Analysis

  • max time kernel
    102s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    16/03/2023, 16:28

General

  • Target
    협의 이혼 의사 확인 신청서.docm
  • Size 61KB
  • Sample230316-tynx5aeb21
  • SHA256 e8475fe3ac277d2eda466aaa4d42044d7230ac650b62dde38bf9727514c3ad69
  • MD5 SHA1 SHA512 SSDEEP
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.

  • Blocklisted process makes network request 1 IoCs
  • Deletes itself 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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
  • NTFS ADS 1 IoCs
  • Script User-Agent 1 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 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\협의 이혼 의사 확인 신청서.docm"
    1⤵
    • Deletes itself
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1660
    • C:\Windows\system32\wscript.exe
      wscript.exe //e:vbscript //b C:\Users\Admin\AppData\Roaming\Microsoft\Templates\version.ini
      1⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      PID:544

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          협의 이혼 의사 확인 신청서.docm

          • Path C:\Users\Admin\AppData\Local\Temp\협의 이혼 의사 확인 신청서.docm
          • Size 30KB
          • SHA256 6dfad4fc17c3aebb672fa2211049de866db0db0eb31b69fd73e8cb97b7d35912
          • MD5 SHA1 SHA512 SSDEEP

          Normal.dotm

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
          • Size 20KB
          • SHA256 8c0d559ff208cac1f2ea2adf8664cb89121c18e1c1785ad0ca2c94c8b8eb2a1e
          • MD5 SHA1 SHA512 SSDEEP

          version.ini

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\version.ini
          • Size 216B
          • SHA256 753b9b8b17bcbd6ba1d0bb39ab8da32ea6eb9ebdfd6a1ca74d9e585ab230f2f0
          • MD5 SHA1 SHA512

          version.ini

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Templates\version.ini
          • Size 216B
          • SHA256 753b9b8b17bcbd6ba1d0bb39ab8da32ea6eb9ebdfd6a1ca74d9e585ab230f2f0
          • MD5 SHA1 SHA512

          ExcludeDictionaryEN0409.lex

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex
          • Size 2B
          • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
          • MD5 SHA1 SHA512

          memory/2040-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

          memory/2040-86-0x0000000000380000-0x0000000000480000-memory.dmp

          memory/2040-156-0x000000005FFF0000-0x0000000060000000-memory.dmp