Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/08/2026, 08:30

General

  • Target
    2026-08-27_c9e149e6c86677fc6a7c742b6a46509d_elex_stop_vidar.exe
  • Size 3.2MB
  • Sample260827-kd64jafk2s
  • SHA256 e8664cb509d574160d429fa3c6fc7121a79e3c3f3afb3fd244d980a752399f43
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Creates new service(s) 2 TTPs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Executes a command shell one-liner 1 TTPs 3 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 11 IoCs

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

  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-27_c9e149e6c86677fc6a7c742b6a46509d_elex_stop_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-27_c9e149e6c86677fc6a7c742b6a46509d_elex_stop_vidar.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1572
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c schtasks /create /tn "Microsoft\Windows\MemoryDiagnostic\MicrosoftEdgeUpdateTask_BBABAABCBCBACBBBCBBACBABABAABCBCBBAABCBACCACCAABBBCBBCBCBAACBACCCBCCBCCBCBBBBABACAAAABBAACBCBAABCCBAABA" /tr "C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe" /sc minute /mo 30 /ru SYSTEM /f
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2388
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn "Microsoft\Windows\MemoryDiagnostic\MicrosoftEdgeUpdateTask_BBABAABCBCBACBBBCBBACBABABAABCBCBBAABCBACCACCAABBBCBBCBCBAACBACCCBCCBCCBCBBBBABACAAAABBAACBCBAABCCBAABA" /tr "C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe" /sc minute /mo 30 /ru SYSTEM /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3352
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c sc create "UserDataSvc_ABCAACBBBACBABABABCACBCAACACBCBBCCBACBCCACCBAABBABA" binPath= "C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe" start= auto displayName= "UserDataSvc_ABCAACBBBACBABABABCACBCAACACBCBBCCBACBCCACCBAABBABA"
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:856
      • C:\Windows\SysWOW64\sc.exe
        sc create "UserDataSvc_ABCAACBBBACBABABABCACBCAACACBCBBCCBACBCCACCBAABBABA" binPath= "C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe" start= auto displayName= "UserDataSvc_ABCAACBBBACBABABABCACBCAACACBCBBCCBACBCCACCBAABBABA"
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:2052
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c sc start "UserDataSvc_ABCAACBBBACBABABABCACBCAACACBCBBCCBACBCCACCBAABBABA"
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1468
      • C:\Windows\SysWOW64\sc.exe
        sc start "UserDataSvc_ABCAACBBBACBABABABCACBCAACACBCBBCCBACBCCACCBAABBABA"
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:4076
  • C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe
    C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Windows\SysWOW64\notepad.exe
      "notepad.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2464
      • C:\Windows\SysWOW64\calc.exe
        calc.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:384
  • C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe
    C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe
    1⤵
    • Executes dropped EXE
    PID:5164
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:4136
  • C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_ACBBBCCBBCABBAABCAABCBAACABAACCBCABCBABCACABCCCABCBBBCB.exe
    C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_ACBBBCCBBCABBAABCAABCBAACABAACCBCABCBABCACABCCCABCBBBCB.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4168

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        StepOptimize.exe

        • Path C:\Users\Admin\Desktop\StepOptimize.exe
        • Size 1.3MB
        • SHA256 91bc4dd4b15ae9d3e8adcdf1456155d46be8bf11dc147f7aacd782fdf0a4a2e5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StepOptimize.exe

        • Path C:\Users\Admin\Desktop\StepOptimize.exe
        • Size 39.1MB
        • SHA256 1ddb46a9a86df875ac93c362f135b67eb160a33b486b2e66802aab3097d2d21e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StepOptimize.exe

        • Path C:\Users\Admin\Desktop\StepOptimize.exe
        • Size 19.7MB
        • SHA256 7b9854287599b2243b11b0822d64e3416444aa5219e2853f4b85471d9f2764b9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StepOptimize.exe

        • Path C:\Users\Admin\Desktop\StepOptimize.exe
        • Size 22.9MB
        • SHA256 294e9325804ea15296c44b956c6b17f3baabf932b2bdb560195bcab9135ab7dc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StepOptimize.exe

