Analysis

  • max time kernel
    149s
  • max time network
    115s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    01/06/2026, 17:14

General

  • Target
    bluewing emulator.exe
  • Size 2.1MB
  • Sample260601-vr93fsbs4w
  • SHA256 0946747a01ca9e3a4133c03bfa112b13b2066dd4459191984442eff3fa46978c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Possible privilege escalation attempt 28 IoCs
  • Modifies file permissions 1 TTPs 28 IoCs
  • Drops file in Program Files directory 3 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 64 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\bluewing emulator.exe
    "C:\Users\Admin\AppData\Local\Temp\bluewing emulator.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3296
    • C:\Windows\SYSTEM32\takeown.exe
      takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3624
    • C:\Windows\SYSTEM32\icacls.exe
      icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:5768
    • C:\Windows\SYSTEM32\schtasks.exe
      schtasks /query /tn "VgcYamlGuard"
      2⤵
        PID:4940
      • C:\Windows\SYSTEM32\schtasks.exe
        schtasks /delete /tn "VgcYamlGuard" /f
        2⤵
          PID:5208
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /create /tn "VgcYamlGuard" /tr "\"C:\Users\Admin\AppData\Local\Temp\bluewing emulator.exe\" --patch-yaml" /sc onstart /ru SYSTEM /f
          2⤵
          • Scheduled Task/Job: Scheduled Task
          PID:5700
        • C:\Windows\SYSTEM32\takeown.exe
          takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:2832
        • C:\Windows\SYSTEM32\icacls.exe
          icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:5652
        • C:\Windows\SYSTEM32\takeown.exe
          takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:1864
        • C:\Windows\SYSTEM32\icacls.exe
          icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:6076
        • C:\Windows\SYSTEM32\takeown.exe
          takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:4356
        • C:\Windows\SYSTEM32\icacls.exe
          icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:2632
        • C:\Windows\SYSTEM32\takeown.exe
          takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:3516
        • C:\Windows\SYSTEM32\icacls.exe
          icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:5040
        • C:\Windows\SYSTEM32\takeown.exe
          takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:4236
        • C:\Windows\SYSTEM32\icacls.exe
          icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:4124
        • C:\Windows\SYSTEM32\takeown.exe
          takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:2848
        • C:\Windows\SYSTEM32\icacls.exe
          icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:240
      • C:\Users\Admin\AppData\Local\Temp\bluewing emulator.exe
        "C:\Users\Admin\AppData\Local\Temp\bluewing emulator.exe"
        1⤵
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2056
        • C:\Windows\system32\takeown.exe
          takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:3832
        • C:\Windows\system32\icacls.exe
          icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
          2⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          PID:3724
        • C:\Windows\system32\schtasks.exe
          schtasks /query /tn "VgcYamlGuard"
          2⤵
            PID:3080
          • C:\Windows\system32\takeown.exe
            takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:3048
          • C:\Windows\system32\icacls.exe
            icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:5352
          • C:\Windows\system32\takeown.exe
            takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:5532
          • C:\Windows\system32\icacls.exe
            icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:3620
          • C:\Windows\system32\takeown.exe
            takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:3236
          • C:\Windows\system32\icacls.exe
            icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:2600
          • C:\Windows\system32\takeown.exe
            takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:4748
          • C:\Windows\system32\icacls.exe
            icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:3136
          • C:\Windows\system32\takeown.exe
            takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:3576
          • C:\Windows\system32\icacls.exe
            icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:1224
          • C:\Windows\system32\takeown.exe
            takeown /f "C:\Program Files\Riot Vanguard\vanguard.yaml" /a >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:3752
          • C:\Windows\system32\icacls.exe
            icacls "C:\Program Files\Riot Vanguard\vanguard.yaml" /grant Administrators:F /t /c /q >nul 2>&1
            2⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:1004

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              vanguard.yaml

              • Path C:\Program Files\Riot Vanguard\vanguard.yaml
              • Size 173B
              • SHA256 6a0379629c24895bcc96211c084ce2d466c639faad5065022f503c77807b8c1f
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 235B
              • SHA256 4d21e173f31263dbebc70c07f17157f2bca0a1248b2007d910682f14ca70bd10
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 367B
              • SHA256 0a19ec4fb031d52ad0965fda6c6a694f263b446d6899a8327346d566d855976e
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 411B
              • SHA256 7bba004972efa1a78ee6d73ce6427b77c1a5b8de234441fe0bf53dbd0978dc40
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 455B
              • SHA256 f73416021defce5906532aed7c32686c0198c16d6c223e0a05126a49813f1846
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 499B
              • SHA256 c296690b04dbba34653b97547cf339020d21017d62f47fc7e3e1fa4a9739c369
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 543B
              • SHA256 04999362554d18ecf7359a74e09ae393602be23762310cb184f648e8c3308ba4
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 587B
              • SHA256 de1c52de5efa380ceb39e8b8a760038ed3020ddcd9f6a53b049985431c319d1e
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 631B
              • SHA256 cb34ea7ef9edf4f33dfee79a56aad4ba17d3b12f1c6275183a4e71634b79a73b
              • MD5 SHA1 SHA512 TLSH

              vgc_debug.log

              • Path C:\vgc_debug.log
              • Size 675B
              • SHA256 60b52e01d43dc224882d75ee12f8057d59294000435d1ec949a566e5b3455cbd
              • MD5 SHA1 SHA512 TLSH