Analysis

  • max time kernel
    32s
  • max time network
    36s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260130-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260130-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    18/04/2026, 16:08

Errors

Reason
Machine shutdown

General

  • Target
    MrsMajor2.0.exe
  • Size 25.6MB
  • Sample260418-tlj4eacy4n
  • SHA256 5dd4ea169cabf9226f54bb53e63ea6a1b5880a0d1222242aee378efb6255b57d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Possible privilege escalation attempt 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Modifies file permissions 1 TTPs 4 IoCs
  • Modifies system executable filetype association 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 36 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies Control Panel 4 IoCs
  • Modifies data under HKEY_USERS 15 IoCs
  • Modifies registry class 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MrsMajor2.0.exe
    "C:\Users\Admin\AppData\Local\Temp\MrsMajor2.0.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4624
    • C:\Windows\system32\wscript.exe
      "C:\Windows\sysnative\wscript.exe" C:\Users\Admin\AppData\Local\Temp\3728.tmp\3729.vbs
      2⤵
      • Modifies WinLogon for persistence
      • Modifies Windows Defender DisableAntiSpyware settings
      • UAC bypass
      • Disables RegEdit via registry modification
      • Checks computer location settings
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies Control Panel
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4024
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c cd\&cd "C:\Users\Admin\AppData\Local\Temp" & eula32.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3244
        • C:\Users\Admin\AppData\Local\Temp\eula32.exe
          eula32.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:3456
      • C:\Program Files\MicrosoftWindowsServicesEtc\GetReady.exe
        "C:\Program Files\MicrosoftWindowsServicesEtc\GetReady.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2744
        • C:\Windows\system32\cmd.exe
          "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\1\7B07.bat "C:\Program Files\MicrosoftWindowsServicesEtc\GetReady.exe""
          4⤵
          • Drops file in System32 directory
          • Suspicious use of WriteProcessMemory
          PID:1296
          • C:\Windows\System32\takeown.exe
            takeown /f taskmgr.exe
            5⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            • Suspicious use of AdjustPrivilegeToken
            PID:1884
          • C:\Windows\System32\icacls.exe
            icacls taskmgr.exe /granted "Admin":F
            5⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:692
          • C:\Windows\System32\takeown.exe
            takeown /f sethc.exe
            5⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            • Suspicious use of AdjustPrivilegeToken
            PID:4976
          • C:\Windows\System32\icacls.exe
            icacls sethc.exe /granted "Admin":F
            5⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:4600
      • C:\Program Files\MicrosoftWindowsServicesEtc\notmuch.exe
        "C:\Program Files\MicrosoftWindowsServicesEtc\notmuch.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4560
      • C:\Windows\System32\shutdown.exe
        "C:\Windows\System32\shutdown.exe" -r -t 5
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3472
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa3a30855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:1636

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7B07.bat

        • Path C:\Users\Admin\AppData\Local\Temp\1\7B07.bat
        • Size 356B
        • SHA256 3e18de7065154144b54a2f7c179c27b3f27c3cda5871f472f452a8cfc3dc6791
        • MD5 SHA1 SHA512 TLSH

        3729.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\3729.vbs
        • Size 2KB
        • SHA256 f853dddb0f9f1b74b72bccdb5191c28e18d466b5dbc205f7741a24391375cd6f
        • MD5 SHA1 SHA512 TLSH

        AppKill.bat

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\AppKill.bat
        • Size 671B
        • SHA256 5549670ef8837c6e3c4e496c1ea2063670618249d4151dea4d07d48ab456690c
        • MD5 SHA1 SHA512 TLSH

        CallFunc.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\CallFunc.vbs
        • Size 388B
        • SHA256 a767894a68ebc490cb5ab2b7b04dd12b7465553ce7ba7e41e1ea45f1eaef5275
        • MD5 SHA1 SHA512 TLSH

        DgzRun.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\DgzRun.vbs
        • Size 341B
        • SHA256 729f7540887cf32a5d4e1968a284c46cf904752821c734bd970ecd30a848477a
        • MD5 SHA1 SHA512 TLSH

