Analysis

  • max time kernel
    103s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    21-06-2021 13:00

General

  • Target

    certificate.06.21.doc

  • Size

    50KB

  • MD5

    778c7f21764d2fc338a5abfa2becfb35

  • SHA1

    39dfa04561018e6dc4590bb6530ca2b2d5351183

  • SHA256

    cc70447b7be5068a55ad34baa92ebd524a00e0a4a210b69fa16d4bf84f48e239

  • SHA512

    2f3c868240b63c3e179006c9919e91f1330fc9e6bfc06e65d2484e2e10418d3dd3094c903747cfe5e2035b31850059c5bb046f8791554341fe29756b68fa8d6a

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Program crash 2 IoCs
  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 24 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\certificate.06.21.doc" /o ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3176
    • C:\Windows\explorer.exe
      explorer c:\programdata\vbaQueryCount.hta
      2⤵
      • Process spawned unexpected child process
      PID:2088
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1256
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\ProgramData\vbaQueryCount.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
      2⤵
        PID:2428
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 1360
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2472
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 1632
          3⤵
          • Suspicious use of NtCreateProcessExOtherParentProcess
          • Program crash
          PID:2988

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\vbaQueryCount.hta
      MD5

      8333d57a044a01797f6e120b4c1b1dc2

      SHA1

      e726e247c84dda75df1963d5899c22093291062c

      SHA256

      dddcc267ce697c5ec06aacdaf884d2eced853e987aef4767472d491db9903258

      SHA512

      af1223a529ff5bea9c4ff18068aa83cb55e0b6fea2076672cbd8e6c633ebe76e3fd75b1275710eaf36e3991916645b3b4b3f5877f88dae339ec1a60923b26393

    • memory/2088-179-0x0000000000000000-mapping.dmp
    • memory/2428-181-0x0000000000000000-mapping.dmp
    • memory/3176-114-0x00007FF800890000-0x00007FF8008A0000-memory.dmp
      Filesize

      64KB

    • memory/3176-115-0x00007FF800890000-0x00007FF8008A0000-memory.dmp
      Filesize

      64KB

    • memory/3176-116-0x00007FF800890000-0x00007FF8008A0000-memory.dmp
      Filesize

      64KB

    • memory/3176-117-0x00007FF800890000-0x00007FF8008A0000-memory.dmp
      Filesize

      64KB

    • memory/3176-119-0x00007FF800890000-0x00007FF8008A0000-memory.dmp
      Filesize

      64KB

    • memory/3176-118-0x00007FF821D40000-0x00007FF824863000-memory.dmp
      Filesize

      43.1MB

    • memory/3176-122-0x00007FF81C2B0000-0x00007FF81D39E000-memory.dmp
      Filesize

      16.9MB

    • memory/3176-123-0x00007FF81A3B0000-0x00007FF81C2A5000-memory.dmp
      Filesize

      31.0MB