Analysis

  • max time kernel
    145s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    19-03-2023 13:13

General

  • Target

    list_1803.doc

  • Size

    527.4MB

  • MD5

    ae21f27b6e41a674d489576dac5115fe

  • SHA1

    b5a54e3fd19a2cccb4ea62d69ec3a660b61049c8

  • SHA256

    431204813820187586523a79b84c9322cb98eefdd56bda00891303ce97df332b

  • SHA512

    f96a418d8729ddfd8ef922cea6f54a87c15fd737b055910089ee18877cfc1d396905e48cd76d8df70aa1ce0c2ac64c455c702754258ea58c508d866f392f51a4

  • 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\list_1803.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:2000
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:688
      • C:\Windows\SysWOW64\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\141504.tmp"
        2⤵
        • Process spawned unexpected child process
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1524
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Users\Admin\AppData\Local\Temp\141504.tmp"
          3⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1152
          • C:\Windows\system32\regsvr32.exe
            C:\Windows\system32\regsvr32.exe "C:\Windows\system32\ZJtfJeHj\feLsShuFyvmtpAZ.dll"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1276

    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\141504.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

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

      20KB

      MD5

      cbee9f126481f49ebf21609b2bf5d404

      SHA1

      b4b933c98162400955d6c262df33e652fc02e0ef

      SHA256

      1add30fc98b160954b7903254a57c577636785dd2c9fe3388c5a6a75a80f9b42

      SHA512

      9271872b502c9288c976ff732a0fab388969837fe494f0952fb0a1702a5765090990c8121c1f4ed56d340550ad18245f6f376db9790e1266a6f59baeb03fb6c6

    • \Users\Admin\AppData\Local\Temp\141504.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • \Users\Admin\AppData\Local\Temp\141504.tmp
      Filesize

      561KB

      MD5

      c901c8089c5e017f8e9b4b15c8ef154f

      SHA1

      336c2bea43bfa2e8afd27a164dba640f36c0013c

      SHA256

      fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

      SHA512

      9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

    • memory/1152-1055-0x0000000000120000-0x0000000000121000-memory.dmp
      Filesize

      4KB

    • memory/2000-76-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-100-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-59-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-79-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-61-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-62-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-63-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-65-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-64-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-66-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-67-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-68-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-69-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-71-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-70-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-72-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-73-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-81-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-75-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/2000-78-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-77-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-60-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-58-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-74-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-82-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-83-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-84-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-85-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-86-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-87-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-88-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-89-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-90-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-91-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-92-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-93-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-95-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-94-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-96-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-98-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-97-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-99-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-80-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB

    • memory/2000-101-0x0000000000490000-0x0000000000590000-memory.dmp
      Filesize

      1024KB