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Analysis
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max time kernel
145s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
28/01/2025, 05:38
Static task
static1
Behavioral task
behavioral1
Sample
0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe
Resource
win10v2004-20241007-en
General
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Target
0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe
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Size
10.7MB
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MD5
27d42e4a1a5137d5a8171fa0998feff6
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SHA1
c286cbcc0c3840a5c086016a9f432acdb2466bf5
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SHA256
0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647
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SHA512
2df5b37a8d89a632b780c2e01c0407216b66e2c9495b55d5fb7f984d6eaad409d2a1cc1f6c25f4c26b7e0c13cc89731d0f7baef1f781da642e31cea358c422db
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SSDEEP
3072:WcSKLbut7BWLMcD/FHNKZuKqtyONJvq4H6gGIvuFHrHtIxJXA4/a9t/a9t/a9t/6:gKHOWwe/RNKkK0vNdq4HZG0Wr2u
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Signatures
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Tofsee family
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Creates new service(s) 2 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1180 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\kvfibhuj\ImagePath = "C:\\Windows\\SysWOW64\\kvfibhuj\\ragrpew.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe -
Deletes itself 1 IoCs
pid Process 4268 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1140 ragrpew.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1140 set thread context of 4268 1140 ragrpew.exe 97 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2012 sc.exe 2920 sc.exe 2124 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 9 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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ragrpew.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 3016 wrote to memory of 3384 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 83 PID 3016 wrote to memory of 3384 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 83 PID 3016 wrote to memory of 3384 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 83 PID 3016 wrote to memory of 4544 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 85 PID 3016 wrote to memory of 4544 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 85 PID 3016 wrote to memory of 4544 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 85 PID 3016 wrote to memory of 2012 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 87 PID 3016 wrote to memory of 2012 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 87 PID 3016 wrote to memory of 2012 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 87 PID 3016 wrote to memory of 2920 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 90 PID 3016 wrote to memory of 2920 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 90 PID 3016 wrote to memory of 2920 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 90 PID 3016 wrote to memory of 2124 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 92 PID 3016 wrote to memory of 2124 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 92 PID 3016 wrote to memory of 2124 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 92 PID 3016 wrote to memory of 1180 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 95 PID 3016 wrote to memory of 1180 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 95 PID 3016 wrote to memory of 1180 3016 0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe 95 PID 1140 wrote to memory of 4268 1140 ragrpew.exe 97 PID 1140 wrote to memory of 4268 1140 ragrpew.exe 97 PID 1140 wrote to memory of 4268 1140 ragrpew.exe 97 PID 1140 wrote to memory of 4268 1140 ragrpew.exe 97 PID 1140 wrote to memory of 4268 1140 ragrpew.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe"C:\Users\Admin\AppData\Local\Temp\0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kvfibhuj\2⤵
- System Location Discovery: System Language Discovery
PID:3384
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ragrpew.exe" C:\Windows\SysWOW64\kvfibhuj\2⤵
- System Location Discovery: System Language Discovery
PID:4544
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create kvfibhuj binPath= "C:\Windows\SysWOW64\kvfibhuj\ragrpew.exe /d\"C:\Users\Admin\AppData\Local\Temp\0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2012
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description kvfibhuj "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2920
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start kvfibhuj2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2124
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1180
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C:\Windows\SysWOW64\kvfibhuj\ragrpew.exeC:\Windows\SysWOW64\kvfibhuj\ragrpew.exe /d"C:\Users\Admin\AppData\Local\Temp\0a00671012b4cc6d328abe79ae061427f25595a5996d78dba6522d13abb23647.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1140 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:4268
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
11.0MB
MD5cf4efd24d32d1e348762a57ee07b8229
SHA196484638eeee608118f5cbbca3e42bb50d45fe8e
SHA256176c396737c698f1088f449f5bd90a7b39a6027719314f54286c8469a85d819a
SHA512fcaf644a2e363a585247ef922a589167690fa947067d15181220d27285e128e6d2f322f4693072d9bbe0f69d78a953510f047c7da4c0b55552f094817ac02c60