05a478a0b1443c3dbeb8ffcba3d76a1f1dca41cf3b38ebfe89fdfebcbae2033f

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
2736	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
behavioral1/memory/2012-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2012-12-0x0000000000400000-0x0000000000418000-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\ouqsuwofyynkyjvtxrvn\dllsytwaoxykx.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "QvodBlock"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32\ = "C:\\Windows\\ouqsuwofyynkyjvtxrvn\\dllsytwaoxykx.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Programmable	regsvr32.exe
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\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ProgID	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0\win32\ = "C:\\Windows\\ouqsuwofyynkyjvtxrvn\\dllsytwaoxykx.dll"	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\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	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}\ProgID\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32	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\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\VERSION\ = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\ = "QvodAdBlocker.QvodBlock"	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\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	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\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\VERSION	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "_QvodBlock"	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\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\Clsid\ = "{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\FLAGS	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\HELPDIR\ = "C:\\Windows\\ouqsuwofyynkyjvtxrvn"	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\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe

Runs .reg file with regedit 1 IoCs

pid	Process
2228	regedit.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe
2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2736	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	32
PID 2012 wrote to memory of 2736	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	32
PID 2012 wrote to memory of 2736	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	32
PID 2012 wrote to memory of 2736	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	32
PID 2012 wrote to memory of 2736	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	32
PID 2012 wrote to memory of 2736	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	32
PID 2012 wrote to memory of 2736	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	32
PID 2012 wrote to memory of 2864	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	33
PID 2012 wrote to memory of 2864	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	33
PID 2012 wrote to memory of 2864	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	33
PID 2012 wrote to memory of 2864	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	33
PID 2012 wrote to memory of 2864	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	33
PID 2012 wrote to memory of 2864	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	33
PID 2012 wrote to memory of 2864	2012	b4eb0f9b73d13ca6243cf9f6b1ac7bfd_JaffaCakes118.exe	33
PID 2864 wrote to memory of 2228	2864	cmd.exe	35
PID 2864 wrote to memory of 2228	2864	cmd.exe	35
PID 2864 wrote to memory of 2228	2864	cmd.exe	35
PID 2864 wrote to memory of 2228	2864	cmd.exe	35
PID 2864 wrote to memory of 2228	2864	cmd.exe	35
PID 2864 wrote to memory of 2228	2864	cmd.exe	35
PID 2864 wrote to memory of 2228	2864	cmd.exe	35

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:2012
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe /s "C:\Windows\ouqsuwofyynkyjvtxrvn\dllsytwaoxykx.dll"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2736
- 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:2864
- - 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:2228

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

Replay Monitor

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Downloads

C:\Windows\ouqsuwofyynkyjvtxrvn\dllsytwaoxykx.dll

Filesize
8.2MB

MD5
1c0c70e6b0b0df2f97e1ced6bd6b74c0

SHA1
090e1589d9b4239c05eded2fa11cd7110c38dbe1

SHA256
6dece46f872df8bb05f707145981d5550a0996479a0cc651e85817032c4179f9

SHA512
a9cf07788eb71a8d03cc3504ea1ae7e862f035f84545152103141b7f4be5a7643327d64913634e2a24c83d8f9b2e1e826eb6db888d06a5f9266841510104a309

Download Submit
C:\Windows\reg.reg

Filesize
185B

MD5
e7ec5d1748cbe59ab5ee02805c9530af

SHA1
cd5f89ea21cf72e5ce94d36aa00618bfd9c39a5c

SHA256
36845b1f85dbc963f36bded837503db0b551194d62fd00db431e1c1e4dd783c3

SHA512
f9af7930ec0021c72102eb4645dece32fb6bf0f7a054e2634ff26fa334ac79bf29ddcd69dbb5960897880da52693ce0fd9c69b4ccacdbb62dc9b5b91b6cdbe9c

Download Submit
memory/2012-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2012-1-0x0000000000020000-0x0000000000038000-memory.dmp

Filesize
96KB

Download
memory/2012-2-0x0000000000020000-0x0000000000038000-memory.dmp

Filesize
96KB

Download
memory/2012-12-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download