Overview

overview

10

Static

static

6

b48ab785b4...58.apk

android-9-x86

10

b48ab785b4...58.apk

android-10-x64

10

b48ab785b4...58.apk

android-11-x64

10

Analysis

  • max time kernel
    177s
  • max time network
    191s
  • 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
    13-08-2024 22:03

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General

  • Target

    b48ab785b4e48facdfbb2ab8d85751bbefabb881e345dffaf8a4cc1ead44c858.apk

  • Size

    4.2MB

  • MD5

    da4e0f985b07fab3a045fb6d7f2ce398

  • SHA1

    3ca9928e71cbd5d8644f479d4ff271db0e19f472

  • SHA256

    b48ab785b4e48facdfbb2ab8d85751bbefabb881e345dffaf8a4cc1ead44c858

  • SHA512

    c1afb0e7bbd44d54df134e77029ddcd181e817d6f2022446b316c5f2720bc817d21bee6571e6b89a1e932a6996f5a1c3e95e29dbe01fc9378cfa6f1c145acf85

  • SSDEEP

    98304:VCKOgBNoIBdl6gcoXveOE2k1YLqPhjQEQ+Jt1MsigHy:0wyIBdlFN/eOCYisEQ+n13iV

Score
10/10
hookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://134.255.180.156

DES_key
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 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 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
  • Reads information about phone network operator. 1 TTPs
    discovery
  • 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.ynvokquxf.prtaauras
    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
    • 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:4320
    • /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.ynvokquxf.prtaauras/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.ynvokquxf.prtaauras/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4350

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

1
T1628

User Evasion

1
T1628.002

Impair Defenses

1
T1629

Prevent Application Removal

1
T1629.001

Input Injection

1
T1516

Credential Access

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

2
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.ynvokquxf.prtaauras/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    4044d416d15df7d10971d6a98db761cf

    SHA1

    9dcedadc7ca16e1127a0eb4fb71bbdb11e015c9b

    SHA256

    93c8cdb82d902f5545d54a4e020dbb3fc7652e56b3bf4667fe3366ea8b475076

    SHA512

    f67c02cdae6bfa4ba03739518b62f94cc5320aa5347be30a12cd4ff18ff34c0f83870dc05d4515fb336d29dbcdb4e933e894336e6708e243ed73a65f494f3f19

    Download Submit

  • /data/data/com.ynvokquxf.prtaauras/cache/classes.dex
    Filesize

    1.0MB

    MD5

    968b64f2d40f2c1589b7d65b087b956f

    SHA1

    ce09248d088829f486ce974577a4d8365131c862

    SHA256

    d9985f79cffae4b0773d07e45e5c91cfb78ab8a95b186cd7e80fb406d47d76e7

    SHA512

    8ac46e7ac19f322120b495a7f7f09841531f0de0775f1606be12fac9c605baa1878e47af53361ccda83598014294ded7141f2be606647b8654202dcdca2efb4d

    Download Submit

  • /data/data/com.ynvokquxf.prtaauras/cache/classes.zip
    Filesize

    1.0MB

    MD5

    5eb2c9d9f39079825bc93741f80a44a0

    SHA1

    84a6d280923e218af3bffb924761696b60556666

    SHA256

    494a078b0a67c2e75d13b33d79a2a24b1c7d63ddbac35e42e4ad355a05225335

    SHA512

    9fc5b64b50051e5f276493e8a7b82a0a69799f2ba69435f5c66344db427da53fc1347e1acca69c7e5db25c9ec80f1af7846e3157b3775301ad978b974dc6f916

    Download Submit

  • /data/data/com.ynvokquxf.prtaauras/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.ynvokquxf.prtaauras/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    a0afe0430c3f0a14346c0ba94a57a593

    SHA1

    93371cbf87cfe16214c6813516b62caddfae2834

    SHA256

    ec0048eb75c0a1c4a22e555c4bd9bc868970d5b8c885c4f291e59c7b382979ba

    SHA512

    dff78003988f9365df7b116e86ea8c7e9b40edae4c054d1002b52551f505753bb06453ee2438ea381eb6320498473268b9830dc40df98a7f692a2b5be2071735

    Download Submit

  • /data/data/com.ynvokquxf.prtaauras/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.ynvokquxf.prtaauras/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    ac131a9c6bb1b5349929773625ed0ecd

    SHA1

    04a60810760e47bda35a4349c71d09becff7dc50

    SHA256

    07adabc6c165deab29631b42a0b56812e84c916d2dba63a62aeb240f60499b23

    SHA512

    e1712ae364ec5f2ebc65b6b9ce025d5e176eb47de1cf442e654af3fc2da91fc7f3cf4bf3a46dc0ff710dae700bb87f2fad61e950228af1b3aab7aba8b4fef588

    Download Submit

  • /data/data/com.ynvokquxf.prtaauras/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    871d75244d03d599091dd91e7f5458a7

    SHA1

    cca18c56f745a87de776ff9d9c1a3e698b73e6c7

    SHA256

    8fe1f5bfd0879801eaa10735ac2e33f2e84ef55c1575d19830c9897d22ce1153

    SHA512

    397bf11a53917180118f3c395561559252ee087bc246acfd40f50c1e389d568cc62eed8c12e6dbb965e3b23f5afdb25ab2d67a9042619075b01e307e1a268dec

    Download Submit

  • /data/data/com.ynvokquxf.prtaauras/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    47e7795cfec0b3f3a9a1a76ba23966c2

    SHA1

    0d94d2b3e6a2b6ee8f7a1361f44b6a73f873dd85

    SHA256

    443c41cdd680ac3a16338034655f7d1fecb7c044b9aa9e3261eb07fabcca08cb

    SHA512

    2ac90609f72984b5416f1fa958a096ce89f5884d1d40d03ca5586758d89b86629f7449fe88bba9f7104545f665f0547334480bf13b092b8bbbead2f1fb4f4248

    Download Submit

  • /data/user/0/com.ynvokquxf.prtaauras/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    8575cb2cffebfab8d6cff0522c1df37e

    SHA1

    b2647f4ddadff8620c5d9e5a4593b82ee141605a

    SHA256

    c8bf296f84ab0ff526bcab02673386de1154b2b4f1dedd95f465cb639aa8c023

    SHA512

    dced138e186d0c58e9372313a490809d9a3ce8c8b9c086f73792328e64de47e7c6c3b1b7bd1a453ca1f964ea1d7ca7909d3595b80a6b343912b996f7b5b24c24

    Download Submit