Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    03/08/2026, 09:19

General

  • Target
    extension-fix-79WKMS.hta
  • Size 2KB
  • Sample260803-lapkravyet
  • SHA256 7a8e9a5dc6871167b13e22c301a00c70365c6311ff1674259b903f52a6164548
  • MD5 SHA1 SHA512 TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 15 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Modifies registry class 32 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\extension-fix-79WKMS.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Badlisted process makes network request
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:964
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4844
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:656
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:2716
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4248
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:4764
    • C:\Windows\SysWOW64\attrib.exe
      "C:\Windows\System32\attrib.exe" +h +s "C:\tsgfzoop\"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:1472
    • C:\tsgfzoop\tsgfzoop.exe
      "C:\tsgfzoop\tsgfzoop.exe" C:\tsgfzoop\tsgfzoop
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1504
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4412
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:00000000
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:1096
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping -n 300 -w 1000 127.0.0.1 >nul
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4332
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 300 -w 1000 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2128

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        8B2B9A00839EED1DFDCCC3BFC2F5DF12

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
        • Size 1KB
        • SHA256 63b14543360f5e89942ea8d5113526e64fbc71c1207328f0136b3a495d921dd0
        • MD5 SHA1 SHA512 TLSH

        B46811C17859FFB409CF0E904A4AA8F8

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
        • Size 528B
        • SHA256 d2bb091268ade68ad8121d2184d0fbce128070156304bd4de312e6fbd267409c
        • MD5 SHA1 SHA512 TLSH

        8B2B9A00839EED1DFDCCC3BFC2F5DF12

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
        • Size 174B
        • SHA256 33a8647229023393badfd13b56ef2d8e8a3fa8b68ac0428cc065b1ab310f3d6e
        • MD5 SHA1 SHA512 TLSH

        B46811C17859FFB409CF0E904A4AA8F8

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
        • Size 170B
        • SHA256 dfb97457806b7185abc3ee615e367138bd9a853ef872ede530c69f186cee7a3a
        • MD5 SHA1 SHA512 TLSH

        a1.zip

        • Path C:\tsgfzoop\a1.zip
        • Size 494KB
        • SHA256 189312c620107fe44c08096e5333cf49168c1b245f419d88117d73ee7e5f455f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        a2.zip

        • Path C:\tsgfzoop\a2.zip
        • Size 1.3MB
        • SHA256 d4062eb2d610ed44537384eb923b2ffc99614c8d952102e05781d9498a6898a6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        a3.zip

        • Path C:\tsgfzoop\a3.zip
        • Size 2KB
        • SHA256 b981a71821cfbbfcf03e66f559afd698d5b27e6702d2f5b45f2a2006183feb9a
        • MD5 SHA1 SHA512 TLSH

        tsgfzoop

        • Path C:\tsgfzoop\tsgfzoop
        • Size 1.3MB
        • SHA256 30af0a4b9b7c7d8cf41c169be3d51c03d9dabd0c18ed699b31850b618b5db55e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tsgfzoop.exe

        • Path C:\tsgfzoop\tsgfzoop.exe
        • Size 957KB
        • SHA256 bdd2b7236a110b04c288380ad56e8d7909411da93eed2921301206de0cb0dda1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1504-86-0x0000000000400000-0x00000000005C7000-memory.dmp