eac1ec725704ce44533045c0dc120d7d858329bc45c137f2241793aaed239d6b

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/04/2024, 12:38

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General

Target
e4f142f06afad8b87a6eb898674682c1_JaffaCakes118.dll
Size 104KB
Sample240407-pt4essdc23
SHA256 eac1ec725704ce44533045c0dc120d7d858329bc45c137f2241793aaed239d6b
MD5 e4f142f06afad8b87a6eb898674682c1
SHA1 a995df8d83500daeda4f0215ada7f03740e7c9a2
SHA512 8cf63784ab56bbd2f6bf0f04751b1648f5de794e14926adca1af1422fae08b1dfba0cf15864ab91e3658b5931487bb6eae0dd11d124135d3a0f97bee3aeda5bd
SSDEEP 3072:2RDb739kRaBzRMdE6vVaVsfRhNC54SOlhZ3kkke:GDbxUE6vIifRnKqZ3kkk
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\{FCAA0766-15FC-4aec-A010-F4605D272581}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{FCAA0766-15FC-4aec-A010-F4605D272581}\	regsvr32.exe

Modifies registry class 23 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\ProgID\ = "BHO.FffPlayer.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\TypeLib\ = "{8A4F328C-C9F4-4449-A0DF-A756A6B52ABF}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer.1\CLSID\ = "{FCAA0766-15FC-4aec-A010-F4605D272581}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\CurVer\ = "BHO.FffPlayer.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\CLSID\ = "{FCAA0766-15FC-4aec-A010-F4605D272581}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer.1\ = "CFffPlayer Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\VersionIndependentProgID\ = "BHO.FffPlayer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\AppID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\ = "CFffPlayer Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\ = "CFffPlayer Object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{FCAA0766-15FC-4aec-A010-F4605D272581}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e4f142f06afad8b87a6eb898674682c1_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\BHO.FffPlayer\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 4860	5016	regsvr32.exe	85
PID 5016 wrote to memory of 4860	5016	regsvr32.exe	85
PID 5016 wrote to memory of 4860	5016	regsvr32.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e4f142f06afad8b87a6eb898674682c1_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e4f142f06afad8b87a6eb898674682c1_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4860

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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