cfbdf90edcd53b2da6f03f7ce91aa89fb60f3066dac418ab6b77cfa931ac55db

Analysis

max time kernel
100s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28-06-2024 14:09

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General

Target

1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll
Size

168KB
MD5

1a6bdf340f49f24e5fc0bde99c8cbfcb
SHA1

6498d3003ac5fbf161ab91b6de345817f319b460
SHA256

cfbdf90edcd53b2da6f03f7ce91aa89fb60f3066dac418ab6b77cfa931ac55db
SHA512

ec8fce6e3970ed77b46a9bb199b4cb227ed445cc8411f682a4caed7991389ad524045c088e8cd75bc9741807729b46023db238099ceda583641765d46c89de2f
SSDEEP

1536:gS7NbzH1V9EsWssoNT/E40WQ8CRYj+a8i5k0tb0cnHjJUmW65tzKgxWp8U61Z:H7dXqsWsKsCRY18ipjJUmW65tzKNpJ67

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\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\ = "SmartKey"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 50 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ = "ISmartKeyBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO.1\CLSID\ = "{6B44DEEA-E970-4674-BCF9-E4E4302F6979}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\ = "SmartKeyBHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\VersionIndependentProgID\ = "SmartKey.SmartKeyBHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{83278EE9-77C2-4B66-B809-E8C520401879}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{83278EE9-77C2-4B66-B809-E8C520401879}\ = "SmartKey"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ = "ISmartKeyBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib\ = "{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO.1\ = "SmartKeyBHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\CurVer\ = "SmartKey.SmartKeyBHO.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\TypeLib\ = "{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\ProgID\ = "SmartKey.SmartKeyBHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\ = "SmartKey 1.0 Çü½Ä ¶óÀÌºê·¯¸®"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\SmartKey.DLL\AppID = "{83278EE9-77C2-4B66-B809-E8C520401879}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6B44DEEA-E970-4674-BCF9-E4E4302F6979}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DDEE9E1E-A729-435F-A04D-65674E670478}\TypeLib\ = "{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\SmartKey.DLL	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E2E979CD-108A-44C3-BFCE-5A62BE91B6E1}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\ = "SmartKeyBHO Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO\CLSID\ = "{6B44DEEA-E970-4674-BCF9-E4E4302F6979}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SmartKey.SmartKeyBHO.1	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 2124 wrote to memory of 1576	2124	regsvr32.exe	regsvr32.exe
PID 2124 wrote to memory of 1576	2124	regsvr32.exe	regsvr32.exe
PID 2124 wrote to memory of 1576	2124	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2124

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\1a6bdf340f49f24e5fc0bde99c8cbfcb_JaffaCakes118.dll
2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1576

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

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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