Analysis
- max time kernel
36s - max time network
71s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/06/2026, 18:48
Behavioral task
behavioral1
Sample
plikan.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
plikan.exe
Resource
win11ltsc2024-20260617-en
General
- Target plikan.exe
- Size 2.4MB
- Sample260620-xf997agy8j
- SHA256 66ed1a3ba95e7e55d74ff600cf62feb38704e2aa2b344d9ad08143d98383e22d
- MD5 3f75d30f0faad860ac70e67d812f1ba4
- SHA1 328fa94a0d9cd77b6f73568208de0ad001d923f4
- SHA512 1dd60788ff5ac4df5835bb5bf5e4f78575a415dcca02a57f2474f7bc4725a37655a5f230dcd600debff33b98befbcd0194bd45a9887c93514798271fb88d21a2
- SSDEEP 49152:N3lPmP9cc0oO2J3Y2pWEceCCMT/8Avh4rOE3/De2jn3vr:NtEacW2Jo2Qb8AZMeo
- TLSH T185B5234853FA0A1BF67A4EBAA9B540108BB2BA27CC12D35D06A411CD1473BCD97B5F73
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Creates new service(s) 2 TTPs
- Modifies file permissions 1 TTPs 1 IoCs
pid Process 2492 icacls.exe - Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 api.ipify.org 1 ip-api.com 2 api.ipify.org - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\System32\winlogon_fix.exe plikan.exe File opened for modification C:\Windows\System32\winlogon_fix.exe plikan.exe - Costura .NET executable packer 1 IoCs
Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.
resource yara_rule behavioral2/files/0x001300000001c504-54.dat costura - Launches sc.exe 2 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2920 sc.exe 2956 sc.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Runs net.exe
- Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 248 schtasks.exe 3032 schtasks.exe 620 schtasks.exe 256 schtasks.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1428 plikan.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1428 wrote to memory of 2492 1428 plikan.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\plikan.exe"C:\Users\Admin\AppData\Local\Temp\plikan.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Windows\System32\icacls.exe"C:\Windows\System32\icacls.exe" "C:\Windows\System32\winlogon_fix.exe" /deny *S-1-1-0:(DE,DC,WDAC,WO,WD,AS)2⤵
- Modifies file permissions
PID:2492
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe"2⤵PID:3348
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /F /TN "WinUpdate" /TR ""C:\Windows\System32\winlogon_fix.exe"" /SC ONLOGON /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
PID:256
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /F /TN "WinCheck" /TR ""C:\Windows\System32\winlogon_fix.exe"" /SC HOURLY /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
PID:248
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /F /TN "WinStartup" /TR ""C:\Windows\System32\winlogon_fix.exe"" /SC ONSTART /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
PID:620
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /F /TN "WinIdle" /TR ""C:\Windows\System32\winlogon_fix.exe"" /SC ONIDLE /I 5 /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
PID:3032
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" create WinDefSrv binPath= "C:\Windows\System32\winlogon_fix.exe" start= auto3⤵
- Launches sc.exe
PID:2956
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C:\Windows\System32\sc.exe"C:\Windows\System32\sc.exe" create WinUpdSrv binPath= "C:\Windows\System32\winlogon_fix.exe" start= auto3⤵
- Launches sc.exe
PID:2920
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'msi' -ErrorAction SilentlyContinue"3⤵PID:3716
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'sys' -ErrorAction SilentlyContinue"3⤵PID:5088
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'drv' -ErrorAction SilentlyContinue"3⤵PID:3500
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'ocx' -ErrorAction SilentlyContinue"3⤵PID:2948
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'cpl' -ErrorAction SilentlyContinue"3⤵PID:3064
