Analysis
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max time kernel
92s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
25-07-2024 19:47
Static task
static1
Behavioral task
behavioral1
Sample
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
Resource
win10v2004-20240709-en
General
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Target
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
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Size
810KB
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MD5
70f992e73d440fe02244b8fd3962ba61
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SHA1
1100fd25b820c64613dd16f8cbf16e9c54cc1287
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SHA256
5482bcb0f258027740ffc73b7dba78273bf6a11971152a6354b01db1eb2e6290
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SHA512
483d5a51bbc75baefe102d4901ebfbae1ef98c4ca0a78656293d9ca53bbdeee58d084a386b783bbfcf86b867ee4e790d5740024f6cffb9e26e76d6c6ec0e0c88
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SSDEEP
12288:3hLzRs8dx/4TZ2vFkRYLFaJFLQLYzleyb1DKohOGzeANRi8CKz3Zhzxp6L:3dRsqKZ2NkRYcnzle21DjhmKzJN36L
Malware Config
Extracted
djvu
http://securebiz.org/fhsgtsspen6/get.php
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extension
.tisc
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offline_id
uFHwN7bjwCkJEeUg8JHISzLqrwudidH8XsPzHDt1
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payload_url
http://znpst.top/dl/build2.exe
http://securebiz.org/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 9 IoCs
Processes:
resource yara_rule behavioral2/memory/4648-2-0x00000000008A0000-0x00000000009BB000-memory.dmp family_djvu behavioral2/memory/3616-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3616-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3616-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3616-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3616-18-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3324-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3324-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3324-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\6179fbf5-a36a-4630-8238-1d73c3af42cf\\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe\" --AutoStart" 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 21 api.2ip.ua 22 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exedescription pid process target process PID 4648 set thread context of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 set thread context of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4192 3324 WerFault.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exeicacls.exe70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exepid process 3616 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 3616 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exedescription pid process target process PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 4648 wrote to memory of 3616 4648 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 3616 wrote to memory of 4492 3616 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe icacls.exe PID 3616 wrote to memory of 4492 3616 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe icacls.exe PID 3616 wrote to memory of 4492 3616 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe icacls.exe PID 3616 wrote to memory of 2284 3616 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 3616 wrote to memory of 2284 3616 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 3616 wrote to memory of 2284 3616 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe PID 2284 wrote to memory of 3324 2284 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe 70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4648 -
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3616 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\6179fbf5-a36a-4630-8238-1d73c3af42cf" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:4492 -
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
PID:3324 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 5845⤵
- Program crash
PID:4192
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3324 -ip 33241⤵PID:3444
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\6179fbf5-a36a-4630-8238-1d73c3af42cf\70f992e73d440fe02244b8fd3962ba61_JaffaCakes118.exe
Filesize810KB
MD570f992e73d440fe02244b8fd3962ba61
SHA11100fd25b820c64613dd16f8cbf16e9c54cc1287
SHA2565482bcb0f258027740ffc73b7dba78273bf6a11971152a6354b01db1eb2e6290
SHA512483d5a51bbc75baefe102d4901ebfbae1ef98c4ca0a78656293d9ca53bbdeee58d084a386b783bbfcf86b867ee4e790d5740024f6cffb9e26e76d6c6ec0e0c88