Analysis

  • max time kernel
    147s
  • 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 12:37

General

  • Target

    message 589.doc

  • Size

    546.4MB

  • MD5

    4fe50b64bd6a9fe2a2baaacd7d388b96

  • SHA1

    f9b91b27bf6cd5bf5d71f4fa721b240db6a09380

  • SHA256

    e6e06d8eeddfdb0d2785232274f2548e4a8699043818e1671a4bcdc9fc5cff02

  • SHA512

    a35b2b6d20f3c127b8a912523b3a308fdd3797cbddb0984e18132ac4afc58687898404b0b052057ec9c1d8b1a7c97174fa30d5c276953d3ffb6f69afc4a8e14c

  • SSDEEP

    6144:NeWM86RZzwTFQR9jD77fyO0XwBh12DD2JfCFFyinWLqcRJ:EWnE8FQvTfx0XwBz4D0aFjM

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 1 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\message 589.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:932
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1208
      • C:\Windows\SysWOW64\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\133814.tmp"
        2⤵
        • Process spawned unexpected child process
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1828
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Users\Admin\AppData\Local\Temp\133814.tmp"
          3⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1872
          • C:\Windows\system32\regsvr32.exe
            C:\Windows\system32\regsvr32.exe "C:\Windows\system32\HhNRxAeyHft\kSWdMxsHeIdsQ.dll"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1372

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\133814.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

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

      20KB

      MD5

      8fc4e09ea099031ada3026767752293c

      SHA1

      dc921315183349cc99f2be311fd0b67309ad60db

      SHA256

      e3e160e007040ecbf4de17e6a34d9a6c6d6cbf182fa90f88812bea619b17024b

      SHA512

      938156b394e4aeae179cc9fb48998726ff9f3b235416f8e6e3caec3bef98f22e67f4e0058835182fb313c30a2dc8d437187d0552a8106b26ea75a0d6e445dbf2

    • \Users\Admin\AppData\Local\Temp\133814.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • \Users\Admin\AppData\Local\Temp\133814.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • memory/932-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/932-58-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-59-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-60-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-62-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-61-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-63-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-65-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-66-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-64-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-67-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-69-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-70-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-68-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-71-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-73-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-72-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-75-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-74-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-76-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-77-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-79-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-78-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-81-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-82-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-80-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-83-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-84-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-85-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-87-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-86-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-88-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-89-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-90-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-91-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-92-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-93-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-94-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-95-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-97-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-96-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-98-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-99-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-101-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-100-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-102-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-103-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-104-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-105-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-106-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-107-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-108-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-110-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-109-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-111-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-112-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-113-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-114-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/932-115-0x0000000000530000-0x0000000000630000-memory.dmp
      Filesize

      1024KB

    • memory/1872-1377-0x00000000001A0000-0x00000000001A1000-memory.dmp
      Filesize

      4KB