Analysis

  • max time kernel
    63s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    08/03/2023, 13:07

General

  • Target

    INVOICE 589 03_23.doc

  • Size

    526.2MB

  • MD5

    b59808aba76dd0095aa06133382de9ed

  • SHA1

    59aed06213b305d2877031e8ef489064ef74ca74

  • SHA256

    2e116e6a43dcc2ee55df34664a7d5bfae36918f3a8ce5af97be6cb99e3a4de5b

  • SHA512

    134c7c9929c277a3ec0403c2246214059d107c78c0056f8190218e0d16ded3cfaa7a4682d695f9e6212c66220cb222589c8fcd19f6ea70a00994eb06eec6566b

  • SSDEEP

    3072:eoEW2aOtFjH0lP2IpjctfRcVVwEi/A8NVM1wIOCbX6bYLjWFJuvx7ueK6:ZE1aOtFa2I9c3aVw4zwxCbJ4Jup

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.

  • 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 1 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 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\INVOICE 589 03_23.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:1368
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\140822.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1520
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Local\Temp\140822.tmp"
        3⤵
        • Loads dropped DLL
        PID:1104
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:296

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\140822.tmp

            Filesize

            305.9MB

            MD5

            9956006cf6421d0dbbc7d62657a65b86

            SHA1

            bb373792afea7b4846992561667b66175efd9b2d

            SHA256

            a7267626ac3c1fc0873f28cf0f62413b35822c864644fea8e44f990dd0db72ee

            SHA512

            03fb983ce7f504fafc2a6e5159e2f1978903caad59bca6d7c4533994263a8987bf7d69f530eec6bba3b56c74d0f128af956366321f7e7d5249b9df4e6e921e7d

          • C:\Users\Admin\AppData\Local\Temp\140854.zip

            Filesize

            867KB

            MD5

            c121ad92f60903604f8258ea6dd2793a

            SHA1

            47fd247733f97b3c745a347b7ccdacd9626fc4a7

            SHA256

            f9445f70a257ba851470c141a890d5894550a8243eed0cebc7eb6337ad8f6a39

            SHA512

            5d247b317f679528f50eeb96fc124dd0eb7e18cc5a9f72984110c264f49d25ede95b883d8a1b09592106aa4b59ff73f1d4b56432f380e9eca4622dca535a64a3

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

            Filesize

            20KB

            MD5

            5a500354c6f996838ec2cbf1663b1b51

            SHA1

            12762577b123ec2ad03b96a39d58363e98b63bf1

            SHA256

            db40ea3055ea7ec3ad61625e774b359ab3be53a73e54430093817517a7d9c03c

            SHA512

            c9417859e7783db8ef05a6398a795b0a878b166424479775c1c6f841df24ed1b56f545800d3d10efd62b2c1faf121f71d505759b565379cc2bd529f061517d24

          • \Users\Admin\AppData\Local\Temp\140822.tmp

            Filesize

            305.3MB

            MD5

            70c83b67890b09227d5e26183b19923f

            SHA1

            15f8cd3d41035eae62b9909d9de911237d2da5e0

            SHA256

            95f8de9c3c6210109fadc2a96cad65a82ec4fcaade9817287a42b133359ee822

            SHA512

            6394cdde717f2398d3573e160d860cdebd7e5423b49d2ed5b3ed770270a3c5535f2b31256ee7046b97da21f5cef2faf036e68603239137cff1aa79be14dedd2b

          • \Users\Admin\AppData\Local\Temp\140822.tmp

            Filesize

            423.3MB

            MD5

            885c7cd963f3fa79856b2355272d6f09

            SHA1

            b9ace1b14d641388d83b9b534a1da37f38f5af39

            SHA256

            2184d949c91696315a8a9f9ad852dd6d21541ad7e13f258a50000729ebe507a0

            SHA512

            664faef2aebf62f5004092fee421ee419c695e3890db6326d2af34d71d44f46f61d301deba46532d7d82d724baed5163ab4c76ef589cbbeef36f756cff5a833a

          • memory/1368-73-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-76-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-63-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-64-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-65-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-67-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-66-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-69-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-68-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-71-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-70-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-72-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-74-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/1368-75-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-62-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-77-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-78-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-79-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-80-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-81-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-82-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-83-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-84-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-91-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-111-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-61-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-58-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-60-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-59-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB

          • memory/1368-57-0x0000000000700000-0x0000000000800000-memory.dmp

            Filesize

            1024KB