Analysis

  • max time kernel
    189s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-06-2024 22:58

General

  • Target

    gold.exe

  • Size

    342KB

  • MD5

    b769a45330b8bb61879f95faab68a297

  • SHA1

    085bab79dba61f06651d9904a0966059678f7abb

  • SHA256

    c18119713c678bbea78db54da4099ec7c5ff05e06b9c2904f08e9a2bca0219aa

  • SHA512

    2841523621dfc463d6256fc6b91daec3861d61e8122b8b912c0da4642d721ad34aca6a8dce8deabcf46d3bfc7f31ceca7bef743ecfe4ea1b0378c28f6b8ca30d

  • SSDEEP

    6144:fsBkCMuffjLfszRU97qtC9iSxHdP5wpSga10RMm5agGUn4lshyfS0W6yVqtAknTv:fsBkhuHjLEz6JifSJdP5wp/a1KvGkNhY

Score
10/10

Malware Config

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Executes dropped EXE 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.

  • Drops file in Program Files directory 4 IoCs
  • Scheduled Task/Job: Scheduled Task 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\gold.exe
    "C:\Users\Admin\AppData\Local\Temp\gold.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4220
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Steam" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\gold.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2500
    • C:\Program Files (x86)\SubDir\Client.exe
      "C:\Program Files (x86)\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4244
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "Steam" /sc ONLOGON /tr "C:\Program Files (x86)\SubDir\Client.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\SubDir\Client.exe

    Filesize

    342KB

    MD5

    b769a45330b8bb61879f95faab68a297

    SHA1

    085bab79dba61f06651d9904a0966059678f7abb

    SHA256

    c18119713c678bbea78db54da4099ec7c5ff05e06b9c2904f08e9a2bca0219aa

    SHA512

    2841523621dfc463d6256fc6b91daec3861d61e8122b8b912c0da4642d721ad34aca6a8dce8deabcf46d3bfc7f31ceca7bef743ecfe4ea1b0378c28f6b8ca30d

  • memory/4220-0-0x00007FFBA4EC3000-0x00007FFBA4EC5000-memory.dmp

    Filesize

    8KB

  • memory/4220-1-0x00000000006F0000-0x00000000006F8000-memory.dmp

    Filesize

    32KB

  • memory/4220-2-0x0000000002890000-0x000000000292E000-memory.dmp

    Filesize

    632KB

  • memory/4220-3-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp

    Filesize

    10.8MB

  • memory/4220-4-0x0000000001030000-0x0000000001042000-memory.dmp

    Filesize

    72KB

  • memory/4220-5-0x0000000002930000-0x000000000296C000-memory.dmp

    Filesize

    240KB

  • memory/4220-13-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp

    Filesize

    10.8MB

  • memory/4244-12-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp

    Filesize

    10.8MB

  • memory/4244-14-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp

    Filesize

    10.8MB

  • memory/4244-16-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp

    Filesize

    10.8MB

  • memory/4244-17-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp

    Filesize

    10.8MB