Analysis

  • max time kernel
    176s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 06:17

General

  • Target

    a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4.exe

  • Size

    563KB

  • MD5

    9b23a1427cc20b606775c00ab93ff879

  • SHA1

    ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

  • SHA256

    a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

  • SHA512

    e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

  • SSDEEP

    6144:0BaZA6AM5tm1BS4i4jARHKhyFxQZZxbUP10glX1WMYesP9bZGgtCS+in:0cA6SbVi42BFx8dUP1fweshYgtCS+i

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 3 IoCs

    Detects file using ACProtect software.

  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Disables RegEdit via registry modification 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Modifies Windows Firewall 1 TTPs 2 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 6 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
  • Adds Run key to start application 2 TTPs 7 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 8 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 19 IoCs
  • Drops file in Windows directory 14 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 13 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4.exe
    "C:\Users\Admin\AppData\Local\Temp\a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4.exe"
    1⤵
    • Adds policy Run key to start application
    • Disables RegEdit via registry modification
    • Loads dropped DLL
    • Adds Run key to start application
    • Modifies WinLogon
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Windows\SysWOW64\KHATRA.exe
      C:\Windows\system32\KHATRA.exe
      2⤵
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies WinLogon
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:584
      • C:\Windows\Xplorer.exe
        "C:\Windows\Xplorer.exe" /Windows
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1088
        • C:\Windows\System\gHost.exe
          "C:\Windows\System\gHost.exe" /Reproduce
          4⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:1884
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /C AT /delete /yes
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1660
        • C:\Windows\SysWOW64\at.exe
          AT /delete /yes
          4⤵
            PID:1100
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\KHATRA.exe
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1540
          • C:\Windows\SysWOW64\at.exe
            AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\KHATRA.exe
            4⤵
              PID:1744
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /C RegSvr32 /S C:\Windows\system32\avphost.dll
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1008
            • C:\Windows\SysWOW64\regsvr32.exe
              RegSvr32 /S C:\Windows\system32\avphost.dll
              4⤵
              • Loads dropped DLL
              • Modifies registry class
              PID:1428
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /C netsh firewall add allowedprogram program=C:\Windows\system32\KHATRA.exe name=System
            3⤵
              PID:1972
              • C:\Windows\SysWOW64\netsh.exe
                netsh firewall add allowedprogram program=C:\Windows\system32\KHATRA.exe name=System
                4⤵
                • Modifies Windows Firewall
                PID:1588
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /C AT /delete /yes
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1484
            • C:\Windows\SysWOW64\at.exe
              AT /delete /yes
              3⤵
                PID:968
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\KHATRA.exe
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:1692
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /C RegSvr32 /S C:\Windows\system32\avphost.dll
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:1732
              • C:\Windows\SysWOW64\regsvr32.exe
                RegSvr32 /S C:\Windows\system32\avphost.dll
                3⤵
                • Loads dropped DLL
                • Modifies registry class
                PID:1096
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /C netsh firewall add allowedprogram program=C:\Windows\system32\KHATRA.exe name=System
              2⤵
                PID:1376
                • C:\Windows\SysWOW64\netsh.exe
                  netsh firewall add allowedprogram program=C:\Windows\system32\KHATRA.exe name=System
                  3⤵
                  • Modifies Windows Firewall
                  PID:268
            • C:\Windows\SysWOW64\at.exe
              AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\KHATRA.exe
              1⤵
                PID:816
              • C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE
                "C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE" -Embedding
                1⤵
                • Accesses Microsoft Outlook profiles
                • Drops file in System32 directory
                • Drops file in Windows directory
                • Modifies Internet Explorer settings
                • Modifies registry class
                • Suspicious behavior: AddClipboardFormatListener
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                • Suspicious use of SetWindowsHookEx
                • outlook_win_path
                PID:1800

              Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    • C:\Windows\KHATARNAKH.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • C:\Windows\SysWOW64\KHATRA.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • C:\Windows\SysWOW64\KHATRA.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • C:\Windows\SysWOW64\avphost.dll

                      Filesize

                      127KB

                      MD5

                      d47ebd342b6906a2fda10d70560bcd5a

                      SHA1

                      c1b54deb14d47e539bc6aea1464edb38fad4b87f

                      SHA256

                      00a035dd63d4b26ab23ab122899767da8452bf262f61a06f9136513d841feaf2

                      SHA512

                      626b00fb28e2b13b6f8fa393051e07da2eb937a164d87affdaac8f9be8aaa02cd3230c5c27648526ecdd1cad8b198f4d7c12f30dd362bf15011d04cadb17e8d1

                    • C:\Windows\Xplorer.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • C:\Windows\Xplorer.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • C:\Windows\inf\Autoplay.inF

                      Filesize

                      234B

                      MD5

                      7ae2f1a7ce729d91acfef43516e5a84c

                      SHA1

                      ebbc99c7e5ac5679de2881813257576ec980fb44

                      SHA256

                      43b2fee4fbe5b4a83ae32589d11c3f45ad1988dd5357f790ec708fdfd6709a98

                      SHA512

                      915b67d31a7034659360355cb00f9620bf9c64cc06660ea55e5fcba0096f1ac782ac7550f778c4874f63082820c03fbbf4dd05169b0de61a661a202f10a4eff9

