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Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    24/08/2024, 17:21

General

  • Target

    3ba0319e73189975e4d8a212772eddc1.exe

  • Size

    3.1MB

  • MD5

    3ba0319e73189975e4d8a212772eddc1

  • SHA1

    935590495562e460c2e028220c583cc93ec97c30

  • SHA256

    59b6f157ec7087a025c17d6beecf7d7f3f49106319fbf05708eef51d79b9eee9

  • SHA512

    1e1e6f1e6da985451d5f148a398ceb1579fa18d4f30fddd2bae20d481268042a2739c8f7475ff3c1f538d8a80a562f121294d582a8185b63255d2883dea64607

  • SSDEEP

    49152:mvBt62XlaSFNWPjljiFa2RoUYImiZFUQmPVoGdGcPGTHHB72eh2NT:mvr62XlaSFNWPjljiFXRoUYImiZFQV

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

45.138.16.215:4782

Mutex

5e9da8c1-b2c5-4ac5-82e5-0040a23e9942

Attributes
  • encryption_key

    2243A5B4C698492DB2EDF4E8400CCBCED4A026A1

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    syshosts

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ba0319e73189975e4d8a212772eddc1.exe
    "C:\Users\Admin\AppData\Local\Temp\3ba0319e73189975e4d8a212772eddc1.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2672

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2672-0-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

    Filesize

    4KB

  • memory/2672-1-0x0000000000F00000-0x0000000001224000-memory.dmp

    Filesize

    3.1MB

  • memory/2672-2-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2672-3-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

    Filesize

    4KB

  • memory/2672-4-0x000007FEF5BD0000-0x000007FEF65BC000-memory.dmp

    Filesize

    9.9MB