faf711331a0595eb836b7099aa66640b614529ccd7a0965b2a3b2

    Download Submit