a8d156230c75ae16a5c5cf04fb115807126cc0953b3c875a77150e9504795d94

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24/08/2024, 07:40

Target

be283398b6d7099b7d769a0650175c5f_JaffaCakes118.dll
Size

154KB
MD5

be283398b6d7099b7d769a0650175c5f
SHA1

c89fce0dbb398b0ac62dbbe6cceaf07496ce617a
SHA256

a8d156230c75ae16a5c5cf04fb115807126cc0953b3c875a77150e9504795d94
SHA512

1a8c5dd761c463e81086326d60fd93530cf475de75621a828c974b0c7e1049665166eccb05464273dc50e268ff653e3493177fe485c86ad3885efcab365d7b71
SSDEEP

3072:yGEO9rq6fz1vAxRC2La3cJtxrxpAsNKnyUj5nomk:9EOh1z1yCUzJXrxGWK1omk

Score

6^/10

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\{38b238cb-77fd-5a0c-abd6-32ef54ee554c} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\be283398b6d7099b7d769a0650175c5f_JaffaCakes118.dll\" DllStart"	regsvr32.exe

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

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

Modify Registry

Browser Extensions

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{b020adbd-7e83-8024-af8b-22257f9d463f}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{b020adbd-7e83-8024-af8b-22257f9d463f}\NoExplorer = "\"\""	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.

System Language Discovery

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{b020adbd-7e83-8024-af8b-22257f9d463f}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{b020adbd-7e83-8024-af8b-22257f9d463f}\ = "targetedbanner browser optimizer"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{b020adbd-7e83-8024-af8b-22257f9d463f}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{b020adbd-7e83-8024-af8b-22257f9d463f}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\be283398b6d7099b7d769a0650175c5f_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{b020adbd-7e83-8024-af8b-22257f9d463f}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 1700	1712	regsvr32.exe	30
PID 1712 wrote to memory of 1700	1712	regsvr32.exe	30
PID 1712 wrote to memory of 1700	1712	regsvr32.exe	30
PID 1712 wrote to memory of 1700	1712	regsvr32.exe	30
PID 1712 wrote to memory of 1700	1712	regsvr32.exe	30
PID 1712 wrote to memory of 1700	1712	regsvr32.exe	30
PID 1712 wrote to memory of 1700	1712	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\be283398b6d7099b7d769a0650175c5f_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\be283398b6d7099b7d769a0650175c5f_JaffaCakes118.dll
  2⤵
  - Adds Run key to start application
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1700