Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 02:26

General

  • Target

    41bd24fe8b67e9e3cd5bb272a07640de345c39f6cb6c4057491838de95dac6d7.exe

  • Size

    3.1MB

  • MD5

    cf049d1ba0fceeb5348f71e15889fbc4

  • SHA1

    94cc88586240456f777aed403d955027555db8d1

  • SHA256

    41bd24fe8b67e9e3cd5bb272a07640de345c39f6cb6c4057491838de95dac6d7

  • SHA512

    2e7a7d3415164cb453193fdceef02d46c35f9103521b33bc424c9b79659fac2e4b9deb0fe8754f0842546b51403181032b6c7a05116adfc4f2b8fd599c3ad6ed

  • SSDEEP

    49152:avelL26AaNeWgPhlmVqvMQ7XSKIxOEMkek/JxwoGdeTHHB72eh2NT:avOL26AaNeWgPhlmVqkQ7XSKIxty

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

RAT 5 (EPIC VERISON)

C2

serveo.net:11453

Mutex

7a1301f7-dc6f-4847-a8ee-ca627a9efa0f

Attributes
  • encryption_key

    3B793156AD6D884F51309D0E992DAA75D03D2783

  • install_name

    Application Frame Host.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Microsoft

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\41bd24fe8b67e9e3cd5bb272a07640de345c39f6cb6c4057491838de95dac6d7.exe
    "C:\Users\Admin\AppData\Local\Temp\41bd24fe8b67e9e3cd5bb272a07640de345c39f6cb6c4057491838de95dac6d7.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Microsoft" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Application Frame Host.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2552
    • C:\Users\Admin\AppData\Roaming\SubDir\Application Frame Host.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Application Frame Host.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4748
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "Microsoft" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Application Frame Host.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4408

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\SubDir\Application Frame Host.exe

    Filesize

    3.1MB

    MD5

    cf049d1ba0fceeb5348f71e15889fbc4

    SHA1

    94cc88586240456f777aed403d955027555db8d1

    SHA256

    41bd24fe8b67e9e3cd5bb272a07640de345c39f6cb6c4057491838de95dac6d7

    SHA512

    2e7a7d3415164cb453193fdceef02d46c35f9103521b33bc424c9b79659fac2e4b9deb0fe8754f0842546b51403181032b6c7a05116adfc4f2b8fd599c3ad6ed

  • memory/1280-0-0x00007FFB25BC3000-0x00007FFB25BC5000-memory.dmp

    Filesize

    8KB

  • memory/1280-1-0x0000000000010000-0x0000000000334000-memory.dmp

    Filesize

    3.1MB

  • memory/1280-2-0x00007FFB25BC0000-0x00007FFB26681000-memory.dmp

    Filesize

    10.8MB

  • memory/1280-10-0x00007FFB25BC0000-0x00007FFB26681000-memory.dmp

    Filesize

    10.8MB

  • memory/4748-9-0x00007FFB25BC0000-0x00007FFB26681000-memory.dmp

    Filesize

    10.8MB

  • memory/4748-11-0x00007FFB25BC0000-0x00007FFB26681000-memory.dmp

    Filesize

    10.8MB

  • memory/4748-12-0x000000001B420000-0x000000001B470000-memory.dmp

    Filesize

    320KB

  • memory/4748-13-0x000000001BC80000-0x000000001BD32000-memory.dmp

    Filesize

    712KB

  • memory/4748-14-0x00007FFB25BC0000-0x00007FFB26681000-memory.dmp

    Filesize

    10.8MB