917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3

General

Target

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Size

3.0MB
MD5

65f49288a70b3d7b69d82e1feeafb2f4
SHA1

0ffef7e980331930c45d341a87c20705ea8a3360
SHA256

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3
SHA512

981707c177f294b9270f42d72151940708381087b6b0d2fbacc8bb4955e1e2996f9463c9b8378f2c83af4c83f324ed3e0de64434dd971125e07af323c715dd27
SSDEEP

49152:mjlv2h3YZUZeHDgzlcBwb9gs8cjdk2+AAi/TcWsNkLLfy/AHi6y:iv2FI+ecJcBwJgs8ca2aWZHy/A

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 created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32\ = "C:\\Program Files (x86)\\cosstminn\\04I.x64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32	regsvr32.exe

Loads dropped DLL 3 IoCs

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exeregsvr32.exeregsvr32.exe

pid process

848 917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
3084 regsvr32.exe
376 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:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

description	ioc	process
File created	C:\Users\WDAGUtilityAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\bappfjkacaiebfiimlkglfhadfajmgnh\2.0\manifest.json	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\bappfjkacaiebfiimlkglfhadfajmgnh\2.0\manifest.json	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\bappfjkacaiebfiimlkglfhadfajmgnh\2.0\manifest.json	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Users\DefaultAccount\AppData\Local\Google\Chrome\User Data\Default\Extensions\bappfjkacaiebfiimlkglfhadfajmgnh\2.0\manifest.json	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\bappfjkacaiebfiimlkglfhadfajmgnh\2.0\manifest.json	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.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:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exeregsvr32.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\NoExplorer = "1"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\ = "cosstminn"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\NoExplorer = "1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\ = "cosstminn"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

Drops file in System32 directory 4 IoCs

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

Drops file in Program Files directory 8 IoCs

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\cosstminn\04I.dll	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Program Files (x86)\cosstminn\04I.tlb	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File opened for modification	C:\Program Files (x86)\cosstminn\04I.tlb	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Program Files (x86)\cosstminn\04I.dat	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File opened for modification	C:\Program Files (x86)\cosstminn\04I.dat	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Program Files (x86)\cosstminn\04I.x64.dll	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File opened for modification	C:\Program Files (x86)\cosstminn\04I.x64.dll	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
File created	C:\Program Files (x86)\cosstminn\04I.dll	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

T1112

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exeregsvr32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key deleted	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key deleted	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key deleted	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\APPROVEDEXTENSIONSMIGRATION\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	regsvr32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\ApprovedExtensionsMigration	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

Modifies registry class 64 IoCs

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exeregsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\ProgID	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\VersionIndependentProgID	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR\ = "C:\\Program Files (x86)\\cosstminn"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32\ = "C:\\Program Files (x86)\\cosstminn\\04I.x64.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CLSID	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ProxyStubClsid32	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\ = "cosstminn"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn.2.0\ = "cosstminn"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\ = "cosstminn"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\VersionIndependentProgID\ = "cosstminn"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\ = "cosstminn"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32\ = "C:\\Program Files (x86)\\cosstminn\\04I.dll"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\Programmable	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32\ = "C:\\Program Files (x86)\\cosstminn\\04I.tlb"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\VersionIndependentProgID	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ProxyStubClsid32	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CurVer\ = "cosstminn.2.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\ProgID\ = "cosstminn.2.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ = "ILocalStorage"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\Version = "1.0"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\ = "cosstminn"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\Version = "1.0"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\ProxyStubClsid32	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CurVer	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\ProgID\ = "cosstminn.2.0"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32\ThreadingModel = "Apartment"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}\ = "IRegistry"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CLSID\ = "{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cosstminn.cosstminn\CLSID\ = "{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D}\ProgID	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS\ = "0"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{9B41579A-1996-42F9-8F84-7B7786818CEF}\ = "IPlaghinMein"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}\TypeLib\ = "{E2343056-CC08-46AC-B898-BFC7ACF4E755}"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

pid	process
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

description	pid	process
Token: SeDebugPrivilege	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Token: SeDebugPrivilege	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Token: SeDebugPrivilege	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Token: SeDebugPrivilege	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Token: SeDebugPrivilege	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
Token: SeDebugPrivilege	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exeregsvr32.exe

description	pid	process	target process
PID 848 wrote to memory of 3084	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe	regsvr32.exe
PID 848 wrote to memory of 3084	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe	regsvr32.exe
PID 848 wrote to memory of 3084	848	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe	regsvr32.exe
PID 3084 wrote to memory of 376	3084	regsvr32.exe	regsvr32.exe
PID 3084 wrote to memory of 376	3084	regsvr32.exe	regsvr32.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\{6A44B13C-7B36-2FD3-A8CB-5258C61E611D} = "1"	917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe

