84bbe4d6527226bc4f8853b652bd86d946b9437a73f7aa706955670ec3eac981

Analysis

max time kernel
92s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 17:14

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General

Target

RICHTX32.dll
Size

207KB
MD5

045a16822822426c305ea7280270a3d6
SHA1

43075b6696bb2d2f298f263971d4d3e48aa4f561
SHA256

318cc48cbcfaba9592956e4298886823cc5f37626c770d6dadbcd224849680c5
SHA512

5a042ff0a05421fb01e0a95a8b62f3ce81f90330daed78f09c7d5d2abcb822a2fe99d00494c3ddd96226287fae51367e264b48b2831a8c080916ce18c0a675fa
SSDEEP

6144:hTr80hTueZXFOTSqP0xqRBTdtmFdCJErRj6/uE:NhzZVOTSqcxqRBKFdF6/uE

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 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9A5593C-CAB0-11D1-8C0B-0000F8754DA1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\RICHTEXT.RichtextCtrl.1\CLSID\ = "{3B7C8860-D78F-101B-B9B5-04021C009402}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\TypeLib\ = "{3B7C8863-D78F-101B-B9B5-04021C009402}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{859321D0-3FD1-11CF-8981-00AA00688B10}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3B7C8862-D78F-101B-B9B5-04021C009402}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3B7C8862-D78F-101B-B9B5-04021C009402}\TypeLib\Version = "1.2"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED117630-4090-11CF-8981-00AA00688B10}\ = "IOLEObject"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED117630-4090-11CF-8981-00AA00688B10}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\RICHTEXT.RichtextCtrl.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\MiscStatus\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\Implemented Categories\{0DE86A57-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78E5A540-1850-11CF-9D53-00AA003C9CB6}\InprocServer32	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFC634B0-4B8B-11CF-8989-00AA00688B10}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFC634B0-4B8B-11CF-8989-00AA00688B10}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFC634B0-4B8B-11CF-8989-00AA00688B10}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\RICHTX32.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}\TypeLib\ = "{3B7C8863-D78F-101B-B9B5-04021C009402}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\MiscStatus\1\ = "131473"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78E5A540-1850-11CF-9D53-00AA003C9CB6}\ = "RichText General Property Page Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED117630-4090-11CF-8981-00AA00688B10}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{859321D0-3FD1-11CF-8981-00AA00688B10}\ = "IOLEObjects"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B7C8862-D78F-101B-B9B5-04021C009402}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B7C8862-D78F-101B-B9B5-04021C009402}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\MiscStatus	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\ToolboxBitmap32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3B7C8863-D78F-101B-B9B5-04021C009402}\1.2\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{859321D0-3FD1-11CF-8981-00AA00688B10}\TypeLib\ = "{3B7C8863-D78F-101B-B9B5-04021C009402}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\RICHTEXT.RichtextCtrl\CLSID\ = "{3B7C8860-D78F-101B-B9B5-04021C009402}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}\ = "IVBDataObject"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9A5593C-CAB0-11D1-8C0B-0000F8754DA1}\ = "IRichText"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B617B991-A767-4F05-99BA-AC6FCABB102E}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\RICHTX32.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFC634B0-4B8B-11CF-8989-00AA00688B10}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED117630-4090-11CF-8981-00AA00688B10}\TypeLib\ = "{3B7C8863-D78F-101B-B9B5-04021C009402}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9A5593C-CAB0-11D1-8C0B-0000F8754DA1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B7C8862-D78F-101B-B9B5-04021C009402}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\Control	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\ = "IVBDataObjectFiles"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3B7C8863-D78F-101B-B9B5-04021C009402}\1.2\HELPDIR\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9A5593C-CAB0-11D1-8C0B-0000F8754DA1}\TypeLib\ = "{3B7C8863-D78F-101B-B9B5-04021C009402}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3B7C8862-D78F-101B-B9B5-04021C009402}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9A5593C-CAB0-11D1-8C0B-0000F8754DA1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{E9A5593C-CAB0-11D1-8C0B-0000F8754DA1}\ = "IRichText"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AFC634B0-4B8B-11CF-8989-00AA00688B10}\ = "RichText Apppearance Property Page Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3B7C8863-D78F-101B-B9B5-04021C009402}\1.2\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B617B991-A767-4F05-99BA-AC6FCABB102E}\ = "Microsoft Rich Textbox Control 6.0 (SP6)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E9A5593C-CAB0-11D1-8C0B-0000F8754DA1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B7C8862-D78F-101B-B9B5-04021C009402}\TypeLib\ = "{3B7C8863-D78F-101B-B9B5-04021C009402}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\Implemented Categories\{40FC6ED4-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\Implemented Categories\{0DE86A53-2BAA-11CF-A229-00AA003D7352}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{78E5A540-1850-11CF-9D53-00AA003C9CB6}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\RICHTX32.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3B7C8863-D78F-101B-B9B5-04021C009402}\1.2\ = "Microsoft Rich Textbox Control 6.0 (SP6)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}\ = "IVBDataObject"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\ = "Microsoft Rich Textbox Control 6.0 (SP6)"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\RICHTEXT.RichtextCtrl\CurVer\ = "RICHTEXT.RichtextCtrl.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3B7C8860-D78F-101B-B9B5-04021C009402}\ProgID\ = "RICHTEXT.RichtextCtrl.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3B7C8863-D78F-101B-B9B5-04021C009402}\1.2\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{3B7C8862-D78F-101B-B9B5-04021C009402}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 956	4728	regsvr32.exe	80
PID 4728 wrote to memory of 956	4728	regsvr32.exe	80
PID 4728 wrote to memory of 956	4728	regsvr32.exe	80

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\RICHTX32.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\RICHTX32.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:956

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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