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'scr' -ErrorAction SilentlyContinue"3⤵PID:2888
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'bat' -ErrorAction SilentlyContinue"3⤵PID:3160
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'cmd' -ErrorAction SilentlyContinue"3⤵PID:5060
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'com' -ErrorAction SilentlyContinue"3⤵PID:2704
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'vbs' -ErrorAction SilentlyContinue"3⤵PID:5392
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'vbe' -ErrorAction SilentlyContinue"3⤵PID:2176
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'js' -ErrorAction SilentlyContinue"3⤵PID:3456
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'jse' -ErrorAction SilentlyContinue"3⤵PID:5016
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'wsf' -ErrorAction SilentlyContinue"3⤵PID:1688
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'wsh' -ErrorAction SilentlyContinue"3⤵PID:5180
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'php4' -ErrorAction SilentlyContinue"3⤵PID:3452
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'php5' -ErrorAction SilentlyContinue"3⤵PID:3944
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'phtml' -ErrorAction SilentlyContinue"3⤵PID:3368
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'asp' -ErrorAction SilentlyContinue"3⤵PID:3288
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'aspx' -ErrorAction SilentlyContinue"3⤵PID:3764
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "powershell.exe" -Command "Add-MpPreference -ExclusionExtension 'ascx' -ErrorAction SilentlyContinue"3⤵PID:2692
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C:\Windows\System32\Wbem\wmic.exe"wmic.exe" /namespace:\\root\Microsoft\Windows\Defender path MSFT_MpPreference call Add ExclusionPath='C:'3⤵PID:7528
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C:\Windows\System32\winlogon_fix.exe"C:\Windows\System32\winlogon_fix.exe" "cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath 'F:'"3⤵PID:1116
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C:\Windows\System32\netsh.exe"C:\Windows\System32\netsh.exe" wlan disconnect3⤵PID:4400
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C:\Windows\System32\net.exe"C:\Windows\System32\net.exe" stop WinHttpAutoProxySvc /y3⤵PID:9168
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C:\Windows\system32\userinit.exeuserinit.exe1⤵PID:7776
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C:\Windows\System32\winlogon_fix.exeC:\Windows\System32\winlogon_fix.exe1⤵PID:7784
Network
MITRE ATT&CK Enterprise v16
Execution
Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Persistence
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\zov_debug.log
- Size 1KB
- SHA256 b853021d0333beeed2acebfc63bbc772d574e615ab354ef978e7d05c43ef3796
- MD5 10662636020c4950f13cf987dc45d8f8
- SHA1 6d7b6afa0e6884c75aff6b6b9aa8bae95d3ab86a
- SHA512 53a1984811d0fd3250d6cb369fca08cae796ff469f325ee09ecdef333649263dc2a84de872d23068ceb69997f0167e75f869e59d9f494a99cf9b3701b8bde1e5
- TLSH T18B11E13407F877BB6A0D2442C053D91D1564F96E1FE3D971A393B4FA7801E010ECAB92
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\zov_debug.log
- Size 20KB
- SHA256 c7b9569e5fbd77c1561df4074b3f61b59e457f4f80f0f0adc61a0464b6e686b7
- MD5 644f506867ce38dc302e230f152fa859
- SHA1 b7dfb270f190252ae32e0fcdaa372dd6487d94d8
- SHA512 ca02679fab2a194025b61a946bf546f6239918f8cc552f981ff01d778d6fa756e4f550b5f60164c2c0134f494a91710be29fd68a6a6306e7a8e74bf7cb9559cc
- SSDEEP 96:oaKkHfbkGFEWMPK/yVGbvBjS3XVzP7y6guTHpie5OtJUd5m5uZky+ieHNMYsYnYz:nEWBFg5UeVb287gVR5v45h2w7Eq
- TLSH T1F492BE7007BCB2FBBA6A0445D367E92E1568F45E19C3FE60639AB4F0B911D0A1FC1749
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\zov_debug.log
- Size 1KB
- SHA256 8b84592231e163d588d0ca82191fa8a9b01f1efaf6fd8c582c9b7adefbe9ae2b
- MD5 5684d2fd4d3fd1fb0375d3094fcc6cb8
