Analysis
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max time kernel
110s -
max time network
98s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22/11/2024, 14:54
Behavioral task
behavioral1
Sample
f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe
Resource
win10v2004-20241007-en
General
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Target
f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe
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Size
64KB
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MD5
5ffa657143c65d04d1080a46c0506e10
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SHA1
8c5c2e30834e3b34bb198d0afdc52cdb97ce2762
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SHA256
f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6f
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SHA512
8ba7056e47d375c02f4084fb9cbcbea01fba16891dff2d1e7d6935c65f953c717a7442442b05ee467f7540d3209aff0288382ee183ced840971912e622680fa4
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SSDEEP
1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIII7:8g585LpPCrQt7F84IIIIIIIIIIIIIIIN
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 SMSSja.exe" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSja.exe" SMSSja.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSja.exe" SMSSja.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (int) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" SMSSja.exe -
Disables RegEdit via registry modification 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (int) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" SMSSja.exe -
resource yara_rule behavioral2/files/0x000d000000023bb2-3.dat aspack_v212_v242 -
Executes dropped EXE 2 IoCs
pid Process 4304 SMSSja.exe 64 SMSSja.exe -
Modifies system executable filetype association 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.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\\SMSSja.exe" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe -
Drops file in Windows directory 42 IoCs
description ioc Process File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Crack.exe SMSSja.exe File created C:\Windows\svchost.exe f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe File created C:\Windows\SMSSja.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Nero Burning ROM v6.0.0.19 Ultra Edition Crack.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NHL 2004 Crack.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Keygen.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 beta patch2 Crack.exe SMSSja.exe File created C:\Windows\message.htm SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Nero Burning ROM v6.0.0.19 Ultra Edition Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe SMSSja.exe File opened for modification C:\Windows\svchost.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 Keygen.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee VirusScan Home Edition 2004 Crack.exe SMSSja.exe File opened for modification C:\Windows\SMSSja.exe f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe File created C:\Windows\SMSSja.exe SMSSja.exe File created C:\Windows\message.dat SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Contribute 2 Crack.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\iMesh 4.2 Ad Remover Keygen.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee VirusScan Home Edition 2004 Crack.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\iMesh 4.2 Ad Remover Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Contribute 2 Crack.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Keygen.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 Keygen.exe SMSSja.exe File created C:\Windows\SMSSja.exe f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe File opened for modification C:\Windows\svchost.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Keygen.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\iMesh 4.2 Ad Remover Keygen.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Keygen.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 beta patch2 Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\iMesh 4.2 Ad Remover Crack.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NHL 2004 Crack.exe SMSSja.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Dragon NaturallySpeaking 8 ISO Multilanguage Keygen.exe SMSSja.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Dragon NaturallySpeaking 8 ISO Multilanguage Keygen.exe SMSSja.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 f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language SMSSja.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language SMSSja.exe -
Modifies data under HKEY_USERS 13 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{40DD6E20-7C17-11CE-A804-00AA003CA9F6} {000214FC-0000-0000-C000-000000000046} 0xFFFF = 01000000000000008339897fee3cdb01 SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer SMSSja.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\TelemetrySalt = "7" SMSSja.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies SMSSja.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows SMSSja.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion SMSSja.exe -
Modifies registry class 12 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" /S" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 64 SMSSja.exe 64 SMSSja.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4196 wrote to memory of 4304 4196 f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe 82 PID 4196 wrote to memory of 4304 4196 f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe 82 PID 4196 wrote to memory of 4304 4196 f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.exe"C:\Users\Admin\AppData\Local\Temp\f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6fN.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:4196 -
C:\Windows\SMSSja.exe"C:\Windows\SMSSja.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:4304
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C:\Windows\SMSSja.exeC:\Windows\SMSSja.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:64
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
64KB
MD55ffa657143c65d04d1080a46c0506e10
SHA18c5c2e30834e3b34bb198d0afdc52cdb97ce2762
SHA256f5e1507c38c7dba45a64f1e02f3dc81e526bd72a42c9d16c29152f3894002e6f
SHA5128ba7056e47d375c02f4084fb9cbcbea01fba16891dff2d1e7d6935c65f953c717a7442442b05ee467f7540d3209aff0288382ee183ced840971912e622680fa4