Overview

overview

10

Static

static

6

d509b8190a...31.apk

android-9-x86

10

d509b8190a...31.apk

android-10-x64

10

d509b8190a...31.apk

android-11-x64

10

Analysis

  • max time kernel
    63s
  • max time network
    162s
  • 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
    09-10-2024 22:08

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General

  • Target

    d509b8190a0a0638f2843d5131b889bbd706e1fea92ca7afe9f6d36fa04dce31.apk

  • Size

    3.4MB

  • MD5

    2f6113bd114d16add9d0a5fda8b9f77a

  • SHA1

    5cf070ff727454e2010215546740fa33c4ad42f2

  • SHA256

    d509b8190a0a0638f2843d5131b889bbd706e1fea92ca7afe9f6d36fa04dce31

  • SHA512

    e57897151222a5b698266b96e7a1a962ff4982eee7385419d647e43f27d0df1d077338f803b34691aabbceb1c7e694623d5e1bff465b4ef0a0a55d0712f2ffee

  • SSDEEP

    49152:olkBrgukPnA66MQ6TQFheOPBMldxGIqiuCjpuylt3QbDNXXzcREc9KwRVzLokGO7:oGQPnA66J/qjkiuPjJXj7c8wRFoZy

Score
10/10
hookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistenceratstealthtrojan

Malware Config

Extracted

Family

hook

C2

http://89.248.201.43

DES_key
AES_key

Signatures

  • Hook

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

    rattrojaninfostealerhook
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • 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 9 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
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
    evasion
  • 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

Processes

  • com.yxsfjxnfs.avkeoizrg
    1⤵
    • Removes its main activity from the application launcher
    • 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).
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • 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)
    PID:4232
    • /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.yxsfjxnfs.avkeoizrg/app_dex/classes.dex --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.yxsfjxnfs.avkeoizrg/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4296

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

Hide Artifacts

2
T1628

Suppress Application Icon

1
T1628.001

User Evasion

1
T1628.002

Impair Defenses

1
T1629

Prevent Application Removal

1
T1629.001

Input Injection

1
T1516

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 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.yxsfjxnfs.avkeoizrg/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    bda7cb8932f952def25e3f1198a095d6

    SHA1

    a770ca68717d1f3fa7b1e089ad55ab834ff9ab2d

    SHA256

    6f8a840bac0431d20b98765fa20cf0c8ee792eb31c70a1cfda03a84770f5c3d2

    SHA512

    a48451f24edf81365e9c92e379b7f8a10df376b0128240642204de2e12bad062f9ec1eaf6f647962fc801b6601d313a6d901b1996a1de0ddd46b0fd9598165d8

    Download Submit

  • /data/data/com.yxsfjxnfs.avkeoizrg/cache/classes.dex
    Filesize

    1.0MB

    MD5

    7a315a420f1455f5a7197a2b88ac55dd

    SHA1

    c89c2bb2c037457969e1747f1e7ffbb5bcd05be1

    SHA256

    0c0cd8185278b34db1d76a4b3c54460a6d2b044bb88308d9de28e38a2e545121

    SHA512

    68a5d990432b9161dcd4ca811919d2c7c725661558ba30413c7347e5144b886d35160c35eba5efe6b273855f60d5aa42de0e24f6380e4d19069fb9163f979233

    Download Submit

  • /data/data/com.yxsfjxnfs.avkeoizrg/cache/classes.zip
    Filesize

    1.0MB

    MD5

    bbae5bf3b8d7b3174cd6a68e2b8c91fe

    SHA1

    54187229d0fd597ffff8ee18f8668887986e0641

    SHA256

    aecfa3f2dcdf61bc8a2975dc25ca36d1ac811ed583a03451a712b861549fddf1

    SHA512

    7c802bf7be35a2c441b460b500011499b56c16d3b8bb5d021227fffaa6a493c466cf02161bb7dae1fbdef2e7792ba9adc0a02bbf32015654988056a39e2dadf1

    Download Submit

  • /data/data/com.yxsfjxnfs.avkeoizrg/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.yxsfjxnfs.avkeoizrg/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    9d7e6cf5f890a2f09bf78bc71a2794a8

    SHA1

    5543eeb894d334a75122c57b73e87892c13bc2e5

    SHA256

    ac0472d763fe085665d99678d3ee7991e3b4ef3c53b3a84ccadd9ff6d7761cc4

    SHA512

    92a692176f83a496dae0bea620d0c9af377d7762f9763e0814209c798a45946affcfb13703c50787fda382e516f326e8cd9f85ce8045f76d3fd178fd9f1ba160

    Download Submit

  • /data/data/com.yxsfjxnfs.avkeoizrg/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.yxsfjxnfs.avkeoizrg/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    08dd8dac6e80de58442157b8e24cd3e2

    SHA1

    189df99271cc1e3264022a7d7d4d214bf516f49e

    SHA256

    3674cfc59f53d7076ef91f7013aed207f9fcd382509d12ffa4525ded95f2ff9b

    SHA512

    282e454b3d28ef9f3a386d3c6679ec3902d5e2badf197aef87a1fa7d853a2d25aefd2043500d9b34cf11ccfb693ee0e1130b646e8c9a8b32fe37a24b871768a3

    Download Submit

  • /data/data/com.yxsfjxnfs.avkeoizrg/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    9e4a36153376f88d46def411d061716e

    SHA1

    64a06a7f6080f3f775ae6768313dd24ebb0525b8

    SHA256

    46df68d131fec9b5b1b24efb327cfd9b8994255cf00dbafd90a0307d3347fb27

    SHA512

    7d6af5ed1e94f120018dca4065723abb3d937c58a2e6c4c360e00a401299f3b9bcb701368e787d63ed0ba76fe520a3f2392715613be23ea1afb2d9365e594dd4

    Download Submit

  • /data/data/com.yxsfjxnfs.avkeoizrg/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    8157f764f0c7ada562073b865055c01e

    SHA1

    427532ff39514a8fa6b0bbed6c14c719f0fc0688

    SHA256

    72efc6fcd0666699ba6f254c51e76dfab67c70ca8e941f7fbf9750be0d04663f

    SHA512

    784acf9acc0d8ced5a9d31e515acbe4c09f329a464bfa48d245d23e62903b2185379edddb985939d87d3946324b970ebbbd6a4c58ff7c380423374729e9aa0c1

    Download Submit

  • /data/user/0/com.yxsfjxnfs.avkeoizrg/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    ff7adc9a0bb2be82f8bcfcd5b879e795

    SHA1

    5126e4e9d2a0c5dff59df8877286a483e0e5ae5f

    SHA256

    e794ea01ccf82a1524b99e1046872bf6ff4cd25625a44b7736f59f234eca096b

    SHA512

    8aa6c6a4bb38d6af1487d71aec4a3a301e2f2bedcd95950c91edf741c77955c945d55ab489c93bab67cc4d49971235b48cb25a8f2e1b10cb17e0bf01997f1855

    Download Submit