Analysis
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max time kernel
148s -
max time network
150s -
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 07:52
Behavioral task
behavioral1
Sample
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe
Resource
win10v2004-20241007-en
General
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Target
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe
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Size
64KB
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MD5
bd27b7bfa460b44a0852c2692d519e61
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SHA1
89fe3f30e7d4074b0afb7038acbcd91783a63ae6
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SHA256
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5
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SHA512
781d01ab86c69546b30a3a2ae1f5251b3f7487bcca1482958da78413353b0dfb152226be3de9909377490d1c57eab6feca2e7aea9df274692fb833a96a187520
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SSDEEP
1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIIIN:8g585LpPCrQt7F84IIIIIIIIIIIIIIIT
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 3 IoCs
Processes:
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exeSMSSvj.exeSMSSvj.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSvj.exe" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSvj.exe" SMSSvj.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSvj.exe" SMSSvj.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
Processes:
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exeSMSSvj.exedescription ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" SMSSvj.exe -
Disables RegEdit via registry modification 2 IoCs
Processes:
SMSSvj.exe7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exedescription ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" SMSSvj.exe Set value (int) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe -
Processes:
resource yara_rule behavioral2/files/0x000b000000023ba6-3.dat aspack_v212_v242 -
Executes dropped EXE 2 IoCs
Processes:
SMSSvj.exeSMSSvj.exepid Process 3136 SMSSvj.exe 4116 SMSSvj.exe -
Modifies system executable filetype association 2 TTPs 8 IoCs
Processes:
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Service Host = "C:\\Windows\\SMSSvj.exe" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe -
Drops file in Windows directory 42 IoCs
Processes:
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exeSMSSvj.exeSMSSvj.exedescription ioc Process File created C:\Windows\SMSSvj.exe 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe File created C:\Windows\message.dat SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee VirusScan Home Edition 2004 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 Crack.exe SMSSvj.exe File created C:\Windows\SMSSvj.exe SMSSvj.exe File created C:\Windows\SMSSvj.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Studio MX 2004 AllApps Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee VirusScan Home Edition 2004 Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Dragon NaturallySpeaking 8 ISO Multilanguage Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Studio MX 2004 AllApps Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Nero Burning ROM v6.0.0.19 Ultra Edition Keygen.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NHL 2004 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\ SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Borland C++ BuilderX 1.0 Enterprise Edition Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton Antispam 2004 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NHL 2004 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Microsoft Office System Professional V2003 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Keygen.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Nero Burning ROM v6.0.0.19 Ultra Edition Keygen.exe SMSSvj.exe File opened for modification C:\Windows\SMSSvj.exe 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe File created C:\Windows\svchost.exe 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Borland C++ BuilderX 1.0 Enterprise Edition Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Microsoft Office System Professional V2003 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Dragon NaturallySpeaking 8 ISO Multilanguage Crack.exe SMSSvj.exe File opened for modification C:\Windows\svchost.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton Antispam 2004 Crack.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Keygen.exe SMSSvj.exe File opened for modification C:\Windows\svchost.exe SMSSvj.exe File created C:\Windows\message.htm SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NetObjects Fusion v7.5 Crack.exe SMSSvj.exe File opened for modification C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Keygen.exe SMSSvj.exe File created C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Keygen.exe SMSSvj.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.
Processes:
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exeSMSSvj.exeSMSSvj.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language SMSSvj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language SMSSvj.exe -
Modifies data under HKEY_USERS 13 IoCs
Processes:
SMSSvj.exedescription ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer SMSSvj.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced SMSSvj.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" SMSSvj.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System SMSSvj.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft SMSSvj.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows SMSSvj.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion SMSSvj.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies SMSSvj.exe Key created \REGISTRY\USER\.DEFAULT\Software SMSSvj.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" SMSSvj.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached SMSSvj.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 = 0100000000000000af58ff80b33cdb01 SMSSvj.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\TelemetrySalt = "5" SMSSvj.exe -
Modifies registry class 12 IoCs
Processes:
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" /S" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*" 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
SMSSvj.exepid Process 4116 SMSSvj.exe 4116 SMSSvj.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exedescription pid Process procid_target PID 1508 wrote to memory of 3136 1508 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe 83 PID 1508 wrote to memory of 3136 1508 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe 83 PID 1508 wrote to memory of 3136 1508 7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe"C:\Users\Admin\AppData\Local\Temp\7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.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:1508 -
C:\Windows\SMSSvj.exe"C:\Windows\SMSSvj.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:3136
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C:\Windows\SMSSvj.exeC:\Windows\SMSSvj.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:4116
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
MD5bd27b7bfa460b44a0852c2692d519e61
SHA189fe3f30e7d4074b0afb7038acbcd91783a63ae6
SHA2567a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5
SHA512781d01ab86c69546b30a3a2ae1f5251b3f7487bcca1482958da78413353b0dfb152226be3de9909377490d1c57eab6feca2e7aea9df274692fb833a96a187520