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Analysis

  • max time kernel
    150s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    19/03/2023, 08:42

General

  • Target

    Scan_17032023.doc

  • Size

    510.4MB

  • MD5

    ef5b2bbcb1bd8bb27dd0fd1d0794c4e8

  • SHA1

    8c2453f3abb04d27434633d146a463a372468fde

  • SHA256

    91edddb0346f28936ecf7fc31fa3cb51cc2fa12dfbe1d9bdbf61827cf88178ca

  • SHA512

    32cd20e67fa7c39dda6df8d3141bb773cfc4a1a0fe761ad2382b5e07ab72af9908e99fbcf2e3327ee8353fff306987632faab6776dfb1b9912891697e87cc990

  • SSDEEP

    6144:zZRtBPT4N/uQaNULlPUvauNTklB7ShcbYdFf8UOPv:zZvJhfKd2amwYdKUq

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.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Script User-Agent 4 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Scan_17032023.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1608
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1512
      • C:\Windows\SysWOW64\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\094327.tmp"
        2⤵
        • Process spawned unexpected child process
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1364
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Users\Admin\AppData\Local\Temp\094327.tmp"
          3⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:676
          • C:\Windows\system32\regsvr32.exe
            C:\Windows\system32\regsvr32.exe "C:\Windows\system32\ZEmKpaSKtoLZhIyK\EBkKFBlA.dll"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:976

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\094327.tmp

      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      1006b1f31872c2b6dc43950bed456063

      SHA1

      1125412474817c0b779e5de671aa1a7610bd5788

      SHA256

      8ac6bd3f38f66962d50d322b1f4018f138ee59cd612bfeb03079f64efd8f1e03

      SHA512

      12e53847c126070b80a82220063abcf005969c33bbd177dbc37e1cc8e241b00624d2772c9edf38f2549de5ef5bbf21ecf02dfa56160eab812b77db8270bcc394

    • \Users\Admin\AppData\Local\Temp\094327.tmp

      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • \Users\Admin\AppData\Local\Temp\094327.tmp

      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • memory/676-1055-0x00000000001A0000-0x00000000001A1000-memory.dmp

      Filesize

      4KB

    • memory/1608-77-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-73-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-60-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-61-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-62-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-58-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-63-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-64-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-65-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-66-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-67-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-68-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-70-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-82-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-72-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-81-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-69-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-75-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-76-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1608-78-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-74-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-59-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-80-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-71-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-83-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-79-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-84-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-85-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-87-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-86-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-88-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-90-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-91-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-89-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-92-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-94-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-95-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-97-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-96-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-93-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-98-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-99-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-100-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB

    • memory/1608-101-0x00000000004E0000-0x00000000005E0000-memory.dmp

      Filesize

      1024KB