Overview

overview

10

Static

static

6

4dbbdd9d7b...83.apk

android-9-x86

10

4dbbdd9d7b...83.apk

android-10-x64

10

4dbbdd9d7b...83.apk

android-11-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    android-9_x86
  • resource
    android-x86-arm-20240910-en
  • resource tags

    arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
  • submitted
    19-01-2025 22:07

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General

  • Target

    4dbbdd9d7bd571da76c225d2038bee65a390f4bb6954f6bc1f73733ac4a7c183.apk

  • Size

    4.9MB

  • MD5

    cc785ad1712c11c235c733aa68268b20

  • SHA1

    9a2bbc4ed6df4f1ca06a9e3349afb280270a64f7

  • SHA256

    4dbbdd9d7bd571da76c225d2038bee65a390f4bb6954f6bc1f73733ac4a7c183

  • SHA512

    f9c3704e22658f1610795de501d03332acaf28b87ef43b9927b67ffacb942c911ff8182ab389d6324762e0165d190d879d1e6bf5a4d31a57dbc4e62df1a6e8dd

  • SSDEEP

    98304:FrfB4DvmW6Qan0U1k4fS0XddGbZbFkxGr2yS1jGvU16nPH4xRmldeeIvN:dGvmpBn0eDfBtdGlbFkkax12PH4xRmle

Score
10/10
hookcollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://154.216.17.69

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.tstimtsbu.ymkbnwzwz
    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:4268
    • /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.tstimtsbu.ymkbnwzwz/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.tstimtsbu.ymkbnwzwz/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4294

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

Loading Replay Monitor...

Downloads

  • /data/data/com.tstimtsbu.ymkbnwzwz/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    80f47c4b9c3d93ffc28f976a5436c54f

    SHA1

    c30196370434909e42f13da01fc07cc282848a91

    SHA256

    a1f61e5fbe9a335eae7161ceb22d8a5a665cc07157c438b4880a0e7be1eac6ee

    SHA512

    0366164aa8613d78e7c68d2489a7ea31d81c7ba8f0146edbc6da6ab7604341910ceac89b1a061a67e1036e2c22123679aa2f115e5659689c4308145015434fb1

    Download Submit

  • /data/data/com.tstimtsbu.ymkbnwzwz/cache/classes.dex
    Filesize

    1.0MB

    MD5

    0c85a9d2c666968cb40b693065e8cd64

    SHA1

    03c044b3e85028fb42dfa99d83aa83f7bd2115f9

    SHA256

    14fd89367e2608f5dcc550195866696d5e5984bad72745517988c7a9c04a0b24

    SHA512

    f7682a419d268a8135719e573b6fbf64a223edd75c3c3233c12791a015c4bca842c7f2938006d5115c49e392c8cb189589acbc3312d7df526742a5cd580c035d

    Download Submit

  • /data/data/com.tstimtsbu.ymkbnwzwz/cache/classes.zip
    Filesize

    1.0MB

    MD5

    9f1379113d1f0a3ba786bf88a6e5582c

    SHA1

    acbba06ee7f56fe4acfc064fe4c5f802b1136a76

    SHA256

    2f18994a79176a822aceece2bfa7442206a064d719760b92ceb538d5f12a3c4e

    SHA512

    47c224a21c510b131602984818920324ada3f8f95c5d1f84e87e3711066cb30decc54f5644d372548f8879464452496a4ec2eefdca65dbb3a737706b1fcde438

    Download Submit

  • /data/data/com.tstimtsbu.ymkbnwzwz/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.tstimtsbu.ymkbnwzwz/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    39087c0eafa940f50118268edffc937b

    SHA1

    ec0581d813edadf14a5c09f633f00044552b3bec

    SHA256

    33b8130dc6b78bea0ddf423b8ccdd7c6b37efc5ef31036b127930e841ea63764

    SHA512

    ad0fac6910618bbf34dba0934d275e5a4ea4829c35caed70b8e4c279089efff0ba197afc43ffb2c6870fa03a4b1c16b3565c4cc1bd07e625602642dc136874f9

    Download Submit

  • /data/data/com.tstimtsbu.ymkbnwzwz/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.tstimtsbu.ymkbnwzwz/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    b32f36e1acdd2b1f3eb1d1bf310938bf

    SHA1

    e8d945e3f773ce30ba70fe55ba5f24b81df5def4

    SHA256

    7dfd456e464299ec6ad9e39e7ef36e2be84b1b482173549719e603f9c8404a6c

    SHA512

    e43595cdd7ab4293d0e9794397496ad7f67dac02cf9e42c3736453fee2df40e31f7c343693a4874f3083398a6e09a171442fadba6011c26702b905c57abca15b

    Download Submit

  • /data/data/com.tstimtsbu.ymkbnwzwz/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    a7d3a0066a8642b94cf3bdf903fed069

    SHA1

    c372ab43a30d9b1c5a795bb8eed724603109fcce

    SHA256

    59dd91550fb3df3a131a30f9494052854f4483a3ea17670d636c9320da2d3205

    SHA512

    5b8546a2233d827ed25e728763eca00c7dbd719d749e0dcb342d3877cfbb33b33916d626b2101fe202c329b1375da7ffeba6a1f38ea50dc4a1ca98cd7ad6cc63

    Download Submit

  • /data/data/com.tstimtsbu.ymkbnwzwz/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    342e23295aa25de3604c7981428d55a2

    SHA1

    bbf805307592974d7496180f3ec6f2c1e78d46db

    SHA256

    e8ded3b5d3dbca1b275bc9f821ca93ae9c2b213d7714cc03018723df8976ce47

    SHA512

    3a7ea7ad54504d575c5ce597210688b3ee13b67aaa1bdedf3a35c81bdb263d815a52b0234292295635f5e4ea2e9d4980a098570340322c5aa5be78c296d238a0

    Download Submit

  • /data/user/0/com.tstimtsbu.ymkbnwzwz/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    b51f00d66e40226b8893412c8345129f

    SHA1

    21a3161f49910fe69ebeb6ad21a969c591695b69

    SHA256

    bbb0a9663136c2a36e717a03946cca7f166f5ea70cc05a8bbbd1d5f702833495

    SHA512

    f0fa43d8f024341eb1ba5a4e9062df7e928e1878e15a39afc0119eecc4ed98b2917e3a2b2bef1460c0789e4013ab92dd28cfe658bb5285aa947783ec2f6ea180

    Download Submit