Analysis

  • max time kernel
    129s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-08-2023 14:45

General

  • Target

    CsGoCheats.exe

  • Size

    3.3MB

  • MD5

    d31c6a4a86b2c01d7c6f3bbf0f2773cb

  • SHA1

    b8d2287930ff0ebfc7b857c993c1fc0102a925db

  • SHA256

    417099ab2a4161b7d39e0657ea0dcd5b15e90111bedf13f3442fbb2efd708f12

  • SHA512

    3481b0fc96e319e7ef431a3e161fe5e094c74e7fa31532d3fde5d581d1754796571bbc056f4ed504f5490ccde5fec333a7ed09a56be0f551369c9c1904b28962

  • SSDEEP

    98304:lvg62XlaSFNWPjljiFXRoUYI/MQH+eVl:J4ZYIH+I

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Cheats

C2

185.38.142.185:3138

Mutex

27629fb0-eb8d-4d40-971d-ac7640df2bb4

Attributes
  • encryption_key

    87878A8B39F0E68E388682CADE478983AEB7449F

  • install_name

    ModmenuCSGO.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    RamAnoT

  • subdirectory

    CSGO

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 2 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 FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CsGoCheats.exe
    "C:\Users\Admin\AppData\Local\Temp\CsGoCheats.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4568
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "RamAnoT" /sc ONLOGON /tr "C:\Program Files\CSGO\ModmenuCSGO.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:4976
    • C:\Program Files\CSGO\ModmenuCSGO.exe
      "C:\Program Files\CSGO\ModmenuCSGO.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1180
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "RamAnoT" /sc ONLOGON /tr "C:\Program Files\CSGO\ModmenuCSGO.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:1640

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Replay Monitor

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Downloads

  • C:\Program Files\CSGO\ModmenuCSGO.exe
    Filesize

    3.3MB

    MD5

    d31c6a4a86b2c01d7c6f3bbf0f2773cb

    SHA1

    b8d2287930ff0ebfc7b857c993c1fc0102a925db

    SHA256

    417099ab2a4161b7d39e0657ea0dcd5b15e90111bedf13f3442fbb2efd708f12

    SHA512

    3481b0fc96e319e7ef431a3e161fe5e094c74e7fa31532d3fde5d581d1754796571bbc056f4ed504f5490ccde5fec333a7ed09a56be0f551369c9c1904b28962

  • C:\Program Files\CSGO\ModmenuCSGO.exe
    Filesize

    3.3MB

    MD5

    d31c6a4a86b2c01d7c6f3bbf0f2773cb

    SHA1

    b8d2287930ff0ebfc7b857c993c1fc0102a925db

    SHA256

    417099ab2a4161b7d39e0657ea0dcd5b15e90111bedf13f3442fbb2efd708f12

    SHA512

    3481b0fc96e319e7ef431a3e161fe5e094c74e7fa31532d3fde5d581d1754796571bbc056f4ed504f5490ccde5fec333a7ed09a56be0f551369c9c1904b28962

  • memory/1180-142-0x00007FFDBF660000-0x00007FFDC0121000-memory.dmp
    Filesize

    10.8MB

  • memory/1180-143-0x000000001BB90000-0x000000001BBA0000-memory.dmp
    Filesize

    64KB

  • memory/1180-144-0x000000001B930000-0x000000001B980000-memory.dmp
    Filesize

    320KB

  • memory/1180-145-0x000000001C290000-0x000000001C342000-memory.dmp
    Filesize

    712KB

  • memory/1180-146-0x00007FFDBF660000-0x00007FFDC0121000-memory.dmp
    Filesize

    10.8MB

  • memory/1180-147-0x000000001BB90000-0x000000001BBA0000-memory.dmp
    Filesize

    64KB

  • memory/4568-133-0x0000000000410000-0x000000000075C000-memory.dmp
    Filesize

    3.3MB

  • memory/4568-134-0x00007FFDBF660000-0x00007FFDC0121000-memory.dmp
    Filesize

    10.8MB

  • memory/4568-135-0x000000001B350000-0x000000001B360000-memory.dmp
    Filesize

    64KB

  • memory/4568-141-0x00007FFDBF660000-0x00007FFDC0121000-memory.dmp
    Filesize

    10.8MB