C:\Users\Admin\AppData\Local\Temp\917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.exe
"C:\Users\Admin\AppData\Local\Temp\917778ad39300fd25dc2901f36396c1e299827e66b1bb8cac2e9e23b20cde3a3.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:848

C:\Windows\SysWOW64\regsvr32.exe
regsvr32.exe /s "C:\Program Files (x86)\cosstminn\04I.x64.dll"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3084

C:\Windows\system32\regsvr32.exe
/s "C:\Program Files (x86)\cosstminn\04I.x64.dll"
3⤵
- Registers COM server for autorun
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:376

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:3424

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:3584

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\04I.dat
Filesize
4KB

MD5
de368bd34dc36ce41711a49001481fa7

SHA1
b91011d79f7ab077941ea70374f725389c981a7e

SHA256
48c1e087fb793d93a79d7e516aa9cdc6ff58d2fa393895a5c5f67820771c0d7f

SHA512
528d7235f80b2f52d476fca1db30933b098f416080511e4c436b58fca2f112c5216d237ca9c605c5be53d258c5bcb75a888dfb0698519669e5c4e3d52cf920a6

Download Submit
C:\Program Files (x86)\cosstminn\04I.dll
Filesize
606KB

MD5
d0a9fd704266fb372807507df74c4101

SHA1
ec68536756c4af9d1f272077641be746bcb45394

SHA256
c4488056716132ddbc950f968acc358dc0b0973e6b5d3afd4fe5f7dc037dde2d

SHA512
d78e6600a9711dc21a6e086b8db713eb12d671052e543c16a74f12daeb97e12ec7c5ed9d39813882bcba5c6131af943115bcc35e68b891d5f59349e085ef24f7

Download Submit
C:\Program Files (x86)\cosstminn\04I.tlb
Filesize
3KB

MD5
596b14afa3a4cf4a24f570f58c5bf9dc

SHA1
5283fef61f1129881eb5f49c8058381ef2205054

SHA256
f91335a2720866f56454e5121b50ec26c88fb2b7545c07a1090119cdf79d2e17

SHA512
81303f8baed9043e7a2cbeb891b9742e8db284e10a229fc6e46a99f4e239da616c5223f2d400b74c4bfd9b937a8c882b5cf98aa8b46943d8deb2a3e06b4c1c2d

Download Submit
C:\Program Files (x86)\cosstminn\04I.x64.dll
Filesize
684KB

MD5
5b557ca9bc92357eb76a8c576df86e6d

SHA1
a66eecc091839bd0b6617f8332c35924f75c768c

SHA256
29cd1cde949335d2d55629992320462479188f220e973dbf844d8ac47aef4bb5

SHA512
d5bea462fd63ccfe590713b591608a358f356539309194c215975b597e366ef42044f6481b7ca8cc748dc6552d63e1e838ac977e2c120851b20986c1115e0b2e

Download Submit
C:\Program Files (x86)\cosstminn\04I.x64.dll
Filesize
684KB

MD5
5b557ca9bc92357eb76a8c576df86e6d

SHA1
a66eecc091839bd0b6617f8332c35924f75c768c

SHA256
29cd1cde949335d2d55629992320462479188f220e973dbf844d8ac47aef4bb5

SHA512
d5bea462fd63ccfe590713b591608a358f356539309194c215975b597e366ef42044f6481b7ca8cc748dc6552d63e1e838ac977e2c120851b20986c1115e0b2e

Download Submit
C:\Program Files (x86)\cosstminn\04I.x64.dll
Filesize
684KB

MD5
5b557ca9bc92357eb76a8c576df86e6d

SHA1
a66eecc091839bd0b6617f8332c35924f75c768c

SHA256
29cd1cde949335d2d55629992320462479188f220e973dbf844d8ac47aef4bb5

SHA512
d5bea462fd63ccfe590713b591608a358f356539309194c215975b597e366ef42044f6481b7ca8cc748dc6552d63e1e838ac977e2c120851b20986c1115e0b2e

Download Submit
memory/376-156-0x0000000000000000-mapping.dmp

Download
memory/848-143-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-137-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-145-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-150-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-149-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-148-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-147-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-146-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-151-0x0000000000DC0000-0x0000000000DC2000-memory.dmp

Filesize
8KB

Download
memory/848-144-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-142-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-132-0x0000000000400000-0x00000000004A1000-memory.dmp

Filesize
644KB

Download
memory/848-138-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-139-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-140-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/848-141-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

Filesize
12KB

Download
memory/3084-153-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads