Overview

overview

10

Static

static

6

efaa783aff...58.apk

android-9-x86

10

efaa783aff...58.apk

android-10-x64

10

efaa783aff...58.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
    18-11-2024 22:01

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General

  • Target

    efaa783aff130574b84ce63fc957a4ea9e864e0f33ee34b4744d79b1f6357c58.apk

  • Size

    4.5MB

  • MD5

    aa53b28be9e566f884e87a04ede57660

  • SHA1

    a2027d1a6b82123921bdab400943f64a6f219cbb

  • SHA256

    efaa783aff130574b84ce63fc957a4ea9e864e0f33ee34b4744d79b1f6357c58

  • SHA512

    360a6ff617e023ec0a15a5f47ab8fa355b48b86197bcc40bb54d85d31e026e2bb94240febeec5d9d910dbb76a339147ee357e9c454bca3fe663c645ca85b12e4

  • SSDEEP

    98304:gtYFrfo7Lws5lCR7vQfs9EgxKrCSMsk03i73dSXnS7r50l:Ge2rjCR7aWHorCiTS73dSXGlw

Score
10/10
hookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://94.141.120.34

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.bwyzxczbc.fklllrozr
    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:4260
    • /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.bwyzxczbc.fklllrozr/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.bwyzxczbc.fklllrozr/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.bwyzxczbc.fklllrozr/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    1ce544f7a868e0043fd566a325e65e50

    SHA1

    87cfc5af95b76bd58f125dfad0a96ae370e01353

    SHA256

    25543679f034652a28b0862c2febac2c902a340ddb73ade4ca0f8faff732860d

    SHA512

    650c3d3720ab63055ea4febfb4794bef3ff3cba4cb07fab109d09e07fa75ac09b0e8a068d75688ec38b02d3b16bfaf3eef907a586bfb21551f1a625db706f8a3

    Download Submit

  • /data/data/com.bwyzxczbc.fklllrozr/cache/classes.dex
    Filesize

    1.0MB

    MD5

    bcd7cc1d8689b77de9ade55a195ea68c

    SHA1

    84e48cf2655ef264a87454d2e943aecdcf662706

    SHA256

    17ed50bf44f76c8a47b2d5568ce6a8d2336158184d2f985f07306da08711b276

    SHA512

    c428a1a8e81ee5b6463758df2c5454c7c3b7a9cc20db581846f97848dfb41a4aad5765f91a46071451d8e39f87528f07ad366ae104d78e24654760b3500cef61

    Download Submit

  • /data/data/com.bwyzxczbc.fklllrozr/cache/classes.zip
    Filesize

    1.0MB

    MD5

    f6ab39021e83143def92a538661a7470

    SHA1

    cdf141765f6ee6535255834a4510d5d61d8d19e2

    SHA256

    76cdc05af1d17825c2628e27a9d01feb7b1a7639d08aa481223a09500c015310

    SHA512

    e1fd6d60f3e45dd429e13df87533014d6ebc9b7d418ee83fc6dac49cebaa73011a9552e36e90f5d8d595e01d9a2cf6b1d73482214e3b702a947980721ecfe251

    Download Submit

  • /data/data/com.bwyzxczbc.fklllrozr/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.bwyzxczbc.fklllrozr/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    ca857159eb9e762907094b075ba19d91

    SHA1

    4c18b0c5b5c0bfeaa8c99e8458693f537379746e

    SHA256

    8a3259565aff4d0d8d9ef5a3ed2715d8b8bedd56f07033c5d5f9381f2111a94a

    SHA512

    b5e55d480f6bf843b7c534956dd4a90e2e28a6ac1d4372a5429184eab4c1965c8962f159fc58197699e99944bea62146561722ee0f03fef4f3ae490e2059ef3e

    Download Submit

  • /data/data/com.bwyzxczbc.fklllrozr/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.bwyzxczbc.fklllrozr/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    93f312e28357bd6ce7f6117658fd6f56

    SHA1

    eac0f627c064ea0def082fa2c5e4e5aa4d4aa4f2

    SHA256

    e32b7996f7ec65185d4800b1fcfcdb34b089361879f8c8666a5f62109526812b

    SHA512

    1d92a582dbcf3fb42c5e9a0491eead540a14048ed5bd1568f5fc53cba055789cd27b395172f83a8ac7d4d89470ebd9efec7286ba4f2626b64dcb61cfb68e3d58

    Download Submit

  • /data/data/com.bwyzxczbc.fklllrozr/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    839e31225eff7abfec972be3449e5f3f

    SHA1

    23a8355abc8b5f789667a65d040a76a3785dbe18

    SHA256

    63c9674aee3f1d2b4627b530563aab879ce3ea64e8a5b18dcf061b54440888d4

    SHA512

    96c6d625df063de9abc9646ab5405aef34b1c6a924741eac642b2df4fc20a6ceff12bf9ccdca9a78f4af55d3945902dc5ad70335931c800c437a0787ba4ba93c

    Download Submit

  • /data/data/com.bwyzxczbc.fklllrozr/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    2be5fa75c532086870fcc8edbca51eab

    SHA1

    2195177571077a411d7b0017b758f59983919eb2

    SHA256

    553d326a0647344dec67f235d9a8393240e21da23ba8cd0874f87086a08f0007

    SHA512

    2fa86e5725e3b3fe77c4bd5a47e0113667d7cace1ffaa4529d0dccd8d2f5ffd37ff677e1eccf93c1b8d1be4a3e335b1bd011d7d6704ad1c02d05433b876fbeba

    Download Submit

  • /data/user/0/com.bwyzxczbc.fklllrozr/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    4f7f508a747991e2f1cab40868f63904

    SHA1

    fcd1ca0648b2bf8d5701c815442ebadadb1a76e8

    SHA256

    2c1b6a8fee0cb662c1303fb1befd45a89d351f603d1641920432fa12c5731f72

    SHA512

    2748c816a2a5ca8420e4bc77ae14575fe5e0238d91785919c4fe90013676338f32d73bbd6642f361a7fbf233edf2a6a2d3c69abdb6007ac9a3eba3fcd3f9402f

    Download Submit