Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2024 09:21

General

  • Target

    e07d43bc3ffba13c54c974a3648488d48b6e3a9acd7be11404eb41a8b1452888.exe

  • Size

    409KB

  • MD5

    35e11d4aa9b81511576ac2e01dc91499

  • SHA1

    8591d9f1849994a8fe97a7f01382d78905c5d110

  • SHA256

    e07d43bc3ffba13c54c974a3648488d48b6e3a9acd7be11404eb41a8b1452888

  • SHA512

    97f6e9c3fc5e4333467f8028f4fdf943595d4d681bdcba1fde24f5e9c48d40b5ac6da7488e71fc0e3508f2987ad807dfa85b9ba0eecadde9a669544f7df4b4ed

  • SSDEEP

    6144:mMXOp5F5j+sW/bq2OhCrMEl0oAzbx8J8CG7I0vbIpgBoJwAO0KFiIkvPq8shA8:OpX5j+N/W2OhCrPlKOmCaElr5vPxs+8

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SeroXen | v3.1.5 |

C2

rights-varying.gl.at.ply.gg:55443

rights-varying.gl.at.ply.gg:3348

Mutex

$Sxr-jy6vh8CtEJL5ceZuIb

Attributes
  • encryption_key

    eNywfhYtCnzi04z5iEfk

  • install_name

    $sxr-powershell.exe

  • log_directory

    $sxr-Logs

  • reconnect_delay

    10

  • startup_key

    Powershell

  • subdirectory

    $sxr-seroxen2

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\e07d43bc3ffba13c54c974a3648488d48b6e3a9acd7be11404eb41a8b1452888.exe
    "C:\Users\Admin\AppData\Local\Temp\e07d43bc3ffba13c54c974a3648488d48b6e3a9acd7be11404eb41a8b1452888.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1040

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1040-0-0x000000007423E000-0x000000007423F000-memory.dmp

    Filesize

    4KB

  • memory/1040-1-0x0000000001000000-0x000000000106C000-memory.dmp

    Filesize

    432KB

  • memory/1040-2-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/1040-4-0x000000007423E000-0x000000007423F000-memory.dmp

    Filesize

    4KB

  • memory/1040-5-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB