Analysis
- user interaction
yes - max time kernel
36s - max time network
41s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
18/04/2026, 22:31
Static task
static1
Behavioral task
behavioral1
Sample
skid_locker.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
skid_locker.exe
Resource
win11-20260130-en
General
- Target skid_locker.exe
- Size 1.4MB
- Sample260418-2ffsssg12k
- SHA256 9c745f95a09b37bc0486bf0f92aad4a3d5548a939c086b93d6235d34648e683f
- MD5 46fa8d029d3c473125ef6ce5adff3c54
- SHA1 be524f751cf4d1892f7637c527ca36c09955b145
- SHA512 48ef74aacac10a007b96282b0678178e95a77f34fe79ba66fc0dbba9f3f12e27bd3acfacc5965094f67fe1e820cd7908d0d776e086097fd9cb581a67170ad34b
- SSDEEP 24576:DuC9IrMxg3Ggy7iTrvxylIzZ08535e3jV0HRCM3m:DuC9+Mxg3Ggy7yvxy+zyelHRN
- TLSH T187653B1BE2A385ECC16FD07487579B72BE30B81905347D2E1BA4DB322F21E509B6EB54
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Disables Task Manager via registry modification
- Disables one or more Microsoft Defender components 1 TTPs 2 IoCs
Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.
pid Process 2392 powershell.exe 696 powershell.exe - Impair Defenses: Safe Mode Boot 1 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\skid_locker skid_locker.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\skid_locker\ = "Service" skid_locker.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\skid_locker skid_locker.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\skid_locker\ = "Service" skid_locker.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\skid_locker = "C:\\Users\\Admin\\AppData\\Local\\Temp\\skid_locker.exe" skid_locker.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\skid_locker = "C:\\Users\\Admin\\AppData\\Local\\Temp\\skid_locker.exe" skid_locker.exe -
pid Process 696 powershell.exe 2392 powershell.exe - Enumerates connected drives 3 TTPs 44 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\H: skid_locker.exe File opened (read-only) \??\E: skid_locker.exe File opened (read-only) \??\G: skid_locker.exe File opened (read-only) \??\W: skid_locker.exe File opened (read-only) \??\E: skid_locker.exe File opened (read-only) \??\I: skid_locker.exe File opened (read-only) \??\Z: skid_locker.exe File opened (read-only) \??\B: skid_locker.exe File opened (read-only) \??\I: skid_locker.exe File opened (read-only) \??\S: skid_locker.exe File opened (read-only) \??\K: skid_locker.exe File opened (read-only) \??\X: skid_locker.exe File opened (read-only) \??\U: skid_locker.exe File opened (read-only) \??\G: skid_locker.exe File opened (read-only) \??\X: skid_locker.exe File opened (read-only) \??\A: skid_locker.exe File opened (read-only) \??\B: skid_locker.exe File opened (read-only) \??\Q: skid_locker.exe File opened (read-only) \??\P: skid_locker.exe File opened (read-only) \??\N: skid_locker.exe File opened (read-only) \??\P: skid_locker.exe File opened (read-only) \??\S: skid_locker.exe File opened (read-only) \??\H: skid_locker.exe File opened (read-only) \??\V: skid_locker.exe File opened (read-only) \??\R: skid_locker.exe File opened (read-only) \??\R: skid_locker.exe File opened (read-only) \??\Y: skid_locker.exe File opened (read-only) \??\U: skid_locker.exe File opened (read-only) \??\J: skid_locker.exe File opened (read-only) \??\L: skid_locker.exe File opened (read-only) \??\O: skid_locker.exe File opened (read-only) \??\J: skid_locker.exe File opened (read-only) \??\T: skid_locker.exe File opened (read-only) \??\M: skid_locker.exe File opened (read-only) \??\Y: skid_locker.exe File opened (read-only) \??\K: skid_locker.exe File opened (read-only) \??\L: skid_locker.exe File opened (read-only) \??\Q: skid_locker.exe File opened (read-only) \??\W: skid_locker.exe File opened (read-only) \??\Z: skid_locker.exe File opened (read-only) \??\O: skid_locker.exe File opened (read-only) \??\V: skid_locker.exe File opened (read-only) \??\T: skid_locker.exe File opened (read-only) \??\A: skid_locker.exe - Interacts with shadow copies 3 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3528 vssadmin.exe 4364 vssadmin.exe - Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2392 powershell.exe 2392 powershell.exe 2540 skid_locker.exe 2540 skid_locker.exe 696 powershell.exe 696 powershell.exe 4184 skid_locker.exe 4184 skid_locker.exe - Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeDebugPrivilege 2392 powershell.exe Token: SeBackupPrivilege 4908 vssvc.exe Token: SeRestorePrivilege 4908 vssvc.exe Token: SeAuditPrivilege 4908 vssvc.exe Token: SeDebugPrivilege 696 powershell.exe Token: SeBackupPrivilege 3684 vssvc.exe Token: SeRestorePrivilege 3684 vssvc.exe Token: SeAuditPrivilege 3684 vssvc.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2540 wrote to memory of 2392 2540 skid_locker.exe 86 PID 2540 wrote to memory of 4364 2540 skid_locker.exe 88 PID 4184 wrote to memory of 696 4184 skid_locker.exe 96 PID 4184 wrote to memory of 3528 4184 skid_locker.exe 98 - Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\skid_locker.exe"C:\Users\Admin\AppData\Local\Temp\skid_locker.exe"1⤵
- Impair Defenses: Safe Mode Boot
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Set-MpPreference -DisableRealtimeMonitoring $true -DisableBehaviorMonitoring $true -DisableIOAVProtection $true -DisableScriptScanning $true"2⤵
- Disables one or more Microsoft Defender components
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2392
-
-
C:\Windows\SYSTEM32\vssadmin.exevssadmin delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:4364
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4908
-
C:\Users\Admin\AppData\Local\Temp\skid_locker.exeC:\Users\Admin\AppData\Local\Temp\skid_locker.exe1⤵
- Impair Defenses: Safe Mode Boot
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4184 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Set-MpPreference -DisableRealtimeMonitoring $true -DisableBehaviorMonitoring $true -DisableIOAVProtection $true -DisableScriptScanning $true"2⤵
- Disables one or more Microsoft Defender components
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:696
-
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:3528
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3684
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Windows Management Instrumentation
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Indicator Removal
2File Deletion
2Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
- MD5 d85ba6ff808d9e5444a4b369f5bc2730
- SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
- SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
- TLSH T1CE51EE323375B1E888167F071E681A8053BF4355EA94AF1CB698621ED93641B9F222F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 944B
- SHA256 9417644a8d49effdbc6a120b8d32093626b2ef9e8fe65d2c3163e3b3741a9629
- MD5 d5e147edfabd7f129d7206d4ee8c4242
- SHA1 a4a26e1793fe331b20a56e97c930f343a92be728
- SHA512 ec2530e8b7f2a9a916a94bf0d3a8c830bc258e2b73b5feacb99fbbeda40bf45d20931dded36fc24039a55e3c35cc150bc88e4837339f4db696508745c18f64c7
- TLSH T1B5112223F38C8921DC96563A509DAC5172B586CB81AEDF9F7FC0D210A1BF584CB61294
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n1fjpytv.aws.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH