Resubmissions

03/07/2024, 03:03

240703-dkc1psvajb

03/07/2024, 02:51

240703-dcfrmatepc10

03/07/2024, 02:39

240703-c5h7satbkh8

19/06/2024, 01:29

240619-bv78gswajp10

19/06/2024, 01:23

240619-brv4ravhkp7

Analysis

  • max time kernel
    108s
  • max time network
    112s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03/07/2024, 02:51

General

  • Target
    Vorion App Setup.exe
  • Size 47.3MB
  • Sample240703-dcfrmatepc
  • SHA256 48320cb8fd5ed9a3ccbaf9fc03bd160c3694c79d0efc8a8cf899069fc1d8e677
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • vor21

C2
  • http://45.132.105.157

Attributes
  • url_path

    /eb155c7506e03ca9.php

Signatures

  • Detects HijackLoader (aka IDAT Loader) 2 IoCs
  • HijackLoader

    HijackLoader is a multistage loader first seen in 2023.

  • Stealc

    Stealc is an infostealer written in C++.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • .NET Reactor proctector 1 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Vorion App Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Vorion App Setup.exe"
    1⤵
    • Drops file in Program Files directory
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2416
    • C:\Program Files (x86)\Vorion\Vorion.exe
      "C:\Program Files (x86)\Vorion\Vorion.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:800
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" /command Add-MpPreference -ExclusionPath 'C:\Users\Admin'; Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1952
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" /command Add-MpPreference -ExclusionPath 'C:\Users\Admin'; Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1824
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" /command Add-MpPreference -ExclusionPath 'C:\Users\Admin'; Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2904
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell" /command Add-MpPreference -ExclusionPath 'C:\Users\Admin'; Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2676
      • C:\Users\Admin\AppData\Local\Temp\79ae72fe-d28f-49be-98e7-f8861afb0038\snss1.exe
        "C:\Users\Admin\AppData\Local\Temp\79ae72fe-d28f-49be-98e7-f8861afb0038\snss1.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2568
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\SysWOW64\cmd.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2760
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            5⤵
              PID:856
        • C:\Users\Admin\AppData\Local\Temp\79ae72fe-d28f-49be-98e7-f8861afb0038\snss2.exe
          "C:\Users\Admin\AppData\Local\Temp\79ae72fe-d28f-49be-98e7-f8861afb0038\snss2.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1428
          • C:\Users\Admin\AppData\Local\Temp\Readerwriter_nog\GDBUpdate.exe
            C:\Users\Admin\AppData\Local\Temp\Readerwriter_nog\GDBUpdate.exe
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious behavior: EnumeratesProcesses
            PID:980

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          Accessibility.dll

          • Path C:\Program Files (x86)\Vorion\Accessibility.dll
          • Size 20KB
          • SHA256 929ea150ad45b7c7dd5427461fbec44d43b67c08081f59b42b6abf570feae271
          • MD5 SHA1 SHA512 SSDEEP

          Microsoft.Win32.Primitives.dll

          • Path C:\Program Files (x86)\Vorion\Microsoft.Win32.Primitives.dll
          • Size 15KB
          • SHA256 f1b40565e5c4c41da810aee5b7d2272a0906e88f796812435aa5ed712bcac40c
          • MD5 SHA1 SHA512 SSDEEP

          System.Collections.dll

          • Path C:\Program Files (x86)\Vorion\System.Collections.dll
          • Size 254KB
          • SHA256 9193aaef3ea8f19408f88c25fcaf5880e7836d1c35028d7e4077f6090b083541
          • MD5 SHA1 SHA512 SSDEEP

          System.ComponentModel.Primitives.dll

          • Path C:\Program Files (x86)\Vorion\System.ComponentModel.Primitives.dll
          • Size 78KB
          • SHA256 133ec34432ab8fa4f63ade636193864b6a62a089a0c98d746f5532c8a52f437b
          • MD5 SHA1 SHA512 SSDEEP

          System.IO.FileSystem.dll

          • Path C:\Program Files (x86)\Vorion\System.IO.FileSystem.dll
          • Size 15KB
          • SHA256 7bd41c6b12b73e6e90476f2d56db8581664abe07e7ab9bf2917bb254ed1d75ad
          • MD5 SHA1 SHA512 SSDEEP

