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Analysis

  • max time kernel
    155s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 18:21

General

  • Target

    6d6aed52295247e307937da943064d8573c5f974272548b35aa7979497880f89.exe

  • Size

    188KB

  • MD5

    091b857bf7f5ca1c875a68ace871e8c3

  • SHA1

    25e4af8be0e3517371fcfb73e25c78a2c6556287

  • SHA256

    6d6aed52295247e307937da943064d8573c5f974272548b35aa7979497880f89

  • SHA512

    7c8661a36b702cc6f83ee98d3b4bd8043d8d323798d7671d6da37976b879fa5dd8f520452f6b1892791e54776a8e6880cef2904483f7f8d55d5269ff8ff42123

  • SSDEEP

    3072:obpDCw1p3vmLvsZIaVwiwDcIbDHDCm/DER4eQ9nQ1wJ:gDCwfG1bnxLERRa

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\6d6aed52295247e307937da943064d8573c5f974272548b35aa7979497880f89.exe
    "C:\Users\Admin\AppData\Local\Temp\6d6aed52295247e307937da943064d8573c5f974272548b35aa7979497880f89.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:4868
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:2592
    • 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:4932
      • 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:4480
      • 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:696
        • 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:5012
          • 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:912
          • 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:4668
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:1848
            • 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:1436
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4104
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4236
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:444
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2368
        • 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:3332
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4120
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3964
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3252
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4332
    • 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:4224
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1416
      • 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:4448
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2024

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      188KB

      MD5

      99178545d3ff429ff65dfa804297342b

      SHA1

      657418ccbb9bde36672f68101481fc020f18090c

      SHA256

      8eff317830b941df6bef9d74a815581e6d096f4589ea0967a88498843fe1271d

      SHA512

      d8ac96a0c215c43c3e1517f497d6383381c4ea0007ae63e116bcf176841eeabb77fa195604ae4370fefa1419b99267ccb8c716148b8015e3741cb513c107fe02

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

      Filesize

      188KB

      MD5

      99178545d3ff429ff65dfa804297342b

      SHA1

      657418ccbb9bde36672f68101481fc020f18090c

      SHA256

      8eff317830b941df6bef9d74a815581e6d096f4589ea0967a88498843fe1271d

      SHA512

      d8ac96a0c215c43c3e1517f497d6383381c4ea0007ae63e116bcf176841eeabb77fa195604ae4370fefa1419b99267ccb8c716148b8015e3741cb513c107fe02

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

      Filesize

      188KB

      MD5

      99178545d3ff429ff65dfa804297342b

      SHA1

      657418ccbb9bde36672f68101481fc020f18090c

      SHA256

      8eff317830b941df6bef9d74a815581e6d096f4589ea0967a88498843fe1271d

      SHA512

      d8ac96a0c215c43c3e1517f497d6383381c4ea0007ae63e116bcf176841eeabb77fa195604ae4370fefa1419b99267ccb8c716148b8015e3741cb513c107fe02

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

      Filesize

      188KB

      MD5

      99178545d3ff429ff65dfa804297342b

      SHA1

      657418ccbb9bde36672f68101481fc020f18090c

      SHA256

      8eff317830b941df6bef9d74a815581e6d096f4589ea0967a88498843fe1271d

      SHA512

      d8ac96a0c215c43c3e1517f497d6383381c4ea0007ae63e116bcf176841eeabb77fa195604ae4370fefa1419b99267ccb8c716148b8015e3741cb513c107fe02

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      5b87381bf407d7c6018a8b11c3e20f92

      SHA1

      bb61b28d9c8fd7dfeb13a397c49a1be3abc06ca2

      SHA256

      4785d6a229d0872fe90c75ab620de9a680d7f07ccd27a134da2afc4ee88f34f3

      SHA512

      05db1178f671e9d6c3a1c601349093447b04ebddcd071a06f7cc92cbaf7efb53027bc92523a19372a08ca5af715cc9955649255f8be1909b5e594385b3dcbe3d

    • C:\Windows\hosts.exe

      Filesize

      188KB

      MD5

      9c7140830c22e7e22f2bf3c983203593

      SHA1

      b0135c2bafeae7faace7b08a9ca3f7a83adc6c63

      SHA256

      b12dfe99db7779ff0971e16b9c53d8a826d22e4a334e87392276bc5701b190c7

      SHA512

      4c6d349ac80d3f07086398b73ac267cd9349fb19710a7b08c021f8050790e0f0289f4859bd0db462697e3650fa6ea567974c7b169955bbb4691ecf803e167d8c

    • C:\Windows\hosts.exe

      Filesize

      188KB

      MD5

      9c7140830c22e7e22f2bf3c983203593

      SHA1

      b0135c2bafeae7faace7b08a9ca3f7a83adc6c63

      SHA256

      b12dfe99db7779ff0971e16b9c53d8a826d22e4a334e87392276bc5701b190c7

      SHA512

      4c6d349ac80d3f07086398b73ac267cd9349fb19710a7b08c021f8050790e0f0289f4859bd0db462697e3650fa6ea567974c7b169955bbb4691ecf803e167d8c

    • C:\Windows\hosts.exe

      Filesize

      188KB

      MD5

      9c7140830c22e7e22f2bf3c983203593

      SHA1

      b0135c2bafeae7faace7b08a9ca3f7a83adc6c63

      SHA256

      b12dfe99db7779ff0971e16b9c53d8a826d22e4a334e87392276bc5701b190c7

      SHA512

      4c6d349ac80d3f07086398b73ac267cd9349fb19710a7b08c021f8050790e0f0289f4859bd0db462697e3650fa6ea567974c7b169955bbb4691ecf803e167d8c

    • C:\Windows\hosts.exe

      Filesize

      188KB

      MD5

      9c7140830c22e7e22f2bf3c983203593

      SHA1

      b0135c2bafeae7faace7b08a9ca3f7a83adc6c63

      SHA256

      b12dfe99db7779ff0971e16b9c53d8a826d22e4a334e87392276bc5701b190c7

      SHA512

      4c6d349ac80d3f07086398b73ac267cd9349fb19710a7b08c021f8050790e0f0289f4859bd0db462697e3650fa6ea567974c7b169955bbb4691ecf803e167d8c

    • C:\windows\hosts.exe

      Filesize

      188KB

      MD5

      9c7140830c22e7e22f2bf3c983203593

      SHA1

      b0135c2bafeae7faace7b08a9ca3f7a83adc6c63

      SHA256

      b12dfe99db7779ff0971e16b9c53d8a826d22e4a334e87392276bc5701b190c7

      SHA512

      4c6d349ac80d3f07086398b73ac267cd9349fb19710a7b08c021f8050790e0f0289f4859bd0db462697e3650fa6ea567974c7b169955bbb4691ecf803e167d8c

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b