a102b644fd134778f28e1105e4645e84ff4d05687351990de90ae27a89f0513b

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
31/05/2024, 06:44

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General

Target
$TEMP/mode/Thumbs.db/intern/Vsa7Director.dll
Size 37KB
Sample240531-hhlbhsbb66
SHA256 fcba2ff7bce5ba6c0a5188cfde82009c7acd6b14cb14ce390ab5a49773a425b4
MD5 6db03aa5dfe458e7a4e21d9688d3dcd6
SHA1 256e539c011697a8983c8a609e21cdedd4d59ecc
SHA512 0a5e16a993b3c2afcc8326607046ca509d2ac63682f99a149cd539e474ed6062f54b5c6b02bb8272c271ca0bccb48c08b75d18cb4ec5350d99ec885e25de8ecd
SSDEEP 768:r5Eiu+UuJwO3YkHr05FLsHNqW/hks6qrJ/Ejv7Mbk6huUc9zhX:fuDuyO3YiIAHNqW/ms6qrJEv7Mbk5UcP
MD5 SHA1 SHA512 SSDEEP

Score

1^/10

Malware Config

Signatures

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$TEMP\\mode\\Thumbs.db\\intern\\Vsa7Director.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\DefaultIcon	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\$TEMP\\mode\\Thumbs.db\\intern\\Vsa7Director.dll,1200"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\Version	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\Version\ = "8.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3BB77526-8BE8-4990-8B16-5B44CF2C581F}\ = "Microsoft Visual Studio for Application Design Time Engine Director"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2252	2184	regsvr32.exe	28
PID 2184 wrote to memory of 2252	2184	regsvr32.exe	28
PID 2184 wrote to memory of 2252	2184	regsvr32.exe	28
PID 2184 wrote to memory of 2252	2184	regsvr32.exe	28
PID 2184 wrote to memory of 2252	2184	regsvr32.exe	28
PID 2184 wrote to memory of 2252	2184	regsvr32.exe	28
PID 2184 wrote to memory of 2252	2184	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$TEMP\mode\Thumbs.db\intern\Vsa7Director.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$TEMP\mode\Thumbs.db\intern\Vsa7Director.dll
  2⤵
  - Modifies registry class
  PID:2252

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Malware Config

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