                    • C:\Windows\inf\Autoplay.inF

                      Filesize

                      234B

                      MD5

                      7ae2f1a7ce729d91acfef43516e5a84c

                      SHA1

                      ebbc99c7e5ac5679de2881813257576ec980fb44

                      SHA256

                      43b2fee4fbe5b4a83ae32589d11c3f45ad1988dd5357f790ec708fdfd6709a98

                      SHA512

                      915b67d31a7034659360355cb00f9620bf9c64cc06660ea55e5fcba0096f1ac782ac7550f778c4874f63082820c03fbbf4dd05169b0de61a661a202f10a4eff9

                    • C:\Windows\system\gHost.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • C:\Windows\system\gHost.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • C:\\KHATRA.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • \Windows\SysWOW64\KHATRA.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • \Windows\SysWOW64\KHATRA.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • \Windows\SysWOW64\avphost.dll

                      Filesize

                      127KB

                      MD5

                      d47ebd342b6906a2fda10d70560bcd5a

                      SHA1

                      c1b54deb14d47e539bc6aea1464edb38fad4b87f

                      SHA256

                      00a035dd63d4b26ab23ab122899767da8452bf262f61a06f9136513d841feaf2

                      SHA512

                      626b00fb28e2b13b6f8fa393051e07da2eb937a164d87affdaac8f9be8aaa02cd3230c5c27648526ecdd1cad8b198f4d7c12f30dd362bf15011d04cadb17e8d1

                    • \Windows\SysWOW64\avphost.dll

                      Filesize

                      127KB

                      MD5

                      d47ebd342b6906a2fda10d70560bcd5a

                      SHA1

                      c1b54deb14d47e539bc6aea1464edb38fad4b87f

                      SHA256

                      00a035dd63d4b26ab23ab122899767da8452bf262f61a06f9136513d841feaf2

                      SHA512

                      626b00fb28e2b13b6f8fa393051e07da2eb937a164d87affdaac8f9be8aaa02cd3230c5c27648526ecdd1cad8b198f4d7c12f30dd362bf15011d04cadb17e8d1

                    • \Windows\system\gHost.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • \Windows\system\gHost.exe

                      Filesize

                      563KB

                      MD5

                      9b23a1427cc20b606775c00ab93ff879

                      SHA1

                      ace9b21f8a9331d8de7d7436e120bb8ac6771c0f

                      SHA256

                      a45a34c1c2e33bc8a37e010a7c277412bf4c9d1b40beab80d47c4b04f6505de4

                      SHA512

                      e0320f978a79aeb86760919dbd7b0b64503d16b802522675d6dac8aa1a407cc6e6e66005b0db582aae0aa4c142f508d2f5d9c64be119fa7db89fa18bf3c7c5bb

                    • memory/584-85-0x0000000003C60000-0x0000000003D5C000-memory.dmp

                      Filesize

                      1008KB

                    • memory/584-120-0x0000000000390000-0x00000000003A0000-memory.dmp

                      Filesize

                      64KB

                    • memory/584-121-0x0000000003C60000-0x0000000003D5C000-memory.dmp

                      Filesize

                      1008KB

                    • memory/584-122-0x0000000003C60000-0x0000000003D5C000-memory.dmp

                      Filesize

                      1008KB

                    • memory/584-119-0x0000000000400000-0x00000000004FC000-memory.dmp

                      Filesize

                      1008KB

                    • memory/584-70-0x0000000000400000-0x00000000004FC000-memory.dmp

                      Filesize

                      1008KB

                    • memory/1088-123-0x0000000000400000-0x00000000004FC000-memory.dmp

                      Filesize

                      1008KB

                    • memory/1088-87-0x0000000000400000-0x00000000004FC000-memory.dmp

                      Filesize

                      1008KB

                    • memory/1800-110-0x00000000724D1000-0x00000000724D3000-memory.dmp

                      Filesize

                      8KB

                    • memory/1800-116-0x00000000734BD000-0x00000000734C8000-memory.dmp

                      Filesize

                      44KB

                    • memory/1800-115-0x000000006C4D1000-0x000000006C4D3000-memory.dmp

                      Filesize

                      8KB

                    • memory/1800-111-0x000000005FFF0000-0x0000000060000000-memory.dmp

                      Filesize

                      64KB

                    • memory/1800-112-0x00000000734BD000-0x00000000734C8000-memory.dmp

                      Filesize

                      44KB

                    • memory/1800-114-0x000000006CBA1000-0x000000006CBA3000-memory.dmp

                      Filesize

                      8KB

                    • memory/1868-54-0x00000000757E1000-0x00000000757E3000-memory.dmp

                      Filesize

                      8KB

                    • memory/1868-117-0x0000000000400000-0x00000000004FC000-memory.dmp

                      Filesize

                      1008KB

                    • memory/1868-118-0x00000000040B0000-0x0000000004171000-memory.dmp

                      Filesize

                      772KB

                    • memory/1868-69-0x00000000040B0000-0x00000000041AC000-memory.dmp

                      Filesize

                      1008KB

                    • memory/1868-56-0x0000000002600000-0x0000000002610000-memory.dmp

                      Filesize

                      64KB

                    • memory/1868-55-0x0000000000400000-0x00000000004FC000-memory.dmp

                      Filesize

                      1008KB

                    • memory/1884-89-0x0000000000400000-0x00000000004FC000-memory.dmp

                      Filesize

                      1008KB

                    • memory/1884-124-0x0000000000400000-0x00000000004FC000-memory.dmp

                      Filesize

                      1008KB