25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4

General

Target

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Size

3.1MB
MD5

b04eeca467e087f2b6e790470760ef41
SHA1

d350cb86656c2c199bf4c1f7dd87d76a313269b4
SHA256

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4
SHA512

54fd90d1420ade3a682257c49f04973358c3629660a7e39957d262ed4a63aac4d6008863fae65191b3fd83457c701937cc0eabef1f560f558c642f0c5dca00fd
SSDEEP

49152:VXCLQbeGze7bSi8x9BKCWLMT/95j0YZ0ZMGSqN+ICvNqE/lL8kG1:VSU1i3u/jnZ0ZvSqFE/+

Score

8^/10

adware discovery persistence spyware stealer

Malware Config

Signatures

Registers COM server for autorun 1 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Processes:

regsvr32.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\InprocServer32\ = "C:\\Program Files (x86)\\cosstminn\\ELPa.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe

Loads dropped DLL 3 IoCs

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exeregsvr32.exeregsvr32.exe

pid process

2032 25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
3296 regsvr32.exe
1452 regsvr32.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops Chrome extension 5 IoCs

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\liofheoedincmlefhffienmonbdmcaaf\2.0\manifest.json	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\liofheoedincmlefhffienmonbdmcaaf\2.0\manifest.json	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\liofheoedincmlefhffienmonbdmcaaf\2.0\manifest.json	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\liofheoedincmlefhffienmonbdmcaaf\2.0\manifest.json	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\liofheoedincmlefhffienmonbdmcaaf\2.0\manifest.json	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

regsvr32.exe25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\ = "cosstminn"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\NoExplorer = "1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\ = "cosstminn"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\NoExplorer = "1"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

Drops file in System32 directory 4 IoCs

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

Drops file in Program Files directory 8 IoCs

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\cosstminn\ELPa.dll	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Program Files (x86)\cosstminn\ELPa.tlb	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File opened for modification	C:\Program Files (x86)\cosstminn\ELPa.tlb	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Program Files (x86)\cosstminn\ELPa.dat	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File opened for modification	C:\Program Files (x86)\cosstminn\ELPa.dat	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Program Files (x86)\cosstminn\ELPa.x64.dll	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File opened for modification	C:\Program Files (x86)\cosstminn\ELPa.x64.dll	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
File created	C:\Program Files (x86)\cosstminn\ELPa.dll	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	regsvr32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	regsvr32.exe

Modifies registry class 64 IoCs

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exeregsvr32.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\VersionIndependentProgID	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\ = "cosstminn"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\ProgID	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\VersionIndependentProgID	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CLSID	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CurVer	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32\ = "C:\\Program Files (x86)\\cosstminn\\ELPa.tlb"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CLSID\ = "{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\InprocServer32\ = "C:\\Program Files (x86)\\cosstminn\\ELPa.dll"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CurVer\ = "cosstminn.2.0"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\ProgID\ = "cosstminn.2.0"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR\ = "C:\\Program Files (x86)\\cosstminn"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\ProgID\ = "cosstminn.2.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\ = "cosstminn"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\ = "cosstminn"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn.2.0	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn.2.0\ = "cosstminn"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn.2.0\CLSID	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn.2.0\ = "cosstminn"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

pid	process
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

description	pid	process
Token: SeDebugPrivilege	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Token: SeDebugPrivilege	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Token: SeDebugPrivilege	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Token: SeDebugPrivilege	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Token: SeDebugPrivilege	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
Token: SeDebugPrivilege	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exeregsvr32.exe

description	pid	process	target process
PID 2032 wrote to memory of 3296	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe	regsvr32.exe
PID 2032 wrote to memory of 3296	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe	regsvr32.exe
PID 2032 wrote to memory of 3296	2032	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe	regsvr32.exe
PID 3296 wrote to memory of 1452	3296	regsvr32.exe	regsvr32.exe
PID 3296 wrote to memory of 1452	3296	regsvr32.exe	regsvr32.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{B51776BC-7321-2AB4-87DE-B10A6ED43EC8} = "1"	25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe

C:\Users\Admin\AppData\Local\Temp\25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe
"C:\Users\Admin\AppData\Local\Temp\25276ff09c53aa540db4aacf5c1ba026cbb01d98145c984c11739678899d6cd4.exe"
1⤵
- Loads dropped DLL
- Drops Chrome extension
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2032