- SHA1 2ad20fee9428a9ddefb4135a0ba995a880dcaf94
- SHA512 a8b51c4dccaa2c151a070f092e7b5a82232c27eb9d3298fcd83908d8de694b9e71a1cf57a114ff261946c3a780e3bdf4bbbe813490b97957093af5c9921386e2
- TLSH T15F41843807F836FBBE0E60429153DE1C1964F46C2BD3DD70A3ABA4F97804E021AC5756
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\zov_debug.log
- Size 2KB
- SHA256 7c279bc0f30db506102fd2bb5a6b186a10c353e2c73290cfc725038de12e31d9
- MD5 538cd37eacd21faf0f300415868da36b
- SHA1 d1fd349cbc9f476b17676a1e0efa900cb1b5a49c
- SHA512 9e571d397f6e172fb12eb28af78ad7786fa1cbf6cdac4da5082414d11bbf0de6fa99a6a169e365fccf8dab5e9ce4227ed9529a40d236a8055767f0f163117b73
- TLSH T1D351433807F873FBAA1E2042D257DE1C1564F45D1FC3E960A3ABA4F9B900E021AC5756
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\zov_debug.log
- Size 3KB
- SHA256 21640757d2849fbf355a2ec2af10b4ffcc1cecd40110917924bdf4c8f1958a75
- MD5 f52f45823f957e76ca4dfdaaea522d35
- SHA1 dabec6eebe0dbcd08435df6a9195e585218db8c5
- SHA512 750ec6e37d32790fff937361e5d5d1a9d01d891b564da61802917a60799b1ebbfcea40319e00ab574e9bfab5fd907c3a537768736b236999570af4330316a430
- TLSH T1EC71013807FC72FBBE2A1041D29BDE1D2568F05D2AC3ED60A3EB64F5B911D021AC6756
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\zov_debug.log
- Size 4KB
- SHA256 4167463686142e5ded0e52c7aefd216cccc039baae7302412b47c3298ee8e840
- MD5 7c547d2c9486e911ae21ef5927b06b8c
- SHA1 4f2e0d2d6f55d2cf2d66ac08985b387d53cd2a98
- SHA512 6e805891acdf30f89404446dbd7c6641afc7e151129a2d922011a4a707180d51530893db1a63a1dd2a5b45efc966ba65e7bb289800cbae5b5cbc4f509fa6c3ac
- SSDEEP 96:oaKkHfbkGFEWMPK/yVGbvBjS3XVzP7y6guTHpi:nEWBFg5E
- TLSH T16FA1CF3403BC72FBAF1A1541C29BDA6D2568F05D1BC3ED60A3EB60F5A860D050FC6B55
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\winlogon_fix.exe
- Size 2.2MB
- SHA256 d0741508e8a7d84f190350a5be2f4aff5b3d8526cbabdaccc5299fd7d85be862
- MD5 5e58525c8a5643f16b898fa13cf1ac40
- SHA1 ba3f978e1f693dcabfdbe111378b88bb5523cd67
- SHA512 d6fee162c0dc9d28f6b0a2be1f2967e14cd61f9fb219410e04da36bb149c5c8b8f0a3d28f1b257f547ecdaf2760c749db83a90aa874eb1ce67d36f4da9c34870
- SSDEEP 49152:N3lPmP9cc0oO2J3Y2pWEceCCMT/8Avh4rOE3/De2jn3vH:NtEacW2Jo2Qb8AZMeof
- TLSH T16CB5334CA72B8D2BF63D94FFC2A65112C3F1A0278A42E3550EA851D125F7BCD22EDD91
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\winlogon_fix.exe
- Size 2.2MB
- SHA256 bbc1d51564aa35a09fd67c5b8372f4c2c446cc997703678fb0ed9059987dda36
- MD5 5cee4a1431e4162dd734d88bdbb0b985
- SHA1 7fa1bea9877b7687d9020660f2d39b9f61333b44
- SHA512 d3781c2fe483d8697e26ea6a5b045c825882646d7657e83839d3e0e5f004e804c0fac78d4e9f15e8a3a735b947ae600106a0b5e88f9cc68fa52bf0e4343c1dab
- SSDEEP 49152:N3lPmP9cc0oO2J3Y2pWEceCCMT/8Avh4rOE3/De2jn3U:NtEacW2Jo2Qb8AZMeoU
- TLSH T15AB5334D963B8D2BF63D95FFC2A25111C3F190278A42E3590EA852D165F3BCD22EDC92
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\winlogon_fix.exe
- Size 2.3MB
- SHA256 9a4dd189d43eeb940fa9f5944eaac5fed4562f31899caf5020c8e42dfaabcd72
- MD5 b7b6c4e97bb16c7a37f40797c5ae83b4
- SHA1 9bac9db176926965ddea5c0d56af2d6da2b26af5
- SHA512 e1c13041bf4dad377831a198408dd5ad571db4d7e44dac1b7bc1836a7de41ebff1c97fa923abc6fd498db1b81e4b3e7318a568f30e76d6a91c520cc75fb64faa
- SSDEEP 49152:N3lPmP9cc0oO2J3Y2pWEceCCMT/8Avh4rOE3/De2jn3vrR:NtEacW2Jo2Qb8AZMeo1
- TLSH T150B5334C533B8E2BF63C85FBC2A55111C7B192178903E75A4EE862D065B77CE23ED8A1
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\winlogon_fix.exe
- Size 2.4MB
- SHA256 66ed1a3ba95e7e55d74ff600cf62feb38704e2aa2b344d9ad08143d98383e22d
- MD5 3f75d30f0faad860ac70e67d812f1ba4
- SHA1 328fa94a0d9cd77b6f73568208de0ad001d923f4
- SHA512 1dd60788ff5ac4df5835bb5bf5e4f78575a415dcca02a57f2474f7bc4725a37655a5f230dcd600debff33b98befbcd0194bd45a9887c93514798271fb88d21a2
- SSDEEP 49152:N3lPmP9cc0oO2J3Y2pWEceCCMT/8Avh4rOE3/De2jn3vr:NtEacW2Jo2Qb8AZMeo
- TLSH T185B5234853FA0A1BF67A4EBAA9B540108BB2BA27CC12D35D06A411CD1473BCD97B5F73
- MD5 SHA1 SHA512 SSDEEP TLSH