11ea65b2709bb714f059cf53767f7ee5ae6defe5b5d548e32375e65571b66015

Analysis

max time kernel
142s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2023, 18:44

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General

Target

chrome.txt
Size

5B
MD5

3808d82ed52876c3dda66fbf4cb142c8
SHA1

224dcbc79590e1d4abfda3d17b083b333fa00980
SHA256

11ea65b2709bb714f059cf53767f7ee5ae6defe5b5d548e32375e65571b66015
SHA512

c29e6bca941260fa3109a4266d6ace8c88604135ac1785e8e77500e15cccf29565470dd09a78592d202d100376565eef5b70bb5eab5224931e0d6f831a7bfe61

Score

1^/10

Malware Config

Signatures

Modifies registry class 33 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupView = "0"	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	NOTEPAD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}"	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1"	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Mode = "4"	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1092616257"	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\IconSize = "16"	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	NOTEPAD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents"	NOTEPAD.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\LogicalViewMode = "1"	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByDirection = "1"	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000	NOTEPAD.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}	NOTEPAD.EXE
Key created	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	NOTEPAD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:PID = "0"	NOTEPAD.EXE

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1464	NOTEPAD.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1464	NOTEPAD.EXE

C:\Windows\system32\NOTEPAD.EXE
C:\Windows\system32\NOTEPAD.EXE C:\Users\Admin\AppData\Local\Temp\chrome.txt
1⤵
- Modifies registry class
- Opens file in notepad (likely ransom note)
- Suspicious use of SetWindowsHookEx
PID:1464

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4928

Windows 7 deprecation

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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