Overview

overview

10

Static

static

6

84733961bb...98.apk

android-9-x86

10

84733961bb...98.apk

android-10-x64

10

84733961bb...98.apk

android-11-x64

10

Analysis

  • max time kernel
    86s
  • max time network
    151s
  • platform
    android-9_x86
  • resource
    android-x86-arm-20240910-en
  • resource tags

    arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
  • submitted
    06-09-2024 22:00

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General

  • Target

    84733961bb97d314bb231da9dc009e0713010b6062ebcdd31bb014434c798a98.apk

  • Size

    1.5MB

  • MD5

    fe5fbedd1df6cba1429e17ad99d0219a

  • SHA1

    1177d3699678ec363fc144b938a9384246661316

  • SHA256

    84733961bb97d314bb231da9dc009e0713010b6062ebcdd31bb014434c798a98

  • SHA512

    3804441eb4cca4914ba1bda3dbd0137a4c843a65aa5bc7e358996b0839e171aceaf039f1c3928039fd4450f28f6e4f37c06a837ea038251805d1ad9d1b3fdcd8

  • SSDEEP

    24576:wMkMGmminxTff2GK0T/QtHNtT/qVt75tulRe/FDu1A1LQ/PLtvKemKsWhWmRP:XDGyf2GotJ/0dtufuFDlc/PLtyemHWh5

Score
10/10
cerberusbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistenceratstealthtrojan

Malware Config

Extracted

Family

cerberus

C2

http://asdegrandersa.ru

Signatures

  • Cerberus

    An Android banker that is being rented to actors beginning in 2019.

    bankertrojaninfostealerevasionratcerberus
  • Removes its main activity from the application launcher 1 TTPs 2 IoCs
    stealthtrojanevasion
  • Loads dropped Dex/Jar 1 TTPs 2 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 the phone number (MSISDN for GSM devices) 1 TTPs
    discovery
  • Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Requests changing the default SMS application. 2 TTPs 1 IoCs
    collectionimpact
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
    evasion
  • Listens for changes in the sensor environment (might be used to detect emulation) 1 TTPs 1 IoCs
    evasion
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
    persistence
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.park.walnut
    1⤵
    • Removes its main activity from the application launcher
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Performs UI accessibility actions on behalf of the user
    • Queries the mobile country code (MCC)
    • Requests changing the default SMS application.
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Listens for changes in the sensor environment (might be used to detect emulation)
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Checks CPU information
    • Checks memory information
    PID:4358
    • /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.park.walnut/app_DynamicOptDex/oGb.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.park.walnut/app_DynamicOptDex/oat/x86/oGb.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4386

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

1
T1624

Broadcast Receivers

1
T1624.001

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1
T1407

Hide Artifacts

3
T1628

Suppress Application Icon

1
T1628.001

User Evasion

2
T1628.002

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

System Information Discovery

2
T1426

System Network Configuration Discovery

2
T1422

Lateral Movement

Collection

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Protected User Data

1
T1636

SMS Messages

1
T1636.004

Screen Capture

1
T1513

Command and Control

Exfiltration

Impact

Input Injection

1
T1516

SMS Control

1
T1582

Replay Monitor

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Downloads

  • /data/data/com.park.walnut/app_DynamicOptDex/oGb.json
    Filesize

    64KB

    MD5

    c52d71f6df4b14b089e0fcd137b75443

    SHA1

    5c306d2c9c067bf06e889a781df451d80c300a52

    SHA256

    b35aa8ffd88888c6f1b925101a7e4adab90fa779367a28c6b56e1540ca21f74c

    SHA512

    a6a292569918e2f6bdb468a32d15337e1b7c90450ba3224d1e9fde3eece4326f4dd29748fa75f48ee43597dcb7ec7b696a891d1357619d098776b1fe71311b2e

    Download Submit

  • /data/data/com.park.walnut/app_DynamicOptDex/oGb.json
    Filesize

    64KB

    MD5

    f41c951df8b5cebf80f534a8b9ed9599

    SHA1

    9f605185b2b6ee9ff5b33c90ca1691fe8e6d8e32

    SHA256

    7aa6a909312c3a7fffad087afe439847d99bb2424962fea5c89dae9ac957206b

    SHA512

    d61631da41222b6d2d3eb13852b1e16a8e3e4315ae8258b96d707a851d8bb3e2714aa3346048f68d1e379c8d896910e9fdb6bd955af1f6a72effb5e34028769a

    Download Submit

  • /data/data/com.park.walnut/app_DynamicOptDex/oat/oGb.json.cur.prof
    Filesize

    160B

    MD5

    d95a3d57ca8f634a82992ec4c01dd032

    SHA1

    1c63fb19b24cdb7f6437d892a51e85832a56daa5

    SHA256

    6cc540dce45c34bf4aea4649f9c9ac957135cf32409d50895b7f066cd86b9a0a

    SHA512

    a96fe0cba3355314c82ed793fd9123396452d0a52716f15be3836d81e7ef11ddfabfe9e8298d043b02dfa7136bc76ad35541f9d142801d91c0c5aeef03157c91

    Download Submit

  • /data/user/0/com.park.walnut/app_DynamicOptDex/oGb.json
    Filesize

    118KB

    MD5

    326780bbd0118c603dab44854bbe91b4

    SHA1

    fb395a47c3e1330a859bf008003cbac5bb00b8f0

    SHA256

    4a84270a1641d6b1ee988fc94c6e00357e7e65bc24b0e7939aeaf9723982a1a9

    SHA512

    140af1d85e99cce86d36d810b188a8a3150a24bedc39df5971cf091ce607e0e242b2caafea7dbee92c6f4a344d27965087ca4f398932c6a2a9f11a6a00754ed2

    Download Submit

  • /data/user/0/com.park.walnut/app_DynamicOptDex/oGb.json
    Filesize

    118KB

    MD5

    e2bfe5100c1fd218fa384ca199d81872

    SHA1

    97742f809762ba16c77fc4671799ca9024001285

    SHA256

    c3994f692d7eb0e7b05d07ecbad1b76b46793fab46efeb379e7e9bc26784a75b

    SHA512

    0b521b809af2e5e1c31e120f69470ec37d9500ff3e9a646da81a686ef996c581abba88376cc50c36004f828fd58d75a3b36cefc9d181a028830ec6cae1e47a0b

    Download Submit