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Analysis
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max time kernel
19s -
max time network
24s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
12/02/2024, 01:02
Static task
static1
Behavioral task
behavioral1
Sample
95d6c2b996bd088f28f8928187dfc835.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
95d6c2b996bd088f28f8928187dfc835.exe
Resource
win10v2004-20231215-en
Errors
General
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Target
95d6c2b996bd088f28f8928187dfc835.exe
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Size
244KB
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MD5
95d6c2b996bd088f28f8928187dfc835
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SHA1
bc0cb69e9cc893fa862dbf981f271c71b1b72341
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SHA256
bcfb48a0abb04179fa6bee4af69707d4dcc7dc2748214cf5f9a12c76eca6d2a3
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SHA512
f8d95ebb83ef4f94868d9983a255b04c448fb529dc9d2f29c414b7718575aab75be2f3122e5f5a06266d2549947d043e2fde2216914cdcfc44cc6ae7d073864b
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SSDEEP
6144:gLCdTnGMN0wQY+NCb8NlLClQX8vE6Hs9dPd7s8Gmc:VRm7C8vLX8v+fd7sXV
Malware Config
Signatures
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Sets DLL path for service in the registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Iprip\Parameters\ServiceDll = "C:\\WINDOWS\\SYSTEM32\\liprip.dll" ovc.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Iprip\Parameters\ServiceDll = "C:\\Windows\\system32\\liprip.dll" svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 4372 ovc.exe -
Loads dropped DLL 3 IoCs
pid Process 4492 svchost.exe 4492 svchost.exe 4492 svchost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\repst = "C:\\Windows\\system32\\iprep.exe" svchost.exe -
Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe -
Drops file in System32 directory 5 IoCs
description ioc Process File created C:\WINDOWS\SysWOW64\liprip.dll ovc.exe File opened for modification C:\WINDOWS\SysWOW64\liprip.dll ovc.exe File opened for modification C:\Windows\SysWOW64\fsutk.dll svchost.exe File created C:\Windows\SysWOW64\iprep.exe svchost.exe File created C:\Windows\SysWOW64\fsutk.dll 95d6c2b996bd088f28f8928187dfc835.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Autodesk\AutoCAD\R17.0 svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Set value (str) \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Version = "*" svchost.exe Key created \REGISTRY\USER\S-1-5-20\Software svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Version = "*" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Ext\Settings svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Autodesk\AutoCAD\R16.1 svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Autodesk\AutoCAD\R17.1 svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Ext svchost.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Autodesk\AutoCAD svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Autodesk\AutoCAD\R16.2 svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "218" LogonUI.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Flags = "0" svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows svchost.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion svchost.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Key created \REGISTRY\USER\S-1-5-20 svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft svchost.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Key created \REGISTRY\USER\S-1-5-19 svchost.exe Set value (int) \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Flags = "0" svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Autodesk\AutoCAD\R16.0 svchost.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT svchost.exe Key created \REGISTRY\USER\S-1-5-19\Software svchost.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59} svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" LogonUI.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59} svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext svchost.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings svchost.exe Key created \REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Autodesk\AutoCAD\R16.0 svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59} svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Autodesk\AutoCAD\R17.2 svchost.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Autodesk\AutoCAD\R18.0 svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Version = "*" svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Autodesk svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Flags = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft svchost.exe Set value (str) \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings svchost.exe -
Modifies registry class 22 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\InprocServer32\ThreadingModel = "Apartment" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{BF50AC63-19DA-487E-AD4A-0B452D823B59}" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0E5CBF21-D15F-11d0-8301-00AA005B4383}\InProcServer32\ svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\InprocServer32\ = "C:\\Windows\\SysWow64\\fsutk.dll" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\InprocServer32\ svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Programmable\ svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ProgID\ svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ProgID\ = "IEHlprObj.IEHlprObj.1" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "QuickFlash" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "QuickFlash" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AF604EFE-8897-11D1-B944-00A0C90312E1}\InProcServer32\ ovc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\VersionIndependentProgID\ svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\Programmable\ svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AF604EFE-8897-11D1-B944-00A0C90312E1}\InProcServer32\ svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF50AC63-19DA-487E-AD4A-0B452D823B59}\ = "QuickFlash" svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeShutdownPrivilege 4492 svchost.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1908 95d6c2b996bd088f28f8928187dfc835.exe 4372 ovc.exe 2012 LogonUI.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1908 wrote to memory of 4372 1908 95d6c2b996bd088f28f8928187dfc835.exe 84 PID 1908 wrote to memory of 4372 1908 95d6c2b996bd088f28f8928187dfc835.exe 84 PID 1908 wrote to memory of 4372 1908 95d6c2b996bd088f28f8928187dfc835.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\95d6c2b996bd088f28f8928187dfc835.exe"C:\Users\Admin\AppData\Local\Temp\95d6c2b996bd088f28f8928187dfc835.exe"1⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\Users\Admin\AppData\Local\Temp\ovc.exe"C:\Users\Admin\AppData\Local\Temp\ovc.exe"2⤵
- Sets DLL path for service in the registry
- Executes dropped EXE
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4372
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k netsvcs -s Iprip1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:4492
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa39f5055 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2012
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
20KB
MD5a48ce2e93b66515818dc63f53e7a9466
SHA123d9fbcc191a08bd869111b2fdf4337176caf64b
SHA256a6f0bde33ed72797a7e4c01f8c0fd0e9cb5c548947576aa7c1a12d36e70e1594
SHA5126a1a925417f5bb429313b19acc00d9f87ffba62a0e682ff16d67684b20ef61172e353e91db1b9da35b957053a4c4095b85f1579961940389636433c76c58cfc9
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Filesize
116KB
MD5f4fff9b6616f5620353f9894b4b76168
SHA1ac4631891ba8e63f420cff37c0557b02c7d2ea00
SHA2568d201107cfe700cac72d710a362ffe1fca9814fd4fe024ba1f1413a53c9bef1e
SHA512744ecf11ef1e8cfacc41aa17d980766bf2bb1efd1c5dead014591275541d50e00d631e7f87f4bd0c9957f61c3aa548588cea6a1343cd2d0bcfcd9100f0f54784
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Filesize
220KB
MD56ead7a252dfa3679b8265d419a7c93ca
SHA1622963be979c3f3d73439abd4b5cef0b691bd1d5
SHA2561c5594c53da40b07a13ff8d06dc6c3b6951bdd78d5acad4d5cb4464470f17988
SHA512402077cde7ba5db0fc4591ce9f3708a463060f733735af0d3356385a04f31e369473f3b26449852a6d8791504a9b896c2432a2b1ea458362033852a853fc9617
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Filesize
84KB
MD53143e617511fe15071999510425c8c76
SHA13fdd1d08e0eac1edea18c4f911490113f9f5ad6d
SHA25654fed928d4a98e54ae7a770e0aeda96c0e207f4835786e9b772dd8148acd19d0
SHA512fafb5400186a39916c34e573246452fd37e7a789abf778827e17de061fe6556ad18c56d6e5dffd7f1469257112e8981ad87208ed3d0dcba29b9f4e84fb5e4075