Analysis
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max time kernel
15s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
18-08-2024 05:13
Static task
static1
Behavioral task
behavioral1
Sample
a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe
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Size
68KB
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MD5
a584d7f2f1852463e449b5450f782080
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SHA1
94377a33b65218b5df9075ef892fae026aca3f9c
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SHA256
898e8d6a8d0dafe81052066c542892106d20148eabfaa9c84f0f80bcd3552ad6
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SHA512
8ab75570355d9c5188a27c151e38e8b035e8a40a753f2c15587b19008e71eb108a769cebd019a5a1b8b1b87bcbaf8036347f127fe745c46a517662767f652b67
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SSDEEP
768:q+drPtHk711IYpq23ZdFbNVFQL5lCCENafjORvKN97WK9OENRDamusc:qIW71ZqA3V6CafcvS7JJNRvusc
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 3044 cmd.exe -
Loads dropped DLL 5 IoCs
pid Process 2176 rundll32.exe 2176 rundll32.exe 2176 rundll32.exe 2176 rundll32.exe 1848 regsvr32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SystemHelp = "RUNDLL32.EXE C:\\Windows\\system32\\SystemHper.dll,Install" rundll32.exe -
Installs/modifies Browser Helper Object 2 TTPs 1 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{8D4D2F69-DF30-4471-988C-CC58545E86C8} regsvr32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\259539034 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies registry class 46 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\TypeLib\ = "{D33E35F6-EEE1-4FF5-B029-27E495C5516A}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER\ = "MSUSER Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\InprocServer32\ = "C:\\Windows\\SysWow64\\SystemHper.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\ = "IMSUSER" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER\CurVer\ = "MSHELP.MSUSER.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0\HELPDIR\ = "C:\\Windows\\SysWow64\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\ = "IMSUSER" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER\CLSID\ = "{8D4D2F69-DF30-4471-988C-CC58545E86C8}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER.1\ = "MSUSER Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER.1\CLSID\ = "{8D4D2F69-DF30-4471-988C-CC58545E86C8}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\ = "MSUSER Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\TypeLib\ = "{C33A35F6-CBB2-4FF5-B029-27E495C5516A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\ProgID\ = "MSHELP.MSUSER.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\SystemHper.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\VersionIndependentProgID\ = "MSHELP.MSUSER" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\TypeLib\ = "{D33E35F6-EEE1-4FF5-B029-27E495C5516A}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER.1 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0\ = "WINDOWSHELPER 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\MSHELP.MSUSER\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8D4D2F69-DF30-4471-988C-CC58545E86C8}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{D33E35F6-EEE1-4FF5-B029-27E495C5516A}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{47AEEC5F-BD98-4766-9994-155CE2095A2E}\ProxyStubClsid32 regsvr32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2176 rundll32.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2240 wrote to memory of 2176 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 28 PID 2240 wrote to memory of 2176 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 28 PID 2240 wrote to memory of 2176 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 28 PID 2240 wrote to memory of 2176 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 28 PID 2240 wrote to memory of 2176 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 28 PID 2240 wrote to memory of 2176 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 28 PID 2240 wrote to memory of 2176 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 28 PID 2240 wrote to memory of 1848 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 29 PID 2240 wrote to memory of 1848 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 29 PID 2240 wrote to memory of 1848 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 29 PID 2240 wrote to memory of 1848 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 29 PID 2240 wrote to memory of 1848 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 29 PID 2240 wrote to memory of 1848 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 29 PID 2240 wrote to memory of 1848 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 29 PID 2240 wrote to memory of 3044 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 30 PID 2240 wrote to memory of 3044 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 30 PID 2240 wrote to memory of 3044 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 30 PID 2240 wrote to memory of 3044 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 30 PID 2240 wrote to memory of 3044 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 30 PID 2240 wrote to memory of 3044 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 30 PID 2240 wrote to memory of 3044 2240 a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a584d7f2f1852463e449b5450f782080_JaffaCakes118.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Windows\system32\SystemHper.dll,Install2⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2176
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" C:\Windows\system32\SystemHper.dll /s2⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:1848
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C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\259542701.BAT2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:3044
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Browser Extensions
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
226B
MD5e38805631a890ad9d675012ec58023d4
SHA1bae0480674af28063aac9e15a2a994106da83f53
SHA256bfa1a38b141c70f5387cb673bd054c7ec08bbc2d84d2b5c8d9887b1f3bebe0fa
SHA5127187ac72dc7c0329b9cb5244b9139573b435bf56206e41904d3f48b984fa9a2445e4f73d8157073e7e62f924591f655397bf22cc55cce02b865cbf8c7842332c
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Filesize
64KB
MD572c7a0f16a62b1775b22d40cd93b9ddb
SHA1b3a4d9b9da3b543460530ab3a571cb9bc8a70884
SHA256e2465e6ada8a40fb1aba1f85f8d200bbadc91eb067c4a58a8429239ae92da768
SHA512cd2dca8fde8e41733dc6852ad51128bd58ca05cac5a73f4c4ebbf434b3bf3f216e70a05d384459982688c4efb80a2858fb8cbb1a95be36ab878ce6ad2e7018d8