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Analysis
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max time kernel
147s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
11/08/2024, 13:24
Behavioral task
behavioral1
Sample
8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe
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Size
477KB
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MD5
8a86537c1c4e6f6c1548fdd86c079ac8
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SHA1
93c4f146069938dd5febef6651915bcc8b6878af
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SHA256
e2382b933d8f278665620c6980454447f5f5dd9cdbc6f18e019544fb8bfe0406
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SHA512
d03da5f6936326ee6095663a9a451aba9c4b592386f6437bf0cf9d05bbb69bdfce4d062ce7abacd7ab03a2e7bfacc30267824f2df03b26ba3027c1516dde8a72
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SSDEEP
12288:C+9vr7Ubx/PZf3YJkayls/HeH66f1v8LmtUMZ:Tr7UdpY6YGHXl8LNMZ
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe" 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\useriniti\ImagePath = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe init" 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe -
resource yara_rule behavioral2/memory/4912-0-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/1628-2-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/1628-5-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-8-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-9-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-10-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-12-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-13-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-14-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-15-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-16-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-17-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-18-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-19-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-20-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-21-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-22-0x0000000000400000-0x0000000000561000-memory.dmp upx behavioral2/memory/4912-23-0x0000000000400000-0x0000000000561000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\services = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe" 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\service\ARQUIVOS_EXCLUIDOS_9 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe File created C:\Windows\SysWOW64\service\dhuidjkqwld 8a86537c1c4e6f6c1548fdd86c079ac8_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 2 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 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\ 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe Set value (int) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\Enabled = "0" 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4912 wrote to memory of 1628 4912 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe 86 PID 4912 wrote to memory of 1628 4912 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe 86 PID 4912 wrote to memory of 1628 4912 8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Sets service image path in registry
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:4912 -
C:\Users\Admin\AppData\Local\Temp\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\8a86537c1c4e6f6c1548fdd86c079ac8_JaffaCakes118.exe" INSTALL2⤵
- System Location Discovery: System Language Discovery
PID:1628
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1