Resubmissions

09-03-2023 11:31

230309-nmvnmscb23 8

09-03-2023 11:26

230309-nj43xaba6x 10

Analysis

  • max time kernel
    103s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    09-03-2023 11:31

General

  • Target

    form.doc

  • Size

    517.4MB

  • MD5

    4e607710b49e7af26a7af785b3ec8469

  • SHA1

    037609b372c246ef59fbc8943e38dad8ba2edda9

  • SHA256

    5ad62d5acf965029c502414f255ef06b4ef3d7ba8f650ad209d12fb0e7e6888b

  • SHA512

    ea7120f36dcc8a46818b65546de080d0bd07b813a950d238df97f6c01119d1b5a16f46d01f0ee0c99ca153b941abbcf8659f51e96900522a9761a552995f4dd1

  • SSDEEP

    6144:ogJI9kbGiyDlVYoD2qe2qBgYZDyc+1Jg+CHf8biy/xllXQQgI2V:suyvDlGoUXZDyc0HCHf2Jxpg

Score
4/10

Malware Config

Signatures

  • 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 6 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 4 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\form.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:1964
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1956

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      20KB

      MD5

      e86b0bdc1fee282f40e61df28aa77038

      SHA1

      2b6637f4d55e6488382c631213d67ea10320d151

      SHA256

      9d4d95369d216e67c0e2acb6857a87adf1f737a6e79420742fd0ce7138f8d6af

      SHA512

      b78642db5138020c12eb48973ef59428820d774b40fa35f6ba7f9ab37a9563b6df4233c948eefaa35c3f0823c48dfa8fd2b06a610bcee2dce03f1fd82139e0e1

    • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex
      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/1964-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1964-57-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-58-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-59-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-60-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-61-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-62-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-63-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-64-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-65-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-66-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-67-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-69-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-68-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-70-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-74-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-75-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-76-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-77-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-78-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-83-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-84-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-85-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-86-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-87-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-89-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-92-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-93-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-95-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-96-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-94-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-98-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-101-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-104-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-105-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-106-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-107-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-109-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-111-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-114-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-115-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-113-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-116-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-118-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-119-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-117-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-112-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-110-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-108-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-103-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-102-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-100-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-99-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-97-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-91-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-90-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-88-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-82-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-81-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-80-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-79-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-73-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-72-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB

    • memory/1964-71-0x0000000000680000-0x0000000000780000-memory.dmp
      Filesize

      1024KB