c99dd15c5b17cb8f314f7067e1f5a6cc87eb54c47627bd8b6012288c5fcefe88

Analysis

max time kernel
114s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 17:30

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General

Target
f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll
Size 366KB
Sample240415-v3gv2sec41
SHA256 c99dd15c5b17cb8f314f7067e1f5a6cc87eb54c47627bd8b6012288c5fcefe88
MD5 f199d1cb902e8303d2a893f23408ab29
SHA1 422b18ca443867b960e76b0485840ec2aafe7503
SHA512 ba5eaa1ea3dbbbe6be147ae8dda406c5f97a4113138327f566b7f23c3ae047857dc8e1bb4bd4c94abf6a289a31b6f4aeae32c05619618034a7371c261f573b96
SSDEEP 6144:i3oEiphpUsUxGBTWX9vrYcmUDevh+hV57ykLCLjsq+SfwTBUH4ngTWrbRp+TFN2i:i3oV55NWXtrYKeAL7yk04qPfwTuH4KIi
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 2 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\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\NoExplorer = "\"\""	regsvr32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\ = "funxy.biz"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 3392	4208	regsvr32.exe	84
PID 4208 wrote to memory of 3392	4208	regsvr32.exe	84
PID 4208 wrote to memory of 3392	4208	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4208
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:3392

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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