Overview

overview

10

Static

static

6

chrome.apk

android-9-x86

10

chrome.apk

android-10-x64

10

chrome.apk

android-11-x64

10

Analysis

  • max time kernel
    177s
  • max time network
    185s
  • 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
    06-08-2024 13:08

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General

  • Target

    chrome.apk

  • Size

    4.2MB

  • MD5

    769bb3dc0e0193adba7d0133e877503e

  • SHA1

    88f8774ffb21c8a1eaa43c1177135884ef05f480

  • SHA256

    c285378211e69f0c60c781125246f92357243d1f2832c03234255dc2a90a9674

  • SHA512

    ef011077f49da14eddbef99089af91caf81dd5302c1ae54c820ae87726b8df50dece6bbadac2d053f09ba3f8b918955669550d6ce407a105d800a639e4887513

  • SSDEEP

    98304:mI/Jtgrndt42QTzEndzkX+NW4/e5mwI04KDKk93n:mI/JbzEdzp4Ae5nFDKuX

Score
10/10
hookcollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://85.28.47.32

AES_key

Signatures

  • Hook

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

    rattrojaninfostealerhook
  • 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.tfzqlvjkh.awqzhedco
    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:4319
    • /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.tfzqlvjkh.awqzhedco/app_app_dex/reeifxl.mij --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.tfzqlvjkh.awqzhedco/app_app_dex/oat/x86/reeifxl.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4347

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.tfzqlvjkh.awqzhedco/app_app_dex/reeifxl.mij
    Filesize

    2.9MB

    MD5

    0b63ef48dcecdddc31ecbb43c0963e4e

    SHA1

    1b52828068bf5db80fdf53228005632398644504

    SHA256

    c08a049540a35306b4108b78201eb77b1b47f0c51f7bbb602365f6827dbe2538

    SHA512

    82ba3df2c47f0205a3c1f6910cfe669a283b036d5a003518c6a98c873ded230cda188905b6be47638548d71108eb0132088c8d9c46a15020c8b6d052aac0ab9f

    Download Submit

  • /data/data/com.tfzqlvjkh.awqzhedco/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.tfzqlvjkh.awqzhedco/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    a65bcbe11a2a104102d8933e4eacb413

    SHA1

    a48554f9066957a0f627e10fb43b84b6d2a1574f

    SHA256

    2f8e6ee42df003ca870d5a9e6e63dc8c3e0e5c08b14172e133654c024e2036d0

    SHA512

    2712457beca74d056b54ec5bf0ee5fee564a7c85b6fd58cd097ca43f6ccd416e9ecad6a9e569881196690f90386c7b96ce97d3e38247254eceb5da4fd36c672b

    Download Submit

  • /data/data/com.tfzqlvjkh.awqzhedco/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.tfzqlvjkh.awqzhedco/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    306355eae7e48059ca4ae7aa1aac8e81

    SHA1

    ebf14c647a785c4fbfe267a6034fdf1a39096fba

    SHA256

    30ce12c182e01c83e6e30ce3500c60a99490d8e3b3ac253460bc9a5d0a7f3bb7

    SHA512

    f8ce11abfb595045a6ad1080f3e5ce82c0890f8b19ff53c257c1d7abfb7674059ebed80e3805ed66cf71e491202927a9520535abba19238b335de7138b4ef6cf

    Download Submit

  • /data/data/com.tfzqlvjkh.awqzhedco/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    3e5668862c9e505eb1fb393d91dc7582

    SHA1

    5b05e435fdd600760514aca8a73a5baf3e29b3f0

    SHA256

    5c18de63d21c9f8c319a79ed99bdd3947435041e726cf6f96f04c695236ccb42

    SHA512

    238ac1a1fbc8fd78ca0d408c5269909dc7136d176a16fa404e46b01c7fc0890076e50ea082837b46431d2f34167704cac3201f5115f525e9c0d0da38e55d504b

    Download Submit

  • /data/data/com.tfzqlvjkh.awqzhedco/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    15c2c878fd16849d3523560e3b4633a5

    SHA1

    4eecbffb06a20105babaef2d324c46eef56d3a96

    SHA256

    e8531a25a07964db915181e3422d9c17583dd16de00381e737ece04472e39b82

    SHA512

    0f3ac413ce8f289e24d95e68287508b07ee721fa71709e06b606bd4b4a04749100f381746181434e52b3b00ff57850d2ae7265188250aa27020d4617e76c28d0

    Download Submit

  • /data/user/0/com.tfzqlvjkh.awqzhedco/app_app_dex/reeifxl.mij
    Filesize

    2.9MB

    MD5

    79eb9e0ca8080d66964055634ec335b3

    SHA1

    65a3b704df773a94ab41fe4923710bb6ca3b13cf

    SHA256

    63ff8209ffe0b88458caf246a230932d3102a0dab17517aeed72e9675f8be14f

    SHA512

    5575d460e72401686dea56e88d3fdda6a740188c01694b28686b8292f6b5af309c12894342ac4fcfcb2ded09a442851e51f6b74727005eb6a136ac34adfc9c61

    Download Submit