Analysis

  • max time kernel
    126s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 21:58

General

  • Target

    5749aacb875ebfba59bf45743ac5cc98a186590956d22c9e8c58c9029791b761.exe

  • Size

    779KB

  • MD5

    5c8e07e7725e48c3c5b5b335f3f0e510

  • SHA1

    c0f6c5240c811b6142d6f15fa3575e14fd671ab4

  • SHA256

    5749aacb875ebfba59bf45743ac5cc98a186590956d22c9e8c58c9029791b761

  • SHA512

    c2e173592e17a139e284cd7529d19e3f8293403dc6e9a050f82db07d676fc6ee7895cbfd245d1ac7d4da9c1a1e339530c27267fea2cd0aa41526cc9be3f856b1

  • SSDEEP

    12288:g72bnI+kL72bnI+kDO472bnI+kL72bnI+kDOaj:g72z072z3472z072z3k

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 3 IoCs
  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Executes dropped EXE 6 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 4 IoCs
  • Modifies registry key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5749aacb875ebfba59bf45743ac5cc98a186590956d22c9e8c58c9029791b761.exe
    "C:\Users\Admin\AppData\Local\Temp\5749aacb875ebfba59bf45743ac5cc98a186590956d22c9e8c58c9029791b761.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Adds Run key to start application
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:2164
    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      C:\Users\Admin\AppData\Local\Temp\avscan.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3772
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4896
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
        3⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:3084
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4140
          • C:\Users\Admin\AppData\Local\Temp\avscan.exe
            C:\Users\Admin\AppData\Local\Temp\avscan.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:4136
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
            5⤵
            • Checks computer location settings
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:4336
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:2364
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
              6⤵
              • Adds policy Run key to start application
              PID:4276
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4132
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3668
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2976
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4060
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
          4⤵
          • Adds policy Run key to start application
          PID:1272
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2028
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4368
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:544
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:2304
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3892
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:3804
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
        3⤵
        • Adds policy Run key to start application
        PID:2552
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1976

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      779KB

      MD5

      88e6640ca497b75e27cf6015dd41692e

      SHA1

      f2708ddc45f2906b56c004fe1fe39cda4731ed7f

      SHA256

      993df807529f1c797830305ba2a83b32fc3f42f585467cbeec570c5bc29bed5a

      SHA512

      176279d279e9794ae4ce02daf0c82a512b892eeb24f97c56dd23b7c90982009f6b0dccbedf73b023be2a475518d25ed5306acf0160de6c22a086f06816f2dd7a

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      779KB

      MD5

      88e6640ca497b75e27cf6015dd41692e

      SHA1

      f2708ddc45f2906b56c004fe1fe39cda4731ed7f

      SHA256

      993df807529f1c797830305ba2a83b32fc3f42f585467cbeec570c5bc29bed5a

      SHA512

      176279d279e9794ae4ce02daf0c82a512b892eeb24f97c56dd23b7c90982009f6b0dccbedf73b023be2a475518d25ed5306acf0160de6c22a086f06816f2dd7a

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      779KB

      MD5

      88e6640ca497b75e27cf6015dd41692e

      SHA1

      f2708ddc45f2906b56c004fe1fe39cda4731ed7f

      SHA256

      993df807529f1c797830305ba2a83b32fc3f42f585467cbeec570c5bc29bed5a

      SHA512

      176279d279e9794ae4ce02daf0c82a512b892eeb24f97c56dd23b7c90982009f6b0dccbedf73b023be2a475518d25ed5306acf0160de6c22a086f06816f2dd7a

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      779KB

      MD5

      88e6640ca497b75e27cf6015dd41692e

      SHA1

      f2708ddc45f2906b56c004fe1fe39cda4731ed7f

      SHA256

      993df807529f1c797830305ba2a83b32fc3f42f585467cbeec570c5bc29bed5a

      SHA512

      176279d279e9794ae4ce02daf0c82a512b892eeb24f97c56dd23b7c90982009f6b0dccbedf73b023be2a475518d25ed5306acf0160de6c22a086f06816f2dd7a

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      0e0483d4802632100b6bfe8bc2e5d661

      SHA1

      767e0deb7dcaa7676004e6053957c36cecfeeefa

      SHA256

      81bbebb8d0e77ffffbc7b7d24afdcdce4089f4b04d1a12284eda861c25e03f9f

      SHA512

      8279b0559ca30a0adc6c8614870c3e445866c20f0617a7153cab41982b451dfe9ea44478f37b884465235714623ef26a56f5ea3d1cb81767487c494d3703ab29

    • C:\Windows\hosts.exe

      Filesize

      779KB

      MD5

      95b02503d63375fec31ba4e38d75a2cc

      SHA1

      3df73cb4c3a137e86d0ecca92a43ee22b6f26df5

      SHA256

      23ead9af9f8949e9abb82ffa731a2b823aef029b4556187c1de53d7fd46e9290

      SHA512

      29b68b29d4ec3ab466d27d0761cfba3c29e3de732398cbc506b8615764cf92e6c1100af817891f216ec2099733d3530fb043cb4f08a4b6206bc565a2e528c8e6

    • C:\Windows\hosts.exe

      Filesize

      779KB

      MD5

      95b02503d63375fec31ba4e38d75a2cc

      SHA1

      3df73cb4c3a137e86d0ecca92a43ee22b6f26df5

      SHA256

      23ead9af9f8949e9abb82ffa731a2b823aef029b4556187c1de53d7fd46e9290

      SHA512

      29b68b29d4ec3ab466d27d0761cfba3c29e3de732398cbc506b8615764cf92e6c1100af817891f216ec2099733d3530fb043cb4f08a4b6206bc565a2e528c8e6

    • C:\Windows\hosts.exe

      Filesize

      779KB

      MD5

      95b02503d63375fec31ba4e38d75a2cc

      SHA1

      3df73cb4c3a137e86d0ecca92a43ee22b6f26df5

      SHA256

      23ead9af9f8949e9abb82ffa731a2b823aef029b4556187c1de53d7fd46e9290

      SHA512

      29b68b29d4ec3ab466d27d0761cfba3c29e3de732398cbc506b8615764cf92e6c1100af817891f216ec2099733d3530fb043cb4f08a4b6206bc565a2e528c8e6

    • C:\Windows\hosts.exe

      Filesize

      779KB

      MD5

      95b02503d63375fec31ba4e38d75a2cc

      SHA1

      3df73cb4c3a137e86d0ecca92a43ee22b6f26df5

      SHA256

      23ead9af9f8949e9abb82ffa731a2b823aef029b4556187c1de53d7fd46e9290

      SHA512

      29b68b29d4ec3ab466d27d0761cfba3c29e3de732398cbc506b8615764cf92e6c1100af817891f216ec2099733d3530fb043cb4f08a4b6206bc565a2e528c8e6

    • C:\windows\hosts.exe

      Filesize

      779KB

      MD5

      95b02503d63375fec31ba4e38d75a2cc

      SHA1

      3df73cb4c3a137e86d0ecca92a43ee22b6f26df5

      SHA256

      23ead9af9f8949e9abb82ffa731a2b823aef029b4556187c1de53d7fd46e9290

      SHA512

      29b68b29d4ec3ab466d27d0761cfba3c29e3de732398cbc506b8615764cf92e6c1100af817891f216ec2099733d3530fb043cb4f08a4b6206bc565a2e528c8e6

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b