Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    22-03-2023 08:43

General

  • Target

    A 2618033.doc

  • Size

    546.3MB

  • MD5

    426605dcab3d0984594354b775aa9906

  • SHA1

    6d6fd88c1ada6675141aa1f41e17db7f2a0bbd3f

  • SHA256

    76bf34f1085973786f6e62ebb0d1aa900519dfe9cd64ee82ebda62ca35bc7080

  • SHA512

    314dd9444d08fcda2fb6d08ef6ce17e98f545ce312470446090101ed17d813bb19ea2e007804235ba708d0b0518a4d8c2b31e9e2b4c816effa9612896f73deb4

  • SSDEEP

    6144:ip32/gDd0Nmt71wFmSWjfDrV8YQnZocbyrX4NqclWL9:ip32SEmtJwFmhjfPtrXqqyW

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\A 2618033.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:1920
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1676
      • C:\Windows\SysWOW64\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\084405.tmp"
        2⤵
        • Process spawned unexpected child process
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:996
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Users\Admin\AppData\Local\Temp\084405.tmp"
          3⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1888
          • C:\Windows\system32\regsvr32.exe
            C:\Windows\system32\regsvr32.exe "C:\Windows\system32\DcxKDdGsSllSvwA\kFKcJ.dll"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1804

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\084405.tmp

      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

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

      Filesize

      20KB

      MD5

      e1883f0417193c900eab05ce87f1f57e

      SHA1

      3a421bd92aedb2cdd19f0c7a294d516aad887933

      SHA256

      6fc41babb6ecc9d9d003fc7852362888272da7043e6825a496cdac4f965b5c2d

      SHA512

      d81068c7e3ee6411cb3dc7185537395dd92993b28bd1b227632dae2fa504d71de08ba02215053585a88268af6a1425ae701ae834f627c517edfe3c805e5f90d2

    • \Users\Admin\AppData\Local\Temp\084405.tmp

      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • \Users\Admin\AppData\Local\Temp\084405.tmp

      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • memory/1888-1450-0x00000000000C0000-0x00000000000C1000-memory.dmp

      Filesize

      4KB

    • memory/1920-81-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-92-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-59-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-60-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-61-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-62-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-64-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-65-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-66-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-67-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-68-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-69-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-70-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-90-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-63-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-72-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-73-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-74-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-75-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-76-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-78-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-77-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-79-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-80-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-83-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-84-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-86-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-85-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-82-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1920-87-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-58-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-71-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-93-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-98-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-97-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-99-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-96-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-103-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-108-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-112-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-115-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-114-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-117-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-116-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-113-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-111-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-110-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-109-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-107-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-106-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-105-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-104-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-102-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-101-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-100-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-118-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-95-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-120-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-94-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-88-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-91-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB

    • memory/1920-89-0x0000000000410000-0x0000000000510000-memory.dmp

      Filesize

      1024KB