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
  • Sample250109-tsdj7stqfx
  • SHA256 26db08ef808409eb973a698d26ac83d99f46c8aa7fa35c96bf8140fd94cb2ca1
  • MD5 SHA1 SHA512 SSDEEP
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

        Loading Replay Monitor...

        Downloads

        classes.dex
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/app_dex/classes.dex
        • Size 2.1MB
        • SHA256 a9641733758c72633c3cad270795b2a14ba15eeeb1a24c4c6854d98eff20ba99
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        classes.dex
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/cache/classes.dex
        • Size 984KB
        • SHA256 7e59131c913b569f58202babb0f33eba0838f3a1c4745c3d219dbf5c49399391
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        classes.zip
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/cache/classes.zip
        • Size 985KB
        • SHA256 1a274231171f58e109492c2652fda9d9e1662cbdd64fd6f8bff0395c1240edac
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        androidx.work.workdb
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb
        • Size 4KB
        • SHA256 0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514
        • MD5 SHA1 SHA512
        Submit Download

        androidx.work.workdb-journal
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-journal
        • Size 512B
        • SHA256 4a88f11463630c04ecbbefe81fe243d08496505a733809e0f202ce616f9a033e
        • MD5 SHA1 SHA512
        Submit Download

        androidx.work.workdb-shm
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-shm
        • Size 32KB
        • SHA256 c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        androidx.work.workdb-wal
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal
        • Size 16KB
        • SHA256 66f91b8d3b0ac1e84bd27ca753e49389a66dc851368bbc7fb7263104ce2a3e23
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        androidx.work.workdb-wal
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal
        • Size 108KB
        • SHA256 115ca861a98842ad73061194200797282a64ab7c088ddc15ad8a58767d0cc8d0
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        androidx.work.workdb-wal
        • Path /data/data/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal
        • Size 173KB
        • SHA256 acc4f7c88389e8086e4de0f2afe32f7d68347891241e8449f330806ee70627c5
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download