Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/03/2024, 02:02

General

  • Target

    Hunters Cheeto.exe

  • Size

    3.1MB

  • MD5

    7564f035316f6099b1ef442c007fb351

  • SHA1

    6f4530ab0c6d42632a6be94d1d670e0ae5da4f1d

  • SHA256

    f26e49e9ee43830c241200161ca59ddec1ac840745ce73a3d9163c190f41824c

  • SHA512

    23d74bdaab5a8916a7d7f5dd3a95b92774a93897f3be6d7021be92974400cd1c2bea90de3ff258bc9fbef4e6ef261bf79de6cde795f1f86a871c00c5b034f1e9

  • SSDEEP

    49152:rvrI22SsaNYfdPBldt698dBcjHc4mGmzwLoGdhTHHB72eh2NT:rvU22SsaNYfdPBldt6+dBcjHc4mS

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

spoofer

C2

192.168.1.9:4782

47.13.251.179:4782

Mutex

a3394281-6ed5-43a7-afb3-ef307491a25e

Attributes
  • encryption_key

    1D21D2117C53149BFE9297D912388D2A8EE0417B

  • install_name

    Graphics.exe

  • log_directory

    l

  • reconnect_delay

    3000

  • startup_key

    AMD

  • subdirectory

    AMD

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 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\Hunters Cheeto.exe
    "C:\Users\Admin\AppData\Local\Temp\Hunters Cheeto.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "AMD" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\AMD\Graphics.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:2868
    • C:\Users\Admin\AppData\Roaming\AMD\Graphics.exe
      "C:\Users\Admin\AppData\Roaming\AMD\Graphics.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4876
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "AMD" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\AMD\Graphics.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:2016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\AMD\Graphics.exe

    Filesize

    3.1MB

    MD5

    7564f035316f6099b1ef442c007fb351

    SHA1

    6f4530ab0c6d42632a6be94d1d670e0ae5da4f1d

    SHA256

    f26e49e9ee43830c241200161ca59ddec1ac840745ce73a3d9163c190f41824c

    SHA512

    23d74bdaab5a8916a7d7f5dd3a95b92774a93897f3be6d7021be92974400cd1c2bea90de3ff258bc9fbef4e6ef261bf79de6cde795f1f86a871c00c5b034f1e9

  • memory/4876-10-0x00007FFFCCF50000-0x00007FFFCDA11000-memory.dmp

    Filesize

    10.8MB

  • memory/4876-11-0x000000001BC80000-0x000000001BC90000-memory.dmp

    Filesize

    64KB

  • memory/4876-12-0x000000001C3D0000-0x000000001C420000-memory.dmp

    Filesize

    320KB

  • memory/4876-13-0x000000001C4E0000-0x000000001C592000-memory.dmp

    Filesize

    712KB

  • memory/4876-14-0x00007FFFCCF50000-0x00007FFFCDA11000-memory.dmp

    Filesize

    10.8MB

  • memory/5004-0-0x0000000000940000-0x0000000000C64000-memory.dmp

    Filesize

    3.1MB

  • memory/5004-1-0x00007FFFCCF50000-0x00007FFFCDA11000-memory.dmp

    Filesize

    10.8MB

  • memory/5004-2-0x0000000002D50000-0x0000000002D60000-memory.dmp

    Filesize

    64KB

  • memory/5004-9-0x00007FFFCCF50000-0x00007FFFCDA11000-memory.dmp

    Filesize

    10.8MB