83f1c31b74e1ced63cf04834d0e64a6e0cbf5c1f7ea52cadfc16aaac7c441765

Analysis

max time kernel
132s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/08/2024, 06:11

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General

Target

a9e4ec6d3c5139c8612135e08b233fee_JaffaCakes118.dll
Size

53KB
MD5

a9e4ec6d3c5139c8612135e08b233fee
SHA1

167782c8ad36f97eeb034583239e8643784e8f89
SHA256

83f1c31b74e1ced63cf04834d0e64a6e0cbf5c1f7ea52cadfc16aaac7c441765
SHA512

3fa1b78ce860894ad00328a1c043792c697c621bcc0d5839a2fd53d774a273c5d6f2f21dbfb1b44e35cff4601b0be4573b24a42ace269208c830b26adf3ce9ea
SSDEEP

768:JPPmhgNjc/P8kcaB8vTyYTjjZi25ziKWheuGQxZDgh3HYRtUk:5PudiLWsuGQDEXYRtUk

Score

6^/10

adware discovery 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\{EF5EF25D-0971-7110-B63D-52D18AA79944}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EF5EF25D-0971-7110-B63D-52D18AA79944}\ = "Microsoft Office"	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 50 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\ProgID\ = "Microsoft Office.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\VersionIndependentProgID\ = "Microsoft Office"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\ = "Microsoft Office Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\ = "Microsoft (R) WindowsMediaPlayer "	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\TypeLib\ = "{5972278F-410E-101b-AAB1-A896DF184470}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ = "IIECatch"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\CLSID\ = "{EF5EF25D-0971-7110-B63D-52D18AA79944}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\A9E4EC~1.DLL"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\ = "Microsoft Office Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CLSID\ = "{EF5EF25D-0971-7110-B63D-52D18AA79944}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a9e4ec6d3c5139c8612135e08b233fee_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\ = "{5972278F-410E-101B-AAB1-A896DF184470}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ = "IIECatch"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia.1\ = "Microsoft Office Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\Version\ = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\ = "{5972278F-410E-101B-AAB1-A896DF184470}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia\CurVer\ = "Microsoft Office.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a9e4ec6d3c5139c8612135e08b233fee_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\ = "Microsoft Office 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{5972278F-410E-101B-AAB1-A896DF184470}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\windowsmedia	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A8D5CDD2-53FF-4DD7-9991-E2C568609F0F}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{EF5EF25D-0971-7110-B63D-52D18AA79944}\Programmable	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2628	2428	regsvr32.exe	86
PID 2428 wrote to memory of 2628	2428	regsvr32.exe	86
PID 2428 wrote to memory of 2628	2428	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a9e4ec6d3c5139c8612135e08b233fee_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\a9e4ec6d3c5139c8612135e08b233fee_JaffaCakes118.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2628

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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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