          System.Memory.dll

          • Path C:\Program Files (x86)\Vorion\System.Memory.dll
          • Size 154KB
          • SHA256 3af25e0c81c1462d0db86f55c4e5fd8c048c70685f9a566d29d499bc46935fb4
          • MD5 SHA1 SHA512 SSDEEP

          System.Private.CoreLib.dll

          • Path C:\Program Files (x86)\Vorion\System.Private.CoreLib.dll
          • Size 12.6MB
          • SHA256 ba7e61a00e7a4634b5c5a79b83126f75580ceec235c613000c3efbc01826cad0
          • MD5 SHA1 SHA512 SSDEEP

          System.Runtime.InteropServices.dll

          • Path C:\Program Files (x86)\Vorion\System.Runtime.InteropServices.dll
          • Size 94KB
          • SHA256 756de3f5f2e07b478ac046a0ac976b992ef6bc653a1be2bb1e28524a4ff8d67d
          • MD5 SHA1 SHA512 SSDEEP

          System.Runtime.dll

          • Path C:\Program Files (x86)\Vorion\System.Runtime.dll
          • Size 42KB
          • SHA256 1fc86ada2ec543a85b8a06a9470a7b5aaa91eb03cfe497a32cd52a1e043ea100
          • MD5 SHA1 SHA512 SSDEEP

          System.Security.Cryptography.Algorithms.dll

          • Path C:\Program Files (x86)\Vorion\System.Security.Cryptography.Algorithms.dll
          • Size 17KB
          • SHA256 c99c6b384655e1af4ae5161fe9d54d95828ae17b18b884b0a99258f1c45aa388
          • MD5 SHA1 SHA512 SSDEEP

          System.Security.Cryptography.Csp.dll

          • Path C:\Program Files (x86)\Vorion\System.Security.Cryptography.Csp.dll
          • Size 15KB
          • SHA256 16bc1f72938d96deca5ce031a29a43552385674c83f07e4f91d387f5f01b8d0a
          • MD5 SHA1 SHA512 SSDEEP

          System.Security.Cryptography.Primitives.dll

          • Path C:\Program Files (x86)\Vorion\System.Security.Cryptography.Primitives.dll
          • Size 15KB
          • SHA256 6703e8d35df4b6389f43df88cc35fc3b3823fb3a7f04e5eb540b0af39f5fa622
          • MD5 SHA1 SHA512 SSDEEP

          System.Security.Cryptography.dll

          • Path C:\Program Files (x86)\Vorion\System.Security.Cryptography.dll
          • Size 2.0MB
          • SHA256 4582f67764410785714a30fa05ffaaad78fe1bc8d4689889a43c2af825b2002e
          • MD5 SHA1 SHA512 SSDEEP

          System.Threading.Thread.dll

          • Path C:\Program Files (x86)\Vorion\System.Threading.Thread.dll
          • Size 15KB
          • SHA256 84c9a95609878542f00fe7da658f62d1a6943a43e6346af80d26bcff069a4dbd
          • MD5 SHA1 SHA512 SSDEEP

          System.Threading.dll

          • Path C:\Program Files (x86)\Vorion\System.Threading.dll
          • Size 82KB
          • SHA256 e8d1f5c422ee0ba3b235b22028ab92dc77c1ff9774edc0b940cad7224a30ba7d
          • MD5 SHA1 SHA512 SSDEEP

          hostfxr.dll

          • Path C:\Program Files (x86)\Vorion\hostfxr.dll
          • Size 342KB
          • SHA256 5aa15c6119b971742a7f824609739198a3c7c499370ed8b8df5a5942f69d9303
          • MD5 SHA1 SHA512 SSDEEP

          mscorrc.dll

          • Path C:\Program Files (x86)\Vorion\mscorrc.dll
          • Size 133KB
          • SHA256 23a433398be5135222ee14bb1de6334e7b22bad1a38664a83f1cf19dfbddd960
          • MD5 SHA1 SHA512 SSDEEP

          ioSpecial.ini

          • Path C:\Users\Admin\AppData\Local\Temp\nsy259C.tmp\ioSpecial.ini
          • Size 1KB
          • SHA256 a8f2a473fd0d443fe83022dcc52258223f5c8bba16c8255f50e5612af4e18fab
          • MD5 SHA1 SHA512

          ioSpecial.ini

          • Path C:\Users\Admin\AppData\Local\Temp\nsy259C.tmp\ioSpecial.ini
          • Size 1KB
          • SHA256 40cce4a6cc02f7b7a4402b9da74a43e46279a39e43de69b97e0343aa7c2dc225
          • MD5 SHA1 SHA512

