Analysis
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max time kernel
111s -
max time network
110s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20/11/2024, 02:43
Behavioral task
behavioral1
Sample
8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe
Resource
win10v2004-20241007-en
General
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Target
8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe
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Size
63KB
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MD5
01f7c5322bd3b6129c48969e3254a9f7
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SHA1
caa3978e1784c0071c66138a04f70f91daeb817b
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SHA256
8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463
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SHA512
95cfa7f44d2e08b70e7b91e3110cbe872764deb1fbf6f02551ee2b2ca11c3cca61a5d1196baeb7bc7246a373f9008bff8e74976b960a952ef6fabab7f3cdb640
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SSDEEP
1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIIIn:8g585LpPCrQt7F84IIIIIIIIIIIIIIIx
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe spoolfm.exe" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe spoolfm.exe" spoolfm.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe spoolfm.exe" spoolfm.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (int) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" spoolfm.exe -
Disables RegEdit via registry modification 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (int) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" spoolfm.exe -
resource yara_rule behavioral2/files/0x0018000000023c3e-3.dat aspack_v212_v242 -
Executes dropped EXE 2 IoCs
pid Process 1840 spoolfm.exe 3264 spoolfm.exe -
Modifies system executable filetype association 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Service Host = "C:\\Windows\\spoolfm.exe" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe -
Drops file in Windows directory 40 IoCs
description ioc Process File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton SystemWorks 2004 Keygen.exe spoolfm.exe File opened for modification C:\Windows\svchost.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Keygen.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Crack.exe spoolfm.exe File created C:\Windows\spoolfm.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Studio MX 2004 AllApps Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Microsoft Office System Professional V2003 Crack.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton SystemWorks 2004 Keygen.exe spoolfm.exe File opened for modification C:\Windows\spoolfm.exe 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe File created C:\Windows\svchost.exe 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe File created C:\Windows\message.htm spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Microsoft Office System Professional V2003 Keygen.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee Personal Firewall Plus 2004 Crack.exe spoolfm.exe File opened for modification C:\Windows\svchost.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ spoolfm.exe File created C:\Windows\message.dat spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Microsoft Office System Professional V2003 Keygen.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Microsoft Office System Professional V2003 Crack.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\iMesh 4.2 Ad Remover Crack.exe spoolfm.exe File created C:\Windows\spoolfm.exe 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe File created C:\Windows\spoolfm.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Nero Burning ROM v6.0.0.19 Ultra Edition Crack.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee Personal Firewall Plus 2004 Crack.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Keygen.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Studio MX 2004 AllApps Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Crack.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Nero Burning ROM v6.0.0.19 Ultra Edition Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\iMesh 4.2 Ad Remover Crack.exe spoolfm.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe spoolfm.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe spoolfm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolfm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolfm.exe -
Modifies data under HKEY_USERS 13 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System spoolfm.exe Key created \REGISTRY\USER\.DEFAULT\Software spoolfm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft spoolfm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows spoolfm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion spoolfm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies spoolfm.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" spoolfm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached spoolfm.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{40DD6E20-7C17-11CE-A804-00AA003CA9F6} {000214FC-0000-0000-C000-000000000046} 0xFFFF = 01000000000000007bcd9d09f63adb01 spoolfm.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\TelemetrySalt = "0" spoolfm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced spoolfm.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" spoolfm.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer spoolfm.exe -
Modifies registry class 12 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\Shell\open\command 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" /S" 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3264 spoolfm.exe 3264 spoolfm.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2364 wrote to memory of 1840 2364 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe 83 PID 2364 wrote to memory of 1840 2364 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe 83 PID 2364 wrote to memory of 1840 2364 8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe"C:\Users\Admin\AppData\Local\Temp\8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe"1⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Windows\spoolfm.exe"C:\Windows\spoolfm.exe" -xInstallOurNiceServicesYes2⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1840
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C:\Windows\spoolfm.exeC:\Windows\spoolfm.exe -xStartOurNiceServicesYes1⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:3264
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Change Default File Association
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
4Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
63KB
MD501f7c5322bd3b6129c48969e3254a9f7
SHA1caa3978e1784c0071c66138a04f70f91daeb817b
SHA2568f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463
SHA51295cfa7f44d2e08b70e7b91e3110cbe872764deb1fbf6f02551ee2b2ca11c3cca61a5d1196baeb7bc7246a373f9008bff8e74976b960a952ef6fabab7f3cdb640