Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2022 21:32

General

  • Target

    7093096a671541f8c8c27d40dddb3879.exe

  • Size

    124KB

  • MD5

    7093096a671541f8c8c27d40dddb3879

  • SHA1

    c799d7eca8154f510472e1dc1e97c0b64da8843e

  • SHA256

    de994811d16c3b1e39850858a8b39dcdf404fd08caae1cf45cc44128c8d62203

  • SHA512

    72a1965c961b0f17f9f5d2aec23bc470e9850761486697eed895a461e0f896ebdc8a0352ef8f64e7d5914e5d7230bb616db78a363a9e80f07e43626adcd7c6b0

  • SSDEEP

    3072:c1i/NU8bOMYcYYcmy5cU+gTn6HOjDhWrzvvQwlgOks5YmMOMYcYY51i/NU8F:Ki/NjO5YBgegD0PHzSv3Oai/NN

Score
8/10

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 37 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs
  • Views/modifies file attributes 1 TTPs 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7093096a671541f8c8c27d40dddb3879.exe
    "C:\Users\Admin\AppData\Local\Temp\7093096a671541f8c8c27d40dddb3879.exe"
    1⤵
    • Modifies Installed Components in the registry
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Program Files\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.212ok.com/Gbook.asp?qita
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1924
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1924 CREDAT:17410 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:4224
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://www.ymtuku.com/xg/?tan
      2⤵
      • Modifies Internet Explorer settings
      PID:4776
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\All Users\桌面\Internet Explorer.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4412
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\All Users\桌面\Internet Explorer.lnk"
        3⤵
        • Views/modifies file attributes
        PID:2064
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\桌面\Internet Explorer.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3552
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\桌面\Internet Explorer.lnk"
        3⤵
        • Views/modifies file attributes
        PID:2756
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4704
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk"
        3⤵
        • Views/modifies file attributes
        PID:5044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4584
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\Application Data\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.lnk"
        3⤵
        • Views/modifies file attributes
        PID:4836
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\Documents and Settings\Admin\「开始」菜单\程序\Internet Explorer.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3892
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\Documents and Settings\Admin\「开始」菜单\程序\Internet Explorer.lnk"
        3⤵
        • Views/modifies file attributes
        PID:2520
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "C:\WINDOWS\windows.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3120
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "C:\WINDOWS\windows.exe"
        3⤵
        • Drops file in Windows directory
        • Views/modifies file attributes
        PID:3688
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c attrib +h "c:\system.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3332
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h "c:\system.exe"
        3⤵
        • Views/modifies file attributes
        PID:4612

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\WINDOWS\windows.exe

    Filesize

    124KB

    MD5

    7a41d5a2fc1fec2308e8dbec213cd107

    SHA1

    df8fc0b2eb41ed809183d6a901972d8fbf1b7c2f

    SHA256

    a7dc031e3080b7c70e4985dfe60e619373e48b6b4e1fc6002009c2377dfaa5b8

    SHA512

    1e3112aeaee667df99206c3237e5eaa900c27b0574089553c7240bbac7054487fbff2a12c331c14ff02d85dabdcbadc5ea67b73a9d83d2bbdb4fd5ddf8fb6f16

  • C:\system.exe

    Filesize

    124KB

    MD5

    deb8fd0b235e0249c595d8536de48bc1

    SHA1

    46388034ef2f238fb7bed79dc38c2cdc5e853ec4

    SHA256

    1edef110f51bc82ce6eb464cb35c403724982df3dc6ec73807d0d27c3cb6d54d

    SHA512

    e819df0c24dfc484b2b69a6766d82a54b35d0b54bd3006becf6158d900c586066a5dcdec207e73896f9cfa4ffe4ab95ca8f3228bcece2081404c4d6f115ad716