          9N9050Z09HCZVFW2A4X1.temp

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\9N9050Z09HCZVFW2A4X1.temp
          • Size 7KB
          • SHA256 3b18086b1b1570238ae0fdb48ad8786ff7eff5c91113b5aedd0cd1e8066731c1
          • MD5 SHA1 SHA512 SSDEEP

          FFEncryptor.ini

          • Path C:\Users\Admin\AppData\Roaming\WinTools\FFEncryptor\FFEncryptor.ini
          • Size 27B
          • SHA256 b9ace7253c077c73429ecd51dce189e074eb77ed325f77b6251d7f1be867db72
          • MD5 SHA1 SHA512

          System.Collections.Concurrent.dll

          • Path \Program Files (x86)\Vorion\System.Collections.Concurrent.dll
          • Size 270KB
          • SHA256 483130bfd1e57a0cbfd8a4f3c6e2353ac3f246276f9476c83cca1cadbc47ef47
          • MD5 SHA1 SHA512 SSDEEP

          System.Collections.Specialized.dll

          • Path \Program Files (x86)\Vorion\System.Collections.Specialized.dll
          • Size 102KB
          • SHA256 0cbabb81eae22f4c07c6c846054d207ae3f25da15649eb7fa29e4e2cecd24db4
          • MD5 SHA1 SHA512 SSDEEP

          System.ComponentModel.EventBasedAsync.dll

          • Path \Program Files (x86)\Vorion\System.ComponentModel.EventBasedAsync.dll
          • Size 46KB
          • SHA256 4c97d7bc0742faaa52ba86018b040aac44ddfc88a5835f9e6a659e03b4558999
          • MD5 SHA1 SHA512 SSDEEP

          System.Diagnostics.TraceSource.dll

          • Path \Program Files (x86)\Vorion\System.Diagnostics.TraceSource.dll
          • Size 142KB
          • SHA256 22365ee4e3ba3c991d495e41f92e29bf6ddb38a48c44f55651271b80ee62b6d1
          • MD5 SHA1 SHA512 SSDEEP

          System.Drawing.Common.dll

          • Path \Program Files (x86)\Vorion\System.Drawing.Common.dll
          • Size 1.5MB
          • SHA256 75b1e772a4355145364121af00e5b5cf06c7212aa53d662fdc996bc11e8092a9
          • MD5 SHA1 SHA512 SSDEEP

          System.Drawing.Primitives.dll

          • Path \Program Files (x86)\Vorion\System.Drawing.Primitives.dll
          • Size 130KB
          • SHA256 cbe9fbb1d1e4850460854474ffd8c01ddcc756dcb33a86d1674c0cb2e2a0b026
          • MD5 SHA1 SHA512 SSDEEP

          System.Private.Xml.Linq.dll

          • Path \Program Files (x86)\Vorion\System.Private.Xml.Linq.dll
          • Size 394KB
          • SHA256 0b63cebb991d1911a607993ea5b4639f34a2b0b381a73973542db2d3591e9f90
          • MD5 SHA1 SHA512 SSDEEP

          System.Private.Xml.dll

          • Path \Program Files (x86)\Vorion\System.Private.Xml.dll
          • Size 7.6MB
          • SHA256 834e304221e742a831be5c5178892258e689eae35b730172e74161af2785aab9
          • MD5 SHA1 SHA512 SSDEEP

          System.Windows.Forms.Primitives.dll

          • Path \Program Files (x86)\Vorion\System.Windows.Forms.Primitives.dll
          • Size 2.9MB
          • SHA256 5794a3996a0b4ab9cb13f3de0f87d50462615a7d0eb1d243d9324a682c1b58cb
          • MD5 SHA1 SHA512 SSDEEP

          System.Windows.Forms.dll

          • Path \Program Files (x86)\Vorion\System.Windows.Forms.dll
          • Size 12.9MB
          • SHA256 efc52dbbef5202d9ff424d7adc6e2249b66450a5fd5414891776fc617b00123e
          • MD5 SHA1 SHA512 SSDEEP

          Vorion.dll

          • Path \Program Files (x86)\Vorion\Vorion.dll
          • Size 524KB
          • SHA256 5d046d41f78b78b088e4e6eb5a55913358f48f6d00e4e0f0e471fbe96542c6bf
          • MD5 SHA1 SHA512 SSDEEP

          Vorion.exe

          • Path \Program Files (x86)\Vorion\Vorion.exe
          • Size 308KB
          • SHA256 bc99f561aa080248152d61af239a9346cd309df70f89cc419e6e573b4be60cc2
          • MD5 SHA1 SHA512 SSDEEP

          clrjit.dll

          • Path \Program Files (x86)\Vorion\clrjit.dll
          • Size 1.7MB
          • SHA256 0759c8129bc761fe039e1cacb92c643606591cb8149a2ed33ee16babc9768dcb
          • MD5 SHA1 SHA512 SSDEEP

          coreclr.dll

          • Path \Program Files (x86)\Vorion\coreclr.dll
          • Size 4.8MB
          • SHA256 871949a2ec19c183ccdacdea54c7b3e43c590eaf445e1b58817ee1cb3ce366d5
          • MD5 SHA1 SHA512 SSDEEP

          hostpolicy.dll

          • Path \Program Files (x86)\Vorion\hostpolicy.dll
          • Size 388KB
          • SHA256 02c8dbe7bf1999352fc561cb35b51c6a88c881a4223c478c91768fdaf8e47b62
          • MD5 SHA1 SHA512 SSDEEP

          InstallOptions.dll

          • Path \Users\Admin\AppData\Local\Temp\nsy259C.tmp\InstallOptions.dll
          • Size 15KB
          • SHA256 b2091205e225fc07daf1101218c64ce62a4690cacac9c3d0644d12e93e4c213c
          • MD5 SHA1 SHA512 SSDEEP

          LangDLL.dll

          • Path \Users\Admin\AppData\Local\Temp\nsy259C.tmp\LangDLL.dll
          • Size 5KB
          • SHA256 32230128c18574c1e860dfe4b17fe0334f685740e27bc182e0d525a8948c9c2e
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path \Users\Admin\AppData\Local\Temp\nsy259C.tmp\System.dll
          • Size 12KB
          • SHA256 9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
          • MD5 SHA1 SHA512 SSDEEP

          memory/800-752-0x000007FEF5E7A000-0x000007FEF5E7B000-memory.dmp

          memory/800-683-0x000007FEF5E7A000-0x000007FEF5E7B000-memory.dmp

          memory/856-788-0x0000000000400000-0x000000000063D000-memory.dmp

          memory/856-787-0x0000000000400000-0x000000000063D000-memory.dmp

          memory/856-785-0x0000000000400000-0x000000000063D000-memory.dmp

          memory/856-784-0x00000000771E0000-0x0000000077389000-memory.dmp

          memory/856-783-0x0000000000400000-0x000000000063D000-memory.dmp

          memory/1428-800-0x0000000073C60000-0x0000000073DD4000-memory.dmp

          memory/1428-797-0x0000000073C60000-0x0000000073DD4000-memory.dmp

          memory/1428-798-0x00000000771E0000-0x0000000077389000-memory.dmp

          memory/1428-796-0x0000000000400000-0x0000000000C50000-memory.dmp

          memory/1428-821-0x0000000073C60000-0x0000000073DD4000-memory.dmp

          memory/1824-742-0x00000000022C0000-0x00000000022C8000-memory.dmp

          memory/1824-741-0x000000001B4F0000-0x000000001B7D2000-memory.dmp

          memory/1952-736-0x0000000002240000-0x0000000002248000-memory.dmp

          memory/1952-735-0x000000001B6B0000-0x000000001B992000-memory.dmp

          memory/2568-758-0x0000000000400000-0x0000000000595000-memory.dmp

          memory/2568-778-0x0000000074480000-0x00000000745F4000-memory.dmp

          memory/2568-760-0x00000000771E0000-0x0000000077389000-memory.dmp

          memory/2568-759-0x0000000074480000-0x00000000745F4000-memory.dmp

          memory/2760-781-0x0000000074480000-0x00000000745F4000-memory.dmp

          memory/2760-780-0x00000000771E0000-0x0000000077389000-memory.dmp

          memory/2904-747-0x0000000001D90000-0x0000000001D98000-memory.dmp