Analysis
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max time kernel
51s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
20-06-2024 08:12
Static task
static1
Behavioral task
behavioral1
Sample
044476a3ae480a2a5408f7a2b7f64282_JaffaCakes118.dll
Resource
win7-20240508-en
General
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Target
044476a3ae480a2a5408f7a2b7f64282_JaffaCakes118.dll
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Size
111KB
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MD5
044476a3ae480a2a5408f7a2b7f64282
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SHA1
6d9d80314566a580f251413c99cca55f3efd79e7
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SHA256
afd11ce544197fdb0c89320eca95fe753ea649d4d3cb2d5f69db9e7814b9fb76
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SHA512
de00f978d120a9fb4f903a21679d8dc1c59c3b0e15478b454beacf931f404f80ab286d17bd0b8405b67fb01b092fa7f8787d9f4b7ea1c97ee77f2c87c6f8386a
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SSDEEP
1536:jgVtSKAWm51ewHbwy6DujGTbMtsNOyFZjitc23gAPa6tPFR8E14/mdO3U:UVtSKQ51ety6DuYbMtuhzEZa2PFAUO3
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 2068 rundll32.exe -
Installs/modifies Browser Helper Object 2 TTPs 4 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
Processes:
rundll32.exedescription ioc process Key deleted \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA} rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e0511f0c-2a38-41d9-8dca-e8c00f1b98ae} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e0511f0c-2a38-41d9-8dca-e8c00f1b98ae}\ = "{ea89b1f0-0c8e-acd8-9d14-83a2c0f1150e}" rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C} rundll32.exe -
Drops file in System32 directory 2 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Windows\SysWOW64\jlijat.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\jlijat.dll rundll32.exe -
Modifies registry class 23 IoCs
Processes:
rundll32.exedescription ioc process Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\TypeLib rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\VersionIndependentProgID rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\Version rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\TypeLib rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e0511f0c-2a38-41d9-8dca-e8c00f1b98ae}\InprocServer32\ = "C:\\Windows\\SysWow64\\jlijat.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e0511f0c-2a38-41d9-8dca-e8c00f1b98ae}\InprocServer32\ThreadingModel = "free" rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\InprocServer32 rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C} rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\ProgID rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\Implemented Categories rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e0511f0c-2a38-41d9-8dca-e8c00f1b98ae}\InprocServer32 rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA} rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\VersionIndependentProgID rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\ProgID rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640} rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\Implemented Categories rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\Programmable rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\InprocServer32 rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640} rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{e0511f0c-2a38-41d9-8dca-e8c00f1b98ae} rundll32.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\Programmable rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2460 wrote to memory of 5116 2460 rundll32.exe rundll32.exe PID 2460 wrote to memory of 5116 2460 rundll32.exe rundll32.exe PID 2460 wrote to memory of 5116 2460 rundll32.exe rundll32.exe PID 5116 wrote to memory of 2068 5116 rundll32.exe rundll32.exe PID 5116 wrote to memory of 2068 5116 rundll32.exe rundll32.exe PID 5116 wrote to memory of 2068 5116 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\044476a3ae480a2a5408f7a2b7f64282_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2460 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\044476a3ae480a2a5408f7a2b7f64282_JaffaCakes118.dll,#12⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:5116 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe "C:\Windows\system32\jlijat.dll",i3⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2068
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
111KB
MD5044476a3ae480a2a5408f7a2b7f64282
SHA16d9d80314566a580f251413c99cca55f3efd79e7
SHA256afd11ce544197fdb0c89320eca95fe753ea649d4d3cb2d5f69db9e7814b9fb76
SHA512de00f978d120a9fb4f903a21679d8dc1c59c3b0e15478b454beacf931f404f80ab286d17bd0b8405b67fb01b092fa7f8787d9f4b7ea1c97ee77f2c87c6f8386a