Analysis

  • max time kernel
    116s
  • max time network
    90s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    09/03/2023, 01:42

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 behavior: EnumeratesProcesses 1 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\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\024339.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:732
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Users\Admin\AppData\Local\Temp\024339.tmp"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1828
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\PmdHlfAJPO\nBvZEFePnA.dll"
          4⤵
            PID:844
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:1532

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\024339.tmp

              Filesize

              516.7MB

              MD5

              d74533afc5d3ef85a9f2880f85fec4bd

              SHA1

              d7fd1a96fbd90c9d018738355a1b7825ee3d456e

              SHA256

              d7999362e9a9e140b6d9aa4747e6ed1deb6813bfe33217cd1270e38642f0158a

              SHA512

              303df1407cb2e6ffb87d71121163754833812723f664272ea6909ed7495efe03d1d3ff578da1d203afb3a2f9c771ff66720973942cde2ef223d1cb61e98d580c

            • C:\Users\Admin\AppData\Local\Temp\024349.zip

              Filesize

              840KB

              MD5

              aa663d64a0e1164fd612c1dff38f36d5

              SHA1

              0986063484497cd55c98a3b7f195559d3b111312

              SHA256

              b72374c4d360de02f476a0dac5e490b0fa91a92168e6fa4dc26602f2e6e7b185

              SHA512

              5d340e2b45d07ca88ad92cfdbfbe9f67b6d414f0ee3336b6c501d1d071f9988e209a3bb98fa40f4ab8d81519be61d00447a013211e7f832ebae0027b372023a9

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

              Filesize

              20KB

              MD5

              3a8e95d2be0607e9fde9b215a88dda71

              SHA1

              bfc4de8dd19d02c3bf85882dd1a1fb9f54aa8329

              SHA256

              2c889623344b68a8fc47c28d10dbf68b35d6a22f256dfa2da94a06a2e71e2cef

              SHA512

              ca3a6bf38f54ec4d3965811c30b0d0ac389918a22beaea824fe3697771c86967be0a19b659c1e2f4d67cf21e0d9df7950d0d398659b6747a9c4822ed6a409e19

            • \Users\Admin\AppData\Local\Temp\024339.tmp

              Filesize

              516.7MB

              MD5

              d74533afc5d3ef85a9f2880f85fec4bd

              SHA1

              d7fd1a96fbd90c9d018738355a1b7825ee3d456e

              SHA256

              d7999362e9a9e140b6d9aa4747e6ed1deb6813bfe33217cd1270e38642f0158a

              SHA512

              303df1407cb2e6ffb87d71121163754833812723f664272ea6909ed7495efe03d1d3ff578da1d203afb3a2f9c771ff66720973942cde2ef223d1cb61e98d580c

            • \Users\Admin\AppData\Local\Temp\024339.tmp

              Filesize

              516.7MB

              MD5

              d74533afc5d3ef85a9f2880f85fec4bd

              SHA1

              d7fd1a96fbd90c9d018738355a1b7825ee3d456e

              SHA256

              d7999362e9a9e140b6d9aa4747e6ed1deb6813bfe33217cd1270e38642f0158a

              SHA512

              303df1407cb2e6ffb87d71121163754833812723f664272ea6909ed7495efe03d1d3ff578da1d203afb3a2f9c771ff66720973942cde2ef223d1cb61e98d580c

            • memory/844-849-0x0000000000140000-0x0000000000141000-memory.dmp

              Filesize

              4KB

            • memory/1368-78-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-82-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-68-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-66-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-67-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-70-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-71-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-72-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-73-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-74-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-76-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-77-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

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

              Filesize

              64KB

            • memory/1368-79-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-81-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-64-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-80-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-75-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-83-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-69-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-65-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-62-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-84-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-100-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-111-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-63-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-61-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-60-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-59-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-57-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1368-58-0x0000000000670000-0x0000000000770000-memory.dmp

              Filesize

              1024KB

            • memory/1828-843-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB