Overview

overview

10

Static

static

6

decrypted_...mp.apk

android-9-x86

10

decrypted_...mp.apk

android-10-x64

10

decrypted_...mp.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    131s
  • 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
    09-01-2025 16:13

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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 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
  • 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
    • 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:4315
    • /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.mkjvmvrwu.uwknrkfyg/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.mkjvmvrwu.uwknrkfyg/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4342

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

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

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.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

    ce65ac2cbe541906e73ef90f7eb0ee1d

    SHA1

    bc042ff441101768cbe8cdc926770cf912c49e6f

    SHA256

    33a55223dbe928a96cbf916e5fb553dde9f264e49795d413cd9fb6e29062b638

    SHA512

    ba00e50829085758c44c440a54ce0eed477cdacd03214f795d16a638b493723fdbf697a6757c44ae7a03c3a8af8cb34c5bdc2ce07d993714ca7a8a46efb7bda1

    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

    108KB

    MD5

    3ec5aa54a01aad3753628046616f9831

    SHA1

    2d5a57e50af8daf257035fda7ef8e28f31146e22

    SHA256

    b162d30b042632a7e21c1944b03ee0b2ad65a996ae3b6dcc613547a8cde5d773

    SHA512

    612978bbbebad22ac6b8659ef15b3409ab3e9faa475c047819bd07dbe8ca336faeae95ddc5639ebf6b1b6f0bf63036764f870e22c118c72565b95202b69d2987

    Download Submit

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

    173KB

    MD5

    fa29ddbbd06a2cdfec74643b7437b0f0

    SHA1

    3f293850a5d4d414a068d74bfe2f9970206a5223

    SHA256

    ded5b7bbfe799c43cf70835d67a5cef0adb7101cbf9b536dae8e620fd4f4f176

    SHA512

    21d5847d499acdd923be7498196980ba85b565e8ae6356bb407e144fb6ebe852837d9cfa073d2eebc6760f702ef6d978678db3ca92863af36121228358e4af62

    Download Submit

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

    16KB

    MD5

    cf092acc36fac82a319d94b88b9013c2

    SHA1

    82b4296efbc45e3d1af038c6b0d788dfc458e7e4

    SHA256

    fd527297ef5b083f0aba57b7a74954f34a16b26ad07361f101a3a3aefef86f85

    SHA512

    4e1e2e8665140dc3846b37e3474858fa708861e2736eb08922f7a971839c8495c835cc5414e22a806ae6129d88677ac3bc0055de0a07f72209c596a4e026cd0b

    Download Submit

  • /data/user/0/com.mkjvmvrwu.uwknrkfyg/app_dex/classes.dex
    Filesize

    2.1MB

    MD5

    a77a73903a3c0bacc15e770262cf7840

    SHA1

    1aadc62528c7aff62c5b2a2da3d2dcc2170be4b3

    SHA256

    819dc6f63153d610136e23d5c590205cfda9e3e9d528ddcc129a3128144d147c

    SHA512

    004a638965c0373734a708ecc566bf8b1415997b93d1468ee4fd0ae9621ff39975b5cbeb0754b064495686f6a09f16250df4e9321fc7c2407e4eeed57439613e

    Download Submit