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Analysis

  • max time kernel
    49s
  • max time network
    43s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/01/2025, 23:29

General

  • Target

    ligma_menu.exe

  • Size

    3.1MB

  • MD5

    5d585eaddfaddd8dad1d752c0bbaa34a

  • SHA1

    f42906d58c5a404cdc349b7a98c087c1e500b21b

  • SHA256

    b37cf25cf1b1df68f13bba06d62439fde48b2b08156691baf36b1506a6242d0f

  • SHA512

    31705030c280f617ad87087e0aa3079a661bcb74fa7d8f5d93dc3bae2239f1de5f7b2f48dd9f88051695a64673ee09a4d19a7705fe3d3942aa2d46668777bde2

  • SSDEEP

    49152:mvyI22SsaNYfdPBldt698dBcjHdoSgYWboGZ4rTHHB72eh2NT:mvf22SsaNYfdPBldt6+dBcjHdoSgY0

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.1.184:4782

Mutex

3b3d8c23-815f-460c-a0d4-67d49cd2682d

Attributes
  • encryption_key

    1758FB18D23634847927348E0CD6C3963ABFE0AB

  • 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 2 IoCs
  • Executes dropped EXE 1 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 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 40 IoCs
  • Suspicious use of SendNotifyMessage 39 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\ligma_menu.exe
    "C:\Users\Admin\AppData\Local\Temp\ligma_menu.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2192
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4448
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4504
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4416
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2704
    • C:\Users\Admin\AppData\Local\Temp\ligma_menu.exe
      "C:\Users\Admin\AppData\Local\Temp\ligma_menu.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:444

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\ligma_menu.exe.log

      Filesize

      1KB

      MD5

      baf55b95da4a601229647f25dad12878

      SHA1

      abc16954ebfd213733c4493fc1910164d825cac8

      SHA256

      ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

      SHA512

      24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

      Filesize

      3.1MB

      MD5

      5d585eaddfaddd8dad1d752c0bbaa34a

      SHA1

      f42906d58c5a404cdc349b7a98c087c1e500b21b

      SHA256

      b37cf25cf1b1df68f13bba06d62439fde48b2b08156691baf36b1506a6242d0f

      SHA512

      31705030c280f617ad87087e0aa3079a661bcb74fa7d8f5d93dc3bae2239f1de5f7b2f48dd9f88051695a64673ee09a4d19a7705fe3d3942aa2d46668777bde2

    • memory/2004-0-0x00007FFD0BD53000-0x00007FFD0BD55000-memory.dmp

      Filesize

      8KB

    • memory/2004-1-0x0000000000970000-0x0000000000C94000-memory.dmp

      Filesize

      3.1MB

    • memory/2004-2-0x00007FFD0BD50000-0x00007FFD0C811000-memory.dmp

      Filesize

      10.8MB

    • memory/2004-9-0x00007FFD0BD50000-0x00007FFD0C811000-memory.dmp

      Filesize

      10.8MB

    • memory/4416-29-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-28-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-23-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-24-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-26-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-17-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-18-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-19-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-25-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4416-27-0x00000256496F0000-0x00000256496F1000-memory.dmp

      Filesize

      4KB

    • memory/4448-12-0x000000001B2B0000-0x000000001B300000-memory.dmp

      Filesize

      320KB

    • memory/4448-11-0x00007FFD0BD50000-0x00007FFD0C811000-memory.dmp

      Filesize

      10.8MB

    • memory/4448-15-0x00007FFD0BD50000-0x00007FFD0C811000-memory.dmp

      Filesize

      10.8MB

    • memory/4448-14-0x000000001C100000-0x000000001C628000-memory.dmp

      Filesize

      5.2MB

    • memory/4448-13-0x000000001BA10000-0x000000001BAC2000-memory.dmp

      Filesize

      712KB

    • memory/4448-10-0x00007FFD0BD50000-0x00007FFD0C811000-memory.dmp

      Filesize

      10.8MB