ecb24b3e3edcc169201855861077d62e3af6ba44ec9a8e5ffee7db1af0ddb439

Analysis

max time kernel
138s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
21/07/2024, 23:18

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General

Target

61d29afb578fc117a0792796033ad211_JaffaCakes118.dll
Size

248KB
MD5

61d29afb578fc117a0792796033ad211
SHA1

3ee95a363072a43cf4549cd2987f618fe9bbcb57
SHA256

ecb24b3e3edcc169201855861077d62e3af6ba44ec9a8e5ffee7db1af0ddb439
SHA512

4dcaaa0679b5e159ee2bef8949d7be5a24df9b047ae616e9c02a7ef42f006c67b9930c3dc05f9b1258d63fb373dbfb65f535940cc9fadbf9ccf72c69bc4b1626
SSDEEP

6144:IOiYcaclk1K3rEhxOnfLCAd3Anq+szf1d1J1:alV3rEhuyndsd9

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\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}	regsvr32.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\61d29afb578fc117a0792796033ad211_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\webbrowser = "{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}\ = "JavaSunSurf Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F9BA1AA9-CAD4-4C14-BDE6-922DFF5F6F38}\wversion = "4.1.6"	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{686488AF-13D5-9DDF-4FEF-9FB88698CFC1}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\WOW6432Node\CLSID\{AAB6C1A0-F3A4-4DAC-A922-F82E601E73A8}	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 5056	4712	regsvr32.exe	84
PID 4712 wrote to memory of 5056	4712	regsvr32.exe	84
PID 4712 wrote to memory of 5056	4712	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\61d29afb578fc117a0792796033ad211_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\61d29afb578fc117a0792796033ad211_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:5056

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

Windows 7 deprecation

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