Analysis

  • max time kernel
    91s
  • max time network
    92s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    15-12-2024 20:40

General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    8152b58d673e401055d6aea447b6bab8

  • SHA1

    4de077751ceb052f7d0a08b0b60c7db31cc32df4

  • SHA256

    b40ab88284056dea6bd46ad04b674f48d67fc7cdd00f3e89dcfa225d233ab3bd

  • SHA512

    4eb3924d002b2ca1070ba2256177c38614b531207136561aa56948b776d61acae695e91ce6d8b967003a328ab1933438c55627ec21df77de8f3216b7044e4075

  • SSDEEP

    49152:rvWI22SsaNYfdPBldt698dBcjHBCz1JjLoGdKuTHHB72eh2NT:rv722SsaNYfdPBldt6+dBcjHBCDa

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

KDOTCrypt

C2

159.203.126.35:22653

Mutex

417ef71d-ad1d-49a7-bc17-ae3b952a30dc

Attributes
  • encryption_key

    92470F4731518ABFA77DC89068544FB7E7B7C459

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5072

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/5072-0-0x00007FF89FD53000-0x00007FF89FD55000-memory.dmp

    Filesize

    8KB

  • memory/5072-1-0x0000000000950000-0x0000000000C74000-memory.dmp

    Filesize

    3.1MB

  • memory/5072-2-0x00007FF89FD50000-0x00007FF8A0812000-memory.dmp

    Filesize

    10.8MB

  • memory/5072-3-0x000000001DDC0000-0x000000001DE10000-memory.dmp

    Filesize

    320KB

  • memory/5072-4-0x000000001DED0000-0x000000001DF82000-memory.dmp

    Filesize

    712KB

  • memory/5072-5-0x000000001DD70000-0x000000001DD82000-memory.dmp

    Filesize

    72KB

  • memory/5072-6-0x000000001DE50000-0x000000001DE8C000-memory.dmp

    Filesize

    240KB

  • memory/5072-7-0x00007FF89FD53000-0x00007FF89FD55000-memory.dmp

    Filesize

    8KB

  • memory/5072-8-0x00007FF89FD50000-0x00007FF8A0812000-memory.dmp

    Filesize

    10.8MB