Overview

overview

10

Static

static

6

256b3535a3...8b.apk

android-9-x86

10

256b3535a3...8b.apk

android-10-x64

10

256b3535a3...8b.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    159s
  • 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
    29-11-2024 22:00

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General

  • Target

    256b3535a3f9d6f957d77679aca8a78518b886a613e6eec8617009024c98178b.apk

  • Size

    4.6MB

  • MD5

    43387e62ed0cb5b4c1da1138176c1827

  • SHA1

    9da7889eb21e4e97fc1ddbb91e2d01961dcb875e

  • SHA256

    256b3535a3f9d6f957d77679aca8a78518b886a613e6eec8617009024c98178b

  • SHA512

    e08e08216ad2b6dc382823dcfb0d03fd66d164795c8216bc9a2579e650c3ecafd97022ccf4be5075856294197ea417cd84dc29680d88c2148d1017b30ea1b62d

  • SSDEEP

    98304:EKrpaFXR+gSljjNnRWtayEVrQoJmxsR4GqRe/SiKghZui:cF8Fj5UpEHJ7qReqcD3

Score
10/10
hookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://65.109.83.248

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 a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
    bankerdiscovery
  • 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 8 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
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
    collectioncredential_access
  • 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.kuhzwfkif.ssntarxah
    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)
    • Requests accessing notifications (often used to intercept notifications before users become aware).
    • 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:4259
    • /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.kuhzwfkif.ssntarxah/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.kuhzwfkif.ssntarxah/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4285

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

Access Notifications

1
T1517

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

Process Discovery

1
T1424

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

System Information Discovery

2
T1426

System Network Configuration Discovery

3
T1422

System Network Connections Discovery

1
T1421

Lateral Movement

Collection

Access Notifications

1
T1517

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.kuhzwfkif.ssntarxah/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    43f166abffc9582bfab4d343bfde165e

    SHA1

    e9ed1ac7ed58891dd0a17c1e3314dc73d220a82c

    SHA256

    fe2ac4a392b353e51ead8503415055d5b57bb95cb2b5d69ba6ced0ff62c4e18d

    SHA512

    a37dc8115eeed3892c5733cb3f02b609a5dd28881e7c99a796c39980ecc6ba726df99572e5768c62175769fb365f9a00be51e69029c26048cd30150428f30e53

    Download Submit

  • /data/data/com.kuhzwfkif.ssntarxah/cache/classes.dex
    Filesize

    1.0MB

    MD5

    8608f5606664c79712a1526dcd9614b2

    SHA1

    c693220fc36d48541e1fae9b0359d08c509cae8c

    SHA256

    81f4517c6f475be68631303710952e10d1765786ed3aa0355c7b6a3e0c21b808

    SHA512

    727c9eb693e4323a5dfc9fabe15558aa359c82b733c2e59dc4fb38e574b2fcd353249a96691bbc5be77bb307ecb821fc49a3da2f7b2163a50c0c0145108390fa

    Download Submit

  • /data/data/com.kuhzwfkif.ssntarxah/cache/classes.zip
    Filesize

    1.0MB

    MD5

    afb5355e1a482f5267ea4b89b3a57e8f

    SHA1

    e4e2ccdf870424635a01b08e76660f6a739ef853

    SHA256

    045b9567d46aa82765e0a343188faaf18bd1961753c3418ff465f55335460e5e

    SHA512

    022d3e2fec96e15234c0bb98edd2b3e2da9e8e1eec7fc0c313e7761b996d47951fc739c4ae3f7cf3e2d27b097e427a0ad38fabfd0234640b9b86582c588a0472

    Download Submit

  • /data/data/com.kuhzwfkif.ssntarxah/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.kuhzwfkif.ssntarxah/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    88d3d7fa4b1f5287ee35fb5b2c3a53b4

    SHA1

    b0bb11194298aab587787d362e5f06736aa3a5c9

    SHA256

    4901c5e92033270bafa0e8bd8d4125091a3934f2d970494cf243ddc52904eca6

    SHA512

    3fb2932a361107fafe3bad022ff1c353f30a5dd71fcee0f39d91fb09ed019cacd35cadb7796cb69cea4be102134e2960a0b22c63abd29ddb0a02ddf4a554a8fe

    Download Submit

  • /data/data/com.kuhzwfkif.ssntarxah/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.kuhzwfkif.ssntarxah/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    0dc038d979de32b469ed00022ea5a22f

    SHA1

    bde8a71698cf7aa2d264786a533611ea5e265d97

    SHA256

    0ff7f13e2f88c18685712b0b6a533e7a87750908677cee43daf1f39d48b5a39d

    SHA512

    5c7a19d2668407c0d8b5acc01b5ad8d626c5026c6f053b33daf280cfbbff1bdcf4ece037eed30a0ad8e7f9be5605796661e098f582c49793e2edbcf0e9e5bbec

    Download Submit

  • /data/data/com.kuhzwfkif.ssntarxah/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    0d1f1f9ebb59b6a7418032720736713c

    SHA1

    134bae0036459c2162f2113cd33d028f769e416f

    SHA256

    2726a6cdc86b6df406b049227ed1b8802c8d0c6fbd1732756b76e7b68e98dd91

    SHA512

    aba331db31bec1be0a742889f68c98f08dc1e06f0f298dc5a36da1a1182b8e91e016596be294a16cd408c71471e46897b3fc96c077f531f118482037a6e39d28

    Download Submit

  • /data/data/com.kuhzwfkif.ssntarxah/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    b584480773f13e64768f7535502e7571

    SHA1

    f834b1206883330236cfdff804b655110a986c2d

    SHA256

    14a7100333b6cda37c5f8229641b19a74cf9bb7af1be5c0a89a81031382e48c3

    SHA512

    0e480a155154e763ad7f02924b785dbdbce43056e18ac0d7a37c93e348f90e43749806ffbbf2ddd1db6cdd3d8e57b8812843240ca29e8cd112b0ab4fc3024489

    Download Submit

  • /data/user/0/com.kuhzwfkif.ssntarxah/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    5f72c54d115927a20a4d93368b882573

    SHA1

    04762dde9cf9588ef132d1bc59ce98f12916a119

    SHA256

    b32adef1f0b5539604b31308c9ea895c1c44c87c348ef838154ef78b8a23cb06

    SHA512

    51004c34553f0b11fd17ddf30d3346704cc8a6f781c46f0e302d8c76fda470ca6720a1119a4d052836fe12c499ab3b395919eb5981651c654500dbed37fcf4f8

    Download Submit