        • Path C:\Users\Admin\Desktop\StepOptimize.exe
        • Size 26.2MB
        • SHA256 afd525da0e1a346c2dd52bff47cc9a87bcd37a086cfed1fdc12bfe4923960349
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StepOptimize.exe

        • Path C:\Users\Admin\Desktop\StepOptimize.exe
        • Size 29.4MB
        • SHA256 59c178c198a076e8bda4594bfcdeb3095df5157c09ebd8ab04a7dcb2b28aafff
        • MD5 SHA1 SHA512 SSDEEP TLSH

        qap`g`v~dtlq

        • Path C:\Users\Admin\Desktop\qap`g`v~dtlq
        • Size 10B
        • SHA256 cd07e6314add7c3c97fb4ce8b13bf3ecb0a9c5c7dda585d4e1b080c156fb8ae7
        • MD5 SHA1 SHA512

        qap`g`v~dtlq

        • Path C:\Users\Admin\Desktop\qap`g`v~dtlq
        • Size 10B
        • SHA256 97ee870d36fd26606cf96b975964684b7af78c72d4cdc2984f11ae1c4d5fcb5b
        • MD5 SHA1 SHA512

        qap`g`v~dtlq

        • Path C:\Users\Admin\Desktop\qap`g`v~dtlq
        • Size 10B
        • SHA256 b4e172d47dfd90c66170fc825fd4c81b7452332c3117a94b236e7895e7dde2c2
        • MD5 SHA1 SHA512

        qap`g`v~dtlq

        • Path C:\Users\Admin\Desktop\qap`g`v~dtlq
        • Size 10B
        • SHA256 229e363671197cfcee0497029f39499364474b3d4a758d2eea29767cea9912e7
        • MD5 SHA1 SHA512

        qap`g`v~dtlq

        • Path C:\Users\Admin\Desktop\qap`g`v~dtlq
        • Size 10B
        • SHA256 06d4c3ace47385388ba7a8babe970b416096360caa8da817f16ad7216a5ccf99
        • MD5 SHA1 SHA512

        qap`g`v~dtlq

        • Path C:\Users\Admin\Desktop\qap`g`v~dtlq
        • Size 10B
        • SHA256 eadcf8181286d1db6307d66faa73a898d80b2a79900e26134e4791d6b6ccedce
        • MD5 SHA1 SHA512

        svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe

        • Path C:\Users\Public\Documents\Microsoft\Windows\Logs\svchost_AAACACABBACBACBCACBCCAACCABBCCAAABACCCCABCCABAAAAAACACA.exe
        • Size 3.2MB
        • SHA256 e8664cb509d574160d429fa3c6fc7121a79e3c3f3afb3fd244d980a752399f43
        • MD5 SHA1 SHA512 SSDEEP TLSH

        virus_log.txt

        • Path C:\Users\Public\Documents\Microsoft\Windows\Logs\virus_log.txt
        • Size 934B
        • SHA256 494d77cab278d77880fe49bdc0cd67e99e3806161f0c8ff448fc97a049e018f4
        • MD5 SHA1 SHA512 TLSH

        memory/1572-36-0x0000000000390000-0x00000000003B1000-memory.dmp

        memory/1572-90-0x0000000000390000-0x00000000003B1000-memory.dmp

        memory/1572-10-0x0000000000390000-0x00000000003B1000-memory.dmp

        memory/1572-23-0x0000000000390000-0x00000000003B1000-memory.dmp

        memory/1572-62-0x0000000000390000-0x00000000003B1000-memory.dmp

        memory/1736-53-0x0000000000890000-0x00000000008B1000-memory.dmp

        memory/1736-76-0x0000000000890000-0x00000000008B1000-memory.dmp

        memory/1736-35-0x0000000000890000-0x00000000008B1000-memory.dmp

        memory/1736-118-0x0000000000890000-0x00000000008B1000-memory.dmp

        memory/2464-87-0x0000000005A90000-0x0000000005A91000-memory.dmp

        memory/4168-111-0x0000000000BC0000-0x0000000000BE1000-memory.dmp

        memory/5164-95-0x0000000000890000-0x00000000008B1000-memory.dmp