15e3a94352e5f3006636f160b88e8f6cdb63efcaa7af17f7b0ddf85b7b296a3d

General

Target

04f63e9df9ee48236ace3c32141b1279_JaffaCakes118.dll
Size

262KB
MD5

04f63e9df9ee48236ace3c32141b1279
SHA1

89c20beedb98697f438f66af1b6fa3eda2ead0c8
SHA256

15e3a94352e5f3006636f160b88e8f6cdb63efcaa7af17f7b0ddf85b7b296a3d
SHA512

56c4a247deafe3206a2fa2d7b672ea1be14047860a26ae4e9bccab655a9ed420b2ab942cdfe3c49c312005ee244e1fdd31dd8b6812441c48f47479f350eb7425
SSDEEP

3072:N2CYU/9J7yX8LVxQbqHVOhB+PVG63Qv+8e2mZKT0RUg/MsC1mcEL:N2CYUf+sLVW4VOy+vTmZJ2LY

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{298f32ca-94c4-4808-be02-644b9c7d89cf}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{298f32ca-94c4-4808-be02-644b9c7d89cf}\ = "Wild West 1.0.0.7"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{298f32ca-94c4-4808-be02-644b9c7d89cf}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 34 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\ = "Wild West 1.0.0.7"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\Version\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\TypeLib\ = "{A4E32025-FC62-415F-BF9A-71CA415CA893}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\ = "IWildWest"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\TypeLib\ = "{a4e32025-fc62-415f-bf9a-71ca415ca893}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\ = "IWildWest"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\04f63e9df9ee48236ace3c32141b1279_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0\ = "WildWestIEClientLib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{298f32ca-94c4-4808-be02-644b9c7d89cf}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\04f63e9df9ee48236ace3c32141b1279_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\TypeLib\ = "{A4E32025-FC62-415F-BF9A-71CA415CA893}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A4E32025-FC62-415F-BF9A-71CA415CA893}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{5EDD68F6-3C14-459B-90C6-9D875CF0A325}\ProxyStubClsid32	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 2616 wrote to memory of 4648	2616	regsvr32.exe	regsvr32.exe
PID 2616 wrote to memory of 4648	2616	regsvr32.exe	regsvr32.exe
PID 2616 wrote to memory of 4648	2616	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\04f63e9df9ee48236ace3c32141b1279_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2616

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\04f63e9df9ee48236ace3c32141b1279_JaffaCakes118.dll
2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4648

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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