        GetReady.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\GetReady.exe
        • Size 52KB
        • SHA256 5319958efc38ea81f61854eb9f6c8aee32394d4389e52fe5c1f7f7ef6b261725
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Major.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\Major.exe
        • Size 60KB
        • SHA256 da0233f5e5e9a34e8dd4f6911444ca1f3e29bb9cbd958a9f4508ac7d72ccd55d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NotMuch.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\NotMuch.exe
        • Size 122KB
        • SHA256 cf830a2d66d3ffe51341de9e62c939b2bb68583afbc926ddc7818c3a71e80ebb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RuntimeChecker.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\RuntimeChecker.exe
        • Size 58KB
        • SHA256 51f59e877a1c2a1c2760c677def7395ef2868c2ee3e56ffdc3ace570afa50428
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WinScrew.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\WinScrew.exe
        • Size 52KB
        • SHA256 429e01b0e06b02a55bafb1527629f8d4c5f64d9b21ac9f81484a3928fdce6dc9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        breakrule.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\breakrule.exe
        • Size 58KB
        • SHA256 5eafebd52fbf6d0e8abd0cc9bf42d36e5b6e4d85b8ebe59f61c9f2d6dccc65e4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bsod.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\bsod.exe
        • Size 1.2MB
        • SHA256 6581eeab9fd116662b4ca73f6ef00fb96e0505d01cfb446ee4b32bbdeefe1361
        • MD5 SHA1 SHA512 SSDEEP TLSH

        checker.bat

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\checker.bat
        • Size 151B
        • SHA256 3382484b5a6a04d05500e7622da37c1ffaef3a1343395942bc7802bf2a19b53f
        • MD5 SHA1 SHA512 TLSH

        clingclang.wav

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\clingclang.wav
        • Size 13.1MB
        • SHA256 6831f471ee3363e981e6a1eb0d722f092b33c9b73c91f9f2a9aafa5cb4c56b29
        • MD5 SHA1 SHA512 SSDEEP TLSH

        eula32.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\data\eula32.exe
        • Size 1.2MB
        • SHA256 c5704419b3eec34fb133cf2509d12492febdcb8831efa1ab014edeac83f538d9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        excursor.ani

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\data\excursor.ani
        • Size 17KB
        • SHA256 b93b0cb2bb965f5758cb0c699fbc827a64712d6f248aaf810cde5fa5ef3227eb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        fileico.ico

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\data\fileico.ico
        • Size 38KB
        • SHA256 d13f7fd44f38136dae1cdf147ba9b673e698f77c0a644ccd3c12e3a71818a0cd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        runner32s.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\data\runner32s.exe
        • Size 58KB
        • SHA256 a97ea879e2b51972aa0ba46a19ad4363d876ac035502a2ed2df27db522bc6ac4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        thetruth.jpg

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\data\thetruth.jpg
        • Size 483KB
        • SHA256 4e3baea3d98c479951f9ea02e588a3b98b1975055c1dfdf67af4de6e7b41e476
        • MD5 SHA1 SHA512 SSDEEP TLSH

        healgen.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\healgen.vbs
        • Size 302B
        • SHA256 cc6d0f847fde710096b01abf905c037594ff4afae6e68a8b6af0cc59543e29bb
        • MD5 SHA1 SHA512 TLSH

        majordared.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\majordared.exe
        • Size 8.8MB
        • SHA256 fa24bc7bc366f2ad579d57a691fb0d10d868e501221df0c32a98e705d2d61e43
        • MD5 SHA1 SHA512 SSDEEP TLSH

        majorlist.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\majorlist.exe
        • Size 51KB
        • SHA256 3cdafc944b48d45a0d5dc068652486a970124ebe1379a7a04e5cf1dcf05c37c8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        majorsod.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\majorsod.exe
        • Size 58KB
        • SHA256 d1094e91960ded15444c6f50756adc451a7c0b495b2ea28319b7184ba96236f7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        rsod.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\rsod.exe
        • Size 74KB
        • SHA256 dcaabfd6955d3fec26a86217d1b1ab7e979c301d498473e4d885145ce031fc3b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        GetReady.bat

