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Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
28/09/2024, 01:30
Behavioral task
behavioral1
Sample
35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral2
Sample
35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
General
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Target
35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe
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Size
37KB
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MD5
7bb7d53306c6f5fdd2ce65ef1d2f7dbb
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SHA1
90028422f4d3ef115c30040ec06bd127e99bbfbd
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SHA256
35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412
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SHA512
6d6fca12927c0426ffc5c5f62d368448b62bc2787cdf93bba6dcc2566f474b5b7b21c3c99dad1b8c4431292a515f0f6c41ce74cc1f38d6af1f6fd7c199296556
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SSDEEP
384:PJucP97LsikX9zNf/1uyU7/I3/9sWA7zrAF+rMRTyN/0L+EcoinblneHQM3epzXR:rPlil1lU7/I1dAnrM+rMRa8Nuskt
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3976 netsh.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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation 35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\906b0c82e2fdcdc83089be513c894263.exe System.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\906b0c82e2fdcdc83089be513c894263.exe System.exe -
Executes dropped EXE 1 IoCs
pid Process 740 System.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\906b0c82e2fdcdc83089be513c894263 = "\"C:\\Windows\\System.exe\" .." System.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\906b0c82e2fdcdc83089be513c894263 = "\"C:\\Windows\\System.exe\" .." System.exe -
Drops autorun.inf file 1 TTPs 5 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File created D:\autorun.inf System.exe File created F:\autorun.inf System.exe File opened for modification F:\autorun.inf System.exe File created C:\autorun.inf System.exe File opened for modification C:\autorun.inf System.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\System.exe 35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe File opened for modification C:\Windows\System.exe 35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe File opened for modification C:\Windows\System.exe System.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 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 System.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe 740 System.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 740 System.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe Token: 33 740 System.exe Token: SeIncBasePriorityPrivilege 740 System.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3248 wrote to memory of 740 3248 35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe 82 PID 3248 wrote to memory of 740 3248 35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe 82 PID 3248 wrote to memory of 740 3248 35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe 82 PID 740 wrote to memory of 3976 740 System.exe 88 PID 740 wrote to memory of 3976 740 System.exe 88 PID 740 wrote to memory of 3976 740 System.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe"C:\Users\Admin\AppData\Local\Temp\35b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3248 -
C:\Windows\System.exe"C:\Windows\System.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops autorun.inf file
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:740 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\System.exe" "System.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3976
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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
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event 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
37KB
MD57bb7d53306c6f5fdd2ce65ef1d2f7dbb
SHA190028422f4d3ef115c30040ec06bd127e99bbfbd
SHA25635b85fa3d704f84a318b4fd3c79fd5e0de4d13a166ae2950878066651c02e412
SHA5126d6fca12927c0426ffc5c5f62d368448b62bc2787cdf93bba6dcc2566f474b5b7b21c3c99dad1b8c4431292a515f0f6c41ce74cc1f38d6af1f6fd7c199296556