20df13465b09ad3fabf707cdc3b370864ad0fe7e7ba550abb8b96cbd347283bf

Analysis

max time kernel
133s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 07:41

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General

Target

cudatext/cudatext_shell32.dll
Size

859KB
MD5

f3d29f94139391df22c3603eb92e0634
SHA1

e971b5ea114b21e09ad0118a36e1ec5e710ea645
SHA256

5f279320e29f54e6d8a2046b2fda75eb28ccbb6e669fd7d6969b2c8ae36b634e
SHA512

90517f5e23e1917ee57e442bc03dd654af10ba2d98045c10763e5ae3a9dfbc90e3546365fda3bc6412e019846ef89768bf3dabf06f82b3576f5b05178bf113f7
SSDEEP

24576:+WgjxOjd0dyI12eNG2FtYTBgbL1gdyjgtW2ekRIx:+WgYpG91rNG2FsglgJWx

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 55 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\CudaTextContextMenuHandler\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib\ = "{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\CurVer\ = "CudaTextContextMenuHandler.CudaTextContextMenuHandler.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\CudaTextContextMenuHandler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\CudaTextContextMenuHandler\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler.1\ = "CudaTextContextMenuHandler object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\0\win64	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\ = "CudaTextContextMenuHandler object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers\CudaTextContextMenuHandler	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\CLSID\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\CudaTextContextMenuHandler\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\ProgID\ = "CudaTextContextMenuHandler.CudaTextContextMenuHandler.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\0\win64\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cudatext\\cudatext_shell32.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ = "ICudaTextContextMenuHandler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler.1\CLSID\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\CudaTextContextMenuHandler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cudatext"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib\ = "{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cudatext\\cudatext_shell32.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\VersionIndependentProgID\ = "CudaTextContextMenuHandler.CudaTextContextMenuHandler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\TypeLib\ = "{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\ = "CudaTextContextMenuHandler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ = "ICudaTextContextMenuHandler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\CudaTextContextMenuHandler	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\ = "CudaTextContextMenuHandler object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\background\shellex\ContextMenuHandlers\CudaTextContextMenuHandler\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 3200	1976	regsvr32.exe	85
PID 1976 wrote to memory of 3200	1976	regsvr32.exe	85
PID 1976 wrote to memory of 3200	1976	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\cudatext\cudatext_shell32.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\cudatext\cudatext_shell32.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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