Analysis

  • max time kernel
    1793s
  • max time network
    1799s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-10-2024 19:01

General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    38bc15ae3acbd8e0260c34a7a3df5191

  • SHA1

    51ae6313f5852d0fb128ebe3acd225c686e13df8

  • SHA256

    81a1db18f5163f12087a3b1a6a92feb449b2577fdbb67e6eda3fa645813daa14

  • SHA512

    8669d6d780e3287c9fe646dcea0b7b4a397f9a09acfbb44331e615af81e337aae56e5f355cee90eb30259f409f1f3719963d2b68ff3ae6e0edc46e18494fa28a

  • SSDEEP

    49152:WvWI22SsaNYfdPBldt698dBcjHBLRJ6ObR3LoGdvxTHHB72eh2NT:Wv722SsaNYfdPBldt6+dBcjHBLRJ6I

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

79.16.224.116:4782

Mutex

7ff8c9b6-9b37-4875-9a37-4ba500934af8

Attributes
  • encryption_key

    62BD9AD89C002DC49ECFCB143CD306F73074B7DF

  • 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:3400

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3400-0-0x00007FFF4B663000-0x00007FFF4B665000-memory.dmp

    Filesize

    8KB

  • memory/3400-1-0x0000000000DF0000-0x0000000001114000-memory.dmp

    Filesize

    3.1MB

  • memory/3400-2-0x00007FFF4B660000-0x00007FFF4C121000-memory.dmp

    Filesize

    10.8MB

  • memory/3400-3-0x000000001C0F0000-0x000000001C140000-memory.dmp

    Filesize

    320KB

  • memory/3400-4-0x000000001C200000-0x000000001C2B2000-memory.dmp

    Filesize

    712KB

  • memory/3400-5-0x00007FFF4B663000-0x00007FFF4B665000-memory.dmp

    Filesize

    8KB

  • memory/3400-6-0x00007FFF4B660000-0x00007FFF4C121000-memory.dmp

    Filesize

    10.8MB