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Analysis

  • max time kernel
    120s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    27-02-2021 02:23

General

  • Target

    Doc_3744.xls

  • Size

    62KB

  • MD5

    47e22049644647ee854cedfe077156e7

  • SHA1

    20ad9f47616a8272dece2ec1039a88c09412c97c

  • SHA256

    5f2adacaf4ecb00ed24dd9dfe355307d0d6e786e40c945ad4c6d1ae3a4835d2a

  • SHA512

    1eeb87173378f4d0e157ee42f5b28e48ff84a35b44d71f004a6180cc2bdbc09e45c071adc7ab0a94c75071fbe3ee13b939ee8cb216b6f2e06c9c24ca34dbbf1b

Score
1/10

Malware Config

Signatures

  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 49 IoCs
  • Modifies registry class 56 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 34 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Doc_3744.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:4772
  • C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:528
    • C:\Windows\system32\reg.exe
      reg export HKCU c:\users\admin\Documents\1.txt
      2⤵
        PID:2856
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4708
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe"
        2⤵
        • Checks processor information in registry
        PID:232
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="232.0.1484057031\1705473199" -parentBuildID 20200403170909 -prefsHandle 1504 -prefMapHandle 1476 -prefsLen 1 -prefMapSize 219511 -appdir "C:\Program Files\Mozilla Firefox\browser" - 232 "\\.\pipe\gecko-crash-server-pipe.232" 1600 gpu
          3⤵
            PID:4532
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        1⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4264
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4264 CREDAT:82945 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          PID:4136
      • C:\Windows\SysWOW64\DllHost.exe
        C:\Windows\SysWOW64\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
        1⤵
          PID:2308

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4772-2-0x00007FFBC05B0000-0x00007FFBC05C0000-memory.dmp

          Filesize

          64KB

        • memory/4772-6-0x00007FFBC05B0000-0x00007FFBC05C0000-memory.dmp

          Filesize

          64KB

        • memory/4772-5-0x00007FFBE4360000-0x00007FFBE4997000-memory.dmp

          Filesize

          6.2MB

        • memory/4772-4-0x00007FFBC05B0000-0x00007FFBC05C0000-memory.dmp

          Filesize

          64KB

        • memory/4772-3-0x00007FFBC05B0000-0x00007FFBC05C0000-memory.dmp

          Filesize

          64KB