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\cosstminn\ELPa.x64.dll"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3296

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\cosstminn\ELPa.x64.dll"
3⤵
- Registers COM server for autorun
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:1452

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:3480

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:3712

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\cosstminn\ELPa.dat

Filesize
4KB

MD5
acdc5f88466d189ce31427d38a5cf8e9

SHA1
6192b6799ec4b45cbcdf1e88b45cbf214f7586dd

SHA256
cf95ecf4c6387664c9eccaabd2ec56ab12266b6cde5f861912955c973e0f5c32

SHA512
45354401da8a1be71a3291fdfb41c5800c9fe914e94731298820cdbded90e06841bb7d86a6d677c246c379bb3f47bad21a17400ef1af9d5e126de4746d8fede3

Download Submit
C:\Program Files (x86)\cosstminn\ELPa.dll

Filesize
610KB

MD5
1a2a5aeb486a553926674b61c65a8998

SHA1
3f87a150d0d04c66745cd2c5c7a0eb24fc6f0f21

SHA256
7774df2ea482856d1f074ccd5f3513132b5f03826964b0a592d74d22c8a409b7

SHA512
7ba6797697c0af305a6e51b2affd9819c3f3e8010c4f28f805545322a1ebe1bd1c5c70ec2b0db54c31939568a65ae2143bca5f826135a1445cfe49a5d7fd1215

Download Submit
C:\Program Files (x86)\cosstminn\ELPa.tlb

Filesize
3KB

MD5
0c1303480311c937a5898e1221caeb4c

SHA1
3d8e8499847546fb4beb3104d34dba1c4962a71f

SHA256
de9c7a0783ac0e39aa26c52aa559d414aac174dcafd6cbaf0afe7ebf3135130f

SHA512
554a77347647cd33234f17b0d7bce3cedd7bff347fc2b8d309e7305e8a2f88640ea2a2094a928f5f47c89b3b17f090405eb81428d43b3125d11c9c0c9fe94c47

Download Submit
C:\Program Files (x86)\cosstminn\ELPa.x64.dll

Filesize
689KB

MD5
b914fc09324c95bc5c071eb82b500ab7

SHA1
4379fc0030d6eec9c99bd7b5c5220ea3d67d3cbe

SHA256
8d63f8e86afc66984039a4f3f33a70704b8ca1fe8dd2cc0c8b0f3971bf43d223

SHA512
2f43471dc8c378970e60903e78e6953d3f3ebec736b8a6f8f563bc32cbdd5e2a4de4cb1bcb021679301160deb3d7296ab4a06298b2a9e74c5b1bfbeb14889b24

Download Submit
C:\Program Files (x86)\cosstminn\ELPa.x64.dll

Filesize
689KB

MD5
b914fc09324c95bc5c071eb82b500ab7

SHA1
4379fc0030d6eec9c99bd7b5c5220ea3d67d3cbe

SHA256
8d63f8e86afc66984039a4f3f33a70704b8ca1fe8dd2cc0c8b0f3971bf43d223

SHA512
2f43471dc8c378970e60903e78e6953d3f3ebec736b8a6f8f563bc32cbdd5e2a4de4cb1bcb021679301160deb3d7296ab4a06298b2a9e74c5b1bfbeb14889b24

Download Submit
C:\Program Files (x86)\cosstminn\ELPa.x64.dll

Filesize
689KB

MD5
b914fc09324c95bc5c071eb82b500ab7

SHA1
4379fc0030d6eec9c99bd7b5c5220ea3d67d3cbe

SHA256
8d63f8e86afc66984039a4f3f33a70704b8ca1fe8dd2cc0c8b0f3971bf43d223

SHA512
2f43471dc8c378970e60903e78e6953d3f3ebec736b8a6f8f563bc32cbdd5e2a4de4cb1bcb021679301160deb3d7296ab4a06298b2a9e74c5b1bfbeb14889b24

Download Submit
memory/1452-152-0x0000000000000000-mapping.dmp

Download
memory/2032-141-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-144-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-145-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-146-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-147-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-143-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-142-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-132-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download
memory/2032-140-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-139-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-138-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/2032-137-0x00000000011E0000-0x00000000011E3000-memory.dmp

Filesize
12KB

Download
memory/3296-149-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads