05a478a0b1443c3dbeb8ffcba3d76a1f1dca41cf3b38ebfe89fdfebcbae2033f

Analysis

max time kernel
92s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 05:07

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General

Target

b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
Size

91KB
MD5

b4eb0f9b73d13ca6243cf9f6b1ac7bfd
SHA1

8e5c2accd8b1565c9e33710a1c2be3a92a7fbc01
SHA256

05a478a0b1443c3dbeb8ffcba3d76a1f1dca41cf3b38ebfe89fdfebcbae2033f
SHA512

3748dee214f52e6e2eaaa2ed4647155e9080db79785531e852c1e25bda7c38868127dd3a83e73865cd7541fae6150b5a43bf0e63f1bd1e21e4bfba60535a4d1a
SSDEEP

768:XTToANTmNOdkk7taeICWzDpCMJrBDsX9MihU+jdVZWtdATTo1:XTToANqNOdRDWzdnsdhUsZWtWTTo1

Score

7^/10

adware discovery stealer upx

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
3668	regsvr32.exe

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\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ = "??????"	regedit.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4748-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4748-10-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\userid.txt	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
File opened for modification	C:\Windows\gdujsigzaatbsvepqpet\dllkspuhgmabq.dll	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
File created	C:\Windows\reg.reg	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regedit.exe

Modifies registry class 45 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "_QvodBlock"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ProgID\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\VERSION\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Implemented Categories	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\ = "QvodAdBlocker"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32\ = "C:\\Windows\\gdujsigzaatbsvepqpet\\dllkspuhgmabq.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0\win32\ = "C:\\Windows\\gdujsigzaatbsvepqpet\\dllkspuhgmabq.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\HELPDIR\ = "C:\\Windows\\gdujsigzaatbsvepqpet"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "_QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\VERSION	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\Clsid\ = "{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Programmable	regsvr32.exe

Runs .reg file with regedit 1 IoCs

pid	Process
3672	regedit.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 3668	4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	84
PID 4748 wrote to memory of 3668	4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	84
PID 4748 wrote to memory of 3668	4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	84
PID 4748 wrote to memory of 3568	4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	85
PID 4748 wrote to memory of 3568	4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	85
PID 4748 wrote to memory of 3568	4748	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	85
PID 3568 wrote to memory of 3672	3568	cmd.exe	87
PID 3568 wrote to memory of 3672	3568	cmd.exe	87
PID 3568 wrote to memory of 3672	3568	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe /s "C:\Windows\gdujsigzaatbsvepqpet\dllkspuhgmabq.dll"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3668
- C:\Windows\SysWOW64\cmd.exe
  cmd /c regedit.exe /s C:\Windows\reg.reg
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3568
- - C:\Windows\SysWOW64\regedit.exe
    regedit.exe /s C:\Windows\reg.reg
    3⤵
    - Installs/modifies Browser Helper Object
    - System Location Discovery: System Language Discovery
    - Runs .reg file with regedit
    PID:3672

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 Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\gdujsigzaatbsvepqpet\dllkspuhgmabq.dll

Filesize
9.6MB

MD5
3e77557076ae93b9bf5acac49376463e

SHA1
e2366adc2f51843ad9e74508f8b5ec6e590f4444

SHA256
d6c539922e4ee88bfdac9170828a3b8de6178d5abeb76ace042a31c9e9ea6009

SHA512
75c63d518ed77dd658dc2a1959ce621be0869afce7d37a26e1c47e76f3b0ade3279b25d978960338af2e98220833ba4f2ae00fc426cf8bf179f6a164621cc4fb

Download Submit
C:\Windows\reg.reg

Filesize
185B

MD5
e7ec5d1748cbe59ab5ee02805c9530af

SHA1
cd5f89ea21cf72e5ce94d36aa00618bfd9c39a5c

SHA256
36845b1f85dbc963f36bded837503db0b551194d62fd00db431e1c1e4dd783c3

SHA512
f9af7930ec0021c72102eb4645dece32fb6bf0f7a054e2634ff26fa334ac79bf29ddcd69dbb5960897880da52693ce0fd9c69b4ccacdbb62dc9b5b91b6cdbe9c

Download Submit
memory/4748-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4748-10-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download