Analysis

  • max time kernel
    151s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:38

General

  • Target

    3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86.exe

  • Size

    619KB

  • MD5

    055e822885e9b0971b4e87b0ebfa4ab6

  • SHA1

    c23f1fe682b87478bd3e327dd499960adf412aef

  • SHA256

    3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86

  • SHA512

    85fe528df5975ef29fb794f99a91dc9d0fab665c4fd8bc923f7a980ddefff00696441343c0684db1ad8894830d5c2f538b5fce3420520318c149a33ae5035afe

  • SSDEEP

    12288:YkA5CuXTZVMUX8+fdS+D3niMcH+GjXyNrZWsg:Y15CuDZVMethD3i9HVXU9g

Malware Config

Signatures

  • NirSoft MailPassView 7 IoCs

    Password recovery tool for various email clients

  • Nirsoft 13 IoCs
  • Executes dropped EXE 4 IoCs
  • Drops startup file 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86.exe
    "C:\Users\Admin\AppData\Local\Temp\3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Local\Temp\3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86.exe
      "C:\Users\Admin\AppData\Local\Temp\3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1524
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c copy /z "C:\Users\Admin\AppData\Local\Temp\3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86.exe"
        3⤵
        • Drops startup file
        PID:1280
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 1652
        3⤵
          PID:748
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logff.txt
          3⤵
            PID:800
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logmail.txt
            3⤵
            • Accesses Microsoft Outlook accounts
            PID:1692
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:340
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
            C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:972
            • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
              "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1052
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c copy /z "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Acctres.exe"
                5⤵
                • Drops startup file
                PID:1356
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
                dw20.exe -x -s 1636
                5⤵
                • Loads dropped DLL
                PID:1936
              • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
                "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logff.txt
                5⤵
                  PID:1968
                • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
                  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logmail.txt
                  5⤵
                  • Accesses Microsoft Outlook accounts
                  PID:1728
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe"
            2⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of AdjustPrivilegeToken
            PID:1516

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\logff.txt

          Filesize

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

        • C:\Users\Admin\AppData\Local\Temp\logff.txt

          Filesize

          2B

          MD5

          f3b25701fe362ec84616a93a45ce9998

          SHA1

          d62636d8caec13f04e28442a0a6fa1afeb024bbb

          SHA256

          b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

          SHA512

          98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

          Filesize

          619KB

          MD5

          055e822885e9b0971b4e87b0ebfa4ab6

          SHA1

          c23f1fe682b87478bd3e327dd499960adf412aef

          SHA256

          3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86

          SHA512

          85fe528df5975ef29fb794f99a91dc9d0fab665c4fd8bc923f7a980ddefff00696441343c0684db1ad8894830d5c2f538b5fce3420520318c149a33ae5035afe

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

          Filesize

          619KB

          MD5

          055e822885e9b0971b4e87b0ebfa4ab6

          SHA1

          c23f1fe682b87478bd3e327dd499960adf412aef

          SHA256

          3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86

          SHA512

          85fe528df5975ef29fb794f99a91dc9d0fab665c4fd8bc923f7a980ddefff00696441343c0684db1ad8894830d5c2f538b5fce3420520318c149a33ae5035afe

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

          Filesize

          619KB

          MD5

          055e822885e9b0971b4e87b0ebfa4ab6

          SHA1

          c23f1fe682b87478bd3e327dd499960adf412aef

          SHA256

          3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86

          SHA512

          85fe528df5975ef29fb794f99a91dc9d0fab665c4fd8bc923f7a980ddefff00696441343c0684db1ad8894830d5c2f538b5fce3420520318c149a33ae5035afe

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe

          Filesize

          17KB

          MD5

          fd03ff313a655e0b59dce81044bc6341

          SHA1

          0fa0dc26876f636956c3de82685bdbbc8ad3ef86

          SHA256

          1f1c8c1458eaee47a448513db52ddb536406146d48793c3c24f41eb72b13cec9

          SHA512

          00fdf54987cb8abd0c68619e02991aeb50e5509ea56b0e5fa613ac29fddcc57c585cd0e5be055cb5c6563828b6a631666fe6e7004dada7607ddd903659264ddd

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe

          Filesize

          17KB

          MD5

          fd03ff313a655e0b59dce81044bc6341

          SHA1

          0fa0dc26876f636956c3de82685bdbbc8ad3ef86

          SHA256

          1f1c8c1458eaee47a448513db52ddb536406146d48793c3c24f41eb72b13cec9

          SHA512

          00fdf54987cb8abd0c68619e02991aeb50e5509ea56b0e5fa613ac29fddcc57c585cd0e5be055cb5c6563828b6a631666fe6e7004dada7607ddd903659264ddd