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\GetReady.bat
        • Size 345B
        • SHA256 33a0c62f3f66bce3fc1beb37aca8ad731bfa5590177d933d9d4eae016019242a
        • MD5 SHA1 SHA512 TLSH

        Major.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\Major.vbs
        • Size 2KB
        • SHA256 cbd3b0f294e8f11592a3ad80d1070d81746f806a48183b93c345251422ccbf0d
        • MD5 SHA1 SHA512 TLSH

        RuntimeChecker.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\RuntimeChecker.vbs
        • Size 440B
        • SHA256 989d947c51c878bcefecb53d867a3c182c2d67129a87a5f6773eb6ef2bbf9b2e
        • MD5 SHA1 SHA512 TLSH

        WinScrew.bat

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\WinScrew.bat
        • Size 336B
        • SHA256 3aef33c03777abe62feef0a840ac6a087caafc05adfe801464fd1c52eac656a0
        • MD5 SHA1 SHA512 TLSH

        breakrule.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\breakrule.vbs
        • Size 108B
        • SHA256 17d014cb4abbaced3acce9b6d7a1b595cd6e2dd814e41f06ceddcdc08e93eebe
        • MD5 SHA1 SHA512 TLSH

        bsod.bat

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\bsod.bat
        • Size 133B
        • SHA256 3900e3b60b4691311e050c4cf8fac82ff178a06e3d04d5d6b2d7ea12cf5d53d1
        • MD5 SHA1 SHA512 TLSH

        cmd.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\cmd.vbs
        • Size 11B
        • SHA256 4d2639e890d6d5988eb9cb6f8cb50647048bbfeeb83fc604c52567e7381c876c
        • MD5 SHA1 SHA512

        majorlist.bat

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\majorlist.bat
        • Size 105B
        • SHA256 839301ef07178c100e7f4d47874faf995ae5d11dfd527dda096a284c8114671b
        • MD5 SHA1 SHA512 TLSH

        majorsod.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\majorsod.vbs
        • Size 126B
        • SHA256 8863b595563e92d73b29090ff83191b2fa1297507be588aa7e1cf910e77c7feb
        • MD5 SHA1 SHA512 TLSH

        runner32s.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\weird\runner32s.vbs
        • Size 383B
        • SHA256 9aae0707b1d5d3b7ed3bf5cc8fbb530aebd195e3e2f18312f3f7f1aa43e031b4
        • MD5 SHA1 SHA512 TLSH

        xRun.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\xRun.vbs
        • Size 93B
        • SHA256 ed588fa361979f7f9c6dbb4e6a1ae6e075f2db8d79ea6ca2007ba8e3423671b0
        • MD5 SHA1 SHA512 TLSH

        xRunReg.vbs

        • Path C:\Users\Admin\AppData\Local\Temp\3728.tmp\MicrosoftWindowsServicesEtc\xRunReg.vbs
        • Size 134B
        • SHA256 cdd4f356ca256c707960bc42b97649111a830e6f951ca6a3cf80853e3c342947
        • MD5 SHA1 SHA512 TLSH

        memory/2744-123-0x0000000002260000-0x00000000022DE000-memory.dmp

        memory/3456-113-0x0000000005860000-0x0000000005E06000-memory.dmp

        memory/3456-114-0x00000000051B0000-0x0000000005242000-memory.dmp

        memory/3456-115-0x00000000051A0000-0x00000000051AA000-memory.dmp

        memory/3456-112-0x0000000000680000-0x00000000007BC000-memory.dmp

        memory/4024-118-0x0000015266720000-0x000001526672C000-memory.dmp

        memory/4024-127-0x0000015266720000-0x000001526672C000-memory.dmp

        memory/4560-128-0x0000000000040000-0x0000000000064000-memory.dmp

        memory/4560-130-0x0000000006FA0000-0x0000000007003000-memory.dmp

        memory/4624-117-0x000000000040F000-0x0000000000410000-memory.dmp

        memory/4624-116-0x0000000003E40000-0x0000000003EBE000-memory.dmp

        memory/4624-0-0x000000000040F000-0x0000000000410000-memory.dmp

        memory/4624-129-0x0000000003E40000-0x0000000003EBE000-memory.dmp