Analysis

  • max time kernel
    24s
  • max time network
    19s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    05-01-2025 04:46

General

  • Target

    SpoofX.exe

  • Size

    3.1MB

  • MD5

    f6cbf782a601526dc279891b0600d2c8

  • SHA1

    0e561270b8d8fb960cf9bf9f8ddab94517de03ec

  • SHA256

    bd0551475a48100dfd099d8ea6412240c9310438357a671af47e5580d108875e

  • SHA512

    4cc7ace57e510dcbb3019d0f48f9c76f4b2b9a251ce5752e0af5d704bc7ceccbccef770ccc0f3c5188c97045939f6a93d42a3ec5efe17561f3eb1586a22dbdc8

  • SSDEEP

    49152:evBt62XlaSFNWPjljiFa2RoUYIg9zE24Uk/07hoGd8THHB72eh2NT:evr62XlaSFNWPjljiFXRoUYIg9rl

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Svchost.exe

C2

192.168.1.190:4782

Mutex

75ec4d04-9201-465b-9d52-07fbf8901610

Attributes
  • encryption_key

    BC9F0EB6E1FA6B8559DDF8DE0AEF08110EBCF8E5

  • install_name

    Svchostt.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Svchostt.exe

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 5 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\SpoofX.exe
    "C:\Users\Admin\AppData\Local\Temp\SpoofX.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Svchostt.exe" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Svchostt.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3980
    • C:\Windows\system32\SubDir\Svchostt.exe
      "C:\Windows\system32\SubDir\Svchostt.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3596
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "Svchostt.exe" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Svchostt.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:552
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /0
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\System32\SubDir\Svchostt.exe

    Filesize

    3.1MB

    MD5

    f6cbf782a601526dc279891b0600d2c8

    SHA1

    0e561270b8d8fb960cf9bf9f8ddab94517de03ec

    SHA256

    bd0551475a48100dfd099d8ea6412240c9310438357a671af47e5580d108875e

    SHA512

    4cc7ace57e510dcbb3019d0f48f9c76f4b2b9a251ce5752e0af5d704bc7ceccbccef770ccc0f3c5188c97045939f6a93d42a3ec5efe17561f3eb1586a22dbdc8

  • memory/1132-10-0x00007FFF1D2C0000-0x00007FFF1DD82000-memory.dmp

    Filesize

    10.8MB

  • memory/1132-1-0x0000000000660000-0x0000000000984000-memory.dmp

    Filesize

    3.1MB

  • memory/1132-2-0x00007FFF1D2C0000-0x00007FFF1DD82000-memory.dmp

    Filesize

    10.8MB

  • memory/1132-0-0x00007FFF1D2C3000-0x00007FFF1D2C5000-memory.dmp

    Filesize

    8KB

  • memory/2024-15-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-26-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-23-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-24-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-25-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-27-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-17-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-16-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-22-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/2024-21-0x000001D57FB10000-0x000001D57FB11000-memory.dmp

    Filesize

    4KB

  • memory/3596-11-0x00007FFF1D2C0000-0x00007FFF1DD82000-memory.dmp

    Filesize

    10.8MB

  • memory/3596-9-0x00007FFF1D2C0000-0x00007FFF1DD82000-memory.dmp

    Filesize

    10.8MB

  • memory/3596-14-0x00007FFF1D2C0000-0x00007FFF1DD82000-memory.dmp

    Filesize

    10.8MB

  • memory/3596-13-0x000000001C9F0000-0x000000001CAA2000-memory.dmp

    Filesize

    712KB

  • memory/3596-12-0x000000001BC70000-0x000000001BCC0000-memory.dmp

    Filesize

    320KB