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe

          Filesize

          17KB

          MD5

          fd03ff313a655e0b59dce81044bc6341

          SHA1

          0fa0dc26876f636956c3de82685bdbbc8ad3ef86

          SHA256

          1f1c8c1458eaee47a448513db52ddb536406146d48793c3c24f41eb72b13cec9

          SHA512

          00fdf54987cb8abd0c68619e02991aeb50e5509ea56b0e5fa613ac29fddcc57c585cd0e5be055cb5c6563828b6a631666fe6e7004dada7607ddd903659264ddd

        • \Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

          Filesize

          619KB

          MD5

          055e822885e9b0971b4e87b0ebfa4ab6

          SHA1

          c23f1fe682b87478bd3e327dd499960adf412aef

          SHA256

          3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86

          SHA512

          85fe528df5975ef29fb794f99a91dc9d0fab665c4fd8bc923f7a980ddefff00696441343c0684db1ad8894830d5c2f538b5fce3420520318c149a33ae5035afe

        • \Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

          Filesize

          619KB

          MD5

          055e822885e9b0971b4e87b0ebfa4ab6

          SHA1

          c23f1fe682b87478bd3e327dd499960adf412aef

          SHA256

          3ceef80c3de4e08f798a9d3a958da20cd1790a06e55a8805053f51a004b83d86

          SHA512

          85fe528df5975ef29fb794f99a91dc9d0fab665c4fd8bc923f7a980ddefff00696441343c0684db1ad8894830d5c2f538b5fce3420520318c149a33ae5035afe

        • \Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe

          Filesize

          17KB

          MD5

          fd03ff313a655e0b59dce81044bc6341

          SHA1

          0fa0dc26876f636956c3de82685bdbbc8ad3ef86

          SHA256

          1f1c8c1458eaee47a448513db52ddb536406146d48793c3c24f41eb72b13cec9

          SHA512

          00fdf54987cb8abd0c68619e02991aeb50e5509ea56b0e5fa613ac29fddcc57c585cd0e5be055cb5c6563828b6a631666fe6e7004dada7607ddd903659264ddd

        • memory/340-118-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/340-76-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/340-80-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/340-70-0x0000000000000000-mapping.dmp

        • memory/748-77-0x0000000000000000-mapping.dmp

        • memory/800-96-0x000000000040E758-mapping.dmp

        • memory/800-90-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/800-100-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/800-99-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/800-95-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/800-93-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/800-92-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/800-87-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/800-88-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/972-117-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/972-83-0x0000000000000000-mapping.dmp

        • memory/972-86-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1052-136-0x0000000000080000-0x00000000000F6000-memory.dmp

          Filesize

          472KB

        • memory/1052-147-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1052-142-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1052-139-0x0000000000080000-0x00000000000F6000-memory.dmp

          Filesize

          472KB

        • memory/1052-132-0x0000000000080000-0x00000000000F6000-memory.dmp

          Filesize

          472KB

        • memory/1052-129-0x000000000047057E-mapping.dmp

        • memory/1280-74-0x0000000000000000-mapping.dmp

        • memory/1356-141-0x0000000000000000-mapping.dmp

        • memory/1516-146-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1516-122-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1516-119-0x0000000000000000-mapping.dmp

        • memory/1524-60-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/1524-58-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/1524-62-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/1524-65-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/1524-67-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/1524-79-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1524-75-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1524-61-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/1524-63-0x000000000047057E-mapping.dmp

        • memory/1524-57-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/1692-107-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1692-114-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1692-102-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1692-105-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1692-108-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1692-116-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1692-115-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1692-110-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1692-111-0x0000000000411654-mapping.dmp

        • memory/1692-103-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1728-176-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1728-172-0x0000000000411654-mapping.dmp

        • memory/1908-56-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1908-54-0x00000000762F1000-0x00000000762F3000-memory.dmp

          Filesize

          8KB

        • memory/1908-55-0x0000000074DE0000-0x000000007538B000-memory.dmp

          Filesize

          5.7MB

        • memory/1936-143-0x0000000000000000-mapping.dmp

        • memory/1968-161-0x0000000000400000-0x0000000000418000-memory.dmp

          Filesize

          96KB

        • memory/1968-157-0x000000000040E758-mapping.dmp