dff546b1e1331ef6bd0fcc0df0d80a96e4a8d5b5b4a98af77ff766d83475bcfe

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/06/2024, 21:55

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General

Target
099c42dd583c4851eb1135b1e864a6d2_JaffaCakes118.dll
Size 164KB
Sample240620-1sxfmsshkl
SHA256 dff546b1e1331ef6bd0fcc0df0d80a96e4a8d5b5b4a98af77ff766d83475bcfe
MD5 099c42dd583c4851eb1135b1e864a6d2
SHA1 c4239ef46bb0f58562fb69394ad510ab797bea2e
SHA512 d9bd8707c8fcc34a191089e698b9aeede0eb6e65f59330b001905a00c61bab20970ea4116d589900033072161846232047517073eac6ce809ce61832eff211fa
SSDEEP 1536:RmTuHpYB0r03r1cxIfx92AGHx2UF4gDg26fYcijTH4yzgZr1uf54ywRrP9Er/il5:RmywxQAOVFrefYciLgt1uf54y2Er/i5
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}	regsvr32.exe

Modifies registry class 42 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\TypeLib\ = "{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\TypeLib\ = "{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\099c42dd583c4851eb1135b1e864a6d2_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\099c42dd583c4851eb1135b1e864a6d2_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BF3DBFF1-1B02-4FA2-8BA3-E05EB3348AA5}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BF3DBFF2-1B02-4FA2-8BA3-E05EB3348AA5}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{BF3DBFF8-1B02-4FA2-8BA3-E05EB3348AA5}\1.0	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2880	regsvr32.exe
2880	regsvr32.exe
2880	regsvr32.exe
2880	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 2880	1184	regsvr32.exe	82
PID 1184 wrote to memory of 2880	1184	regsvr32.exe	82
PID 1184 wrote to memory of 2880	1184	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\099c42dd583c4851eb1135b1e864a6d2_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\099c42dd583c4851eb1135b1e864a6d2_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:2880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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