Analysis

  • max time kernel
    102s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250313-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/03/2025, 06:13

General

  • Target

    7adc287e958d5eb62246c2714f59cec9.exe

  • Size

    348KB

  • MD5

    7adc287e958d5eb62246c2714f59cec9

  • SHA1

    abb24b0c9e0b20ca97b5280e92a285cc9df2c04c

  • SHA256

    8ae1ebf7431cb437d83619cfb4d991adb87e20f56b20b5e4d0d32e4b219e71c1

  • SHA512

    f2afe3bdd87a1a041fd7763a626d46e1597e1f1965695a9a47e516b7383c17f03881f145981abdbeb62f23b50d6cdf4309d4b8b34a32d7b76653710eb2fcc770

  • SSDEEP

    6144:F2NHXf500Ma2RNib5h7mubW0pFUoIj7FKJ6Qii/G:8d50xKb5pmBpvFKwQiAG

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

5.178.111.227:1604

Mutex

QSR_MUTEX_bpq5GgdeRU1mv1bJt5

Attributes
  • encryption_key

    6GhQeBE4Z58goiq8LNT2

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\7adc287e958d5eb62246c2714f59cec9.exe
    "C:\Users\Admin\AppData\Local\Temp\7adc287e958d5eb62246c2714f59cec9.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:5172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/5172-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/5172-1-0x0000000000FC0000-0x000000000101E000-memory.dmp

    Filesize

    376KB

  • memory/5172-2-0x0000000005FE0000-0x0000000006584000-memory.dmp

    Filesize

    5.6MB

  • memory/5172-3-0x0000000005A30000-0x0000000005AC2000-memory.dmp

    Filesize

    584KB

  • memory/5172-4-0x0000000074DE0000-0x0000000075590000-memory.dmp

    Filesize

    7.7MB

  • memory/5172-5-0x0000000005B10000-0x0000000005B76000-memory.dmp

    Filesize

    408KB

  • memory/5172-6-0x0000000005F80000-0x0000000005F92000-memory.dmp

    Filesize

    72KB

  • memory/5172-7-0x0000000006C70000-0x0000000006CAC000-memory.dmp

    Filesize

    240KB

  • memory/5172-9-0x0000000006FE0000-0x0000000006FEA000-memory.dmp

    Filesize

    40KB

  • memory/5172-10-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/5172-11-0x0000000074DE0000-0x0000000075590000-memory.dmp

    Filesize

    7.7MB