44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f

General

Target

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Size

2.9MB
MD5

619f94a96f83368d205f44d34fb24061
SHA1

2b996a2cf1e57cbd377b301cb1bbbde876b0ba7e
SHA256

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f
SHA512

e2a626e74da57433fe4f531a23fb9909404ab639dbef650cb501fbb0bcf2959f41bf0ca67de2bc5ae0ad57712358f1b70309b2ccfce62f81de6ca440851dad68
SSDEEP

49152:wNlIwOj323Z/CYbkOoZyNuWL5mq+9Ou4SzROsp6XmICGFbsbg1VL9enR:WWoFCYbMCLYcPxYmRQg1U

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32\ = "C:\\Program Files (x86)\\cosstminn\\LVl_.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32	regsvr32.exe

Loads dropped DLL 3 IoCs

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exeregsvr32.exeregsvr32.exe

pid process

4668 44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
3948 regsvr32.exe
4148 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:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

description	ioc	process
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\cfobdanmjolnbejjohecamlhhffmmfeg\2.0\manifest.json	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\cfobdanmjolnbejjohecamlhhffmmfeg\2.0\manifest.json	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\cfobdanmjolnbejjohecamlhhffmmfeg\2.0\manifest.json	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\cfobdanmjolnbejjohecamlhhffmmfeg\2.0\manifest.json	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\cfobdanmjolnbejjohecamlhhffmmfeg\2.0\manifest.json	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.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:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exeregsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\ = "cosstminn"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\NoExplorer = "1"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\ = "cosstminn"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\NoExplorer = "1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

Drops file in System32 directory 4 IoCs

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

description	ioc	process
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File opened for modification	C:\Windows\System32\GroupPolicy	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

Drops file in Program Files directory 8 IoCs

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

description	ioc	process
File created	C:\Program Files (x86)\cosstminn\LVl_.tlb	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File opened for modification	C:\Program Files (x86)\cosstminn\LVl_.tlb	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File created	C:\Program Files (x86)\cosstminn\LVl_.dat	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File opened for modification	C:\Program Files (x86)\cosstminn\LVl_.dat	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File created	C:\Program Files (x86)\cosstminn\LVl_.x64.dll	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File opened for modification	C:\Program Files (x86)\cosstminn\LVl_.x64.dll	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File created	C:\Program Files (x86)\cosstminn\LVl_.dll	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
File opened for modification	C:\Program Files (x86)\cosstminn\LVl_.dll	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exeregsvr32.exe

description	ioc	process
Key deleted	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	regsvr32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

Modifies registry class 64 IoCs

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn.2.0\CLSID\ = "{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CLSID	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\ = "cosstminn"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\Programmable	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32\ = "C:\\Program Files (x86)\\cosstminn\\LVl_.x64.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR\ = "C:\\Program Files (x86)\\cosstminn"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32\ = "C:\\Program Files (x86)\\cosstminn\\LVl_.dll"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\ = "IEPluginLib"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS\ = "0"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\VersionIndependentProgID\ = "cosstminn"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\ProgID\ = "cosstminn.2.0"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32\ThreadingModel = "Apartment"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\VersionIndependentProgID\ = "cosstminn"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\ = "cosstminn"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\Version = "1.0"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn.2.0\ = "cosstminn"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\ = "cosstminn"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CurVer\ = "cosstminn.2.0"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\VersionIndependentProgID	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn.2.0\CLSID	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CLSID\ = "{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CurVer	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\ProgID	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\Version = "1.0"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6}	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

pid	process
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

description	pid	process
Token: SeDebugPrivilege	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Token: SeDebugPrivilege	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Token: SeDebugPrivilege	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Token: SeDebugPrivilege	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Token: SeDebugPrivilege	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
Token: SeDebugPrivilege	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exeregsvr32.exe

description	pid	process	target process
PID 4668 wrote to memory of 3948	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe	regsvr32.exe
PID 4668 wrote to memory of 3948	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe	regsvr32.exe
PID 4668 wrote to memory of 3948	4668	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe	regsvr32.exe
PID 3948 wrote to memory of 4148	3948	regsvr32.exe	regsvr32.exe
PID 3948 wrote to memory of 4148	3948	regsvr32.exe	regsvr32.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{D71742D5-0875-4EE8-5FA9-E2335EDEBEE6} = "1"	44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe

C:\Users\Admin\AppData\Local\Temp\44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.exe
"C:\Users\Admin\AppData\Local\Temp\44fcb7c35a401ad0e320c992ef96b1d54e6564ec2a89ae9656d268049344c33f.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:4668
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe /s "C:\Program Files (x86)\cosstminn\LVl_.x64.dll"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3948
- - C:\Windows\system32\regsvr32.exe
    /s "C:\Program Files (x86)\cosstminn\LVl_.x64.dll"
    3⤵
    - Registers COM server for autorun
    - Loads dropped DLL
    - Installs/modifies Browser Helper Object
    - Modifies Internet Explorer settings
    - Modifies registry class
    PID:4148

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:4424

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:4464

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

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Downloads

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

Filesize
4KB

MD5
613911524406c85d6254e9c3246ad5a9

SHA1
b0d5f8deaf1d3dd3876f013b62acd5fc1e61d922

SHA256
4862b819d2d1904015d6bc73989c799c73c31ad19e162fbfe76cfe48b9b914c1

SHA512
7e3785bd8cfe238db746b68316b0aaff7ae7a2d60287a7b31141d8a8a54f2003bdc0943d53002e3eaf65c0246ba9c451b8992b1fe177c0b1e8bf17afdc4585c3

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

Filesize
605KB

MD5
72ae14ac560cd862a9dc671547286d1b

SHA1
929cc12b75cbcbbb18ca5d1a8d463fd0bf607d19

SHA256
0e3cd6bddd4109628f9193cbd68da68a06d92bdc6afd2544b6d2cf7a25813f9a

SHA512
ebc2da889fb26a2137783e1fadbd7d6f9eed47449df6583efd9df66f89c6c05fd34d01c8da15cbf64d493f07bcbcc0d84800e7bbe34fb7d7e018c1a5de265c26

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

Filesize
3KB

MD5
531346571ee2e23320503dd0cf8dde04

SHA1
ed110980a7d9e2b1fe6e870291cfbcaf1d2c1219

SHA256
5a60546a281eb5a6961b925a60995cb8f888cc1a66e327e6263c21ea3d3b0e7c

SHA512
7e04a177e6375f382a88d01a43763e0f4be945426b6635b262597408a320b0e2f0aabea394a923be60c79a009c1737104b69cb5e47bc884215966a8cd679d691

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

Filesize
687KB

MD5
81d4889568a6f6e358ca9a3d307765e1

SHA1
60990e17843d1de4b2ed29acd97e988c33b5e55e

SHA256
b1b3213c365c3bb4047a30446181aab8cd835eda9a4ebfb02d29f8629d205bfc

SHA512
689289e254060a9f5e6e3c2ad69871c28cb9bd7cf5af16257a95a65205ae2c52c928737dac348084a8870f69de9f530c60f2895d4cfccc2275d0f8f25420f138

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

Filesize
687KB

MD5
81d4889568a6f6e358ca9a3d307765e1

SHA1
60990e17843d1de4b2ed29acd97e988c33b5e55e

SHA256
b1b3213c365c3bb4047a30446181aab8cd835eda9a4ebfb02d29f8629d205bfc

SHA512
689289e254060a9f5e6e3c2ad69871c28cb9bd7cf5af16257a95a65205ae2c52c928737dac348084a8870f69de9f530c60f2895d4cfccc2275d0f8f25420f138

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

Filesize
687KB

MD5
81d4889568a6f6e358ca9a3d307765e1

SHA1
60990e17843d1de4b2ed29acd97e988c33b5e55e

SHA256
b1b3213c365c3bb4047a30446181aab8cd835eda9a4ebfb02d29f8629d205bfc

SHA512
689289e254060a9f5e6e3c2ad69871c28cb9bd7cf5af16257a95a65205ae2c52c928737dac348084a8870f69de9f530c60f2895d4cfccc2275d0f8f25420f138

Download Submit
memory/3948-138-0x0000000000000000-mapping.dmp

Download
memory/4148-141-0x0000000000000000-mapping.dmp

Download
memory/4668-132-0x0000000002BA0000-0x0000000002C42000-memory.dmp

Filesize
648KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads