3c2c9e49a102d40894fc3bbf3da6b6a0eaf61f4ab092fac626cc97e6ea467155 | Triage

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
21/07/2023, 03:49

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General

Target

ExtractorExt.dll
Size

61KB
MD5

06eeafff32b2bd11fe65f86847c011c2
SHA1

d0b28bc505fee682eaad740eee2319abd1ed44a0
SHA256

2b7a9d9283aaab362b942bf096e16c6d25c17e64f766c408f2b6fef46d30ff27
SHA512

bce00e53d905e6716050cc07a2f034ed239c95123c53ab1c8eb0396f4180e9486fc52e23e31a09989a8192150f6802d75690cdc84e7cf8781c6ebf8c0f14042e
SSDEEP

1536:Wygh8XK+gd8A4UquMAVPwMJc1UJ3D3+eKM+Lv1:3g+XVbA43AlJTJ3+O+Lv1

Score

1^/10

Malware Config

Signatures

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B8BE7FCB-9E4B-43B0-8EC7-EB9CFFB04729}\ = "Extractor Shell Extension"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B8BE7FCB-9E4B-43B0-8EC7-EB9CFFB04729}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ExtractorExt.dll"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\*	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\*\shellex	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\Folder	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B8BE7FCB-9E4B-43B0-8EC7-EB9CFFB04729}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\*\shellex\ContextMenuHandlers\Extractor	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\*\shellex\ContextMenuHandlers\Extractor\ = "{B8BE7FCB-9E4B-43B0-8EC7-EB9CFFB04729}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\Folder\shellex\ContextMenuHandlers\Extractor	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\Folder\shellex	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B8BE7FCB-9E4B-43B0-8EC7-EB9CFFB04729}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B8BE7FCB-9E4B-43B0-8EC7-EB9CFFB04729}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\*\shellex\ContextMenuHandlers	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\Folder\shellex\ContextMenuHandlers	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000_CLASSES\Folder\shellex\ContextMenuHandlers\Extractor\ = "{B8BE7FCB-9E4B-43B0-8EC7-EB9CFFB04729}"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2420	2440	regsvr32.exe	28
PID 2440 wrote to memory of 2420	2440	regsvr32.exe	28
PID 2440 wrote to memory of 2420	2440	regsvr32.exe	28
PID 2440 wrote to memory of 2420	2440	regsvr32.exe	28
PID 2440 wrote to memory of 2420	2440	regsvr32.exe	28
PID 2440 wrote to memory of 2420	2440	regsvr32.exe	28
PID 2440 wrote to memory of 2420	2440	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ExtractorExt.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ExtractorExt.dll
  2⤵
  - Modifies registry class
  PID:2420

Network

MITRE ATT&CK Matrix

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Downloads

memory/2420-53-0x00000000002C0000-0x00000000002EF000-memory.dmp

Filesize
188KB

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memory/2420-54-0x00000000002C0000-0x00000000002EF000-memory.dmp

Filesize
188KB

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