Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
20-05-2024 06:48
Static task
static1
Behavioral task
behavioral1
Sample
5db6252be49081eabdc7b0b7d0d455ff_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
5db6252be49081eabdc7b0b7d0d455ff_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
5db6252be49081eabdc7b0b7d0d455ff_JaffaCakes118.dll
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Size
5.0MB
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MD5
5db6252be49081eabdc7b0b7d0d455ff
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SHA1
a5fc89e162377830e6f560ddca4c67be5cd76c31
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SHA256
422649f12a6895183c1dbecbe09434e29dfdeafe6fdae2cdf1b3b2a91b2bf285
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SHA512
3500959af4bce166e804c28301fea1c16238f38da0dd53e9c73df374b9a5c32279ad70da149a619a6bc696dd1a6b8fcd267f17dd2ce36927e3e1bfa1c384e53e
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SSDEEP
12288:yebLgPlu+QhMbaIMu7L5N5b0XV5SQeuBRdh:zbLgddQhfdmngbk+Rdh
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3318) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Executes dropped EXE 3 IoCs
Processes:
mssecsvc.exemssecsvc.exetasksche.exepid process 1812 mssecsvc.exe 2024 mssecsvc.exe 2728 tasksche.exe -
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
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Drops file in System32 directory 1 IoCs
Processes:
mssecsvc.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat mssecsvc.exe -
Drops file in Windows directory 2 IoCs
Processes:
rundll32.exemssecsvc.exedescription ioc process File created C:\WINDOWS\mssecsvc.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvc.exe -
Modifies data under HKEY_USERS 24 IoCs
Processes:
mssecsvc.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C336E9DD-AE8C-4501-BFF3-67B424A0E7FA}\WpadDecision = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C336E9DD-AE8C-4501-BFF3-67B424A0E7FA}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C336E9DD-AE8C-4501-BFF3-67B424A0E7FA}\16-65-ac-da-87-9b mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C336E9DD-AE8C-4501-BFF3-67B424A0E7FA} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C336E9DD-AE8C-4501-BFF3-67B424A0E7FA}\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C336E9DD-AE8C-4501-BFF3-67B424A0E7FA}\WpadDecisionTime = 8065b1b581aada01 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-65-ac-da-87-9b mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-65-ac-da-87-9b\WpadDecisionTime = 8065b1b581aada01 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-65-ac-da-87-9b\WpadDecision = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-65-ac-da-87-9b\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0030000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2576 wrote to memory of 1444 2576 rundll32.exe rundll32.exe PID 2576 wrote to memory of 1444 2576 rundll32.exe rundll32.exe PID 2576 wrote to memory of 1444 2576 rundll32.exe rundll32.exe PID 2576 wrote to memory of 1444 2576 rundll32.exe rundll32.exe PID 2576 wrote to memory of 1444 2576 rundll32.exe rundll32.exe PID 2576 wrote to memory of 1444 2576 rundll32.exe rundll32.exe PID 2576 wrote to memory of 1444 2576 rundll32.exe rundll32.exe PID 1444 wrote to memory of 1812 1444 rundll32.exe mssecsvc.exe PID 1444 wrote to memory of 1812 1444 rundll32.exe mssecsvc.exe PID 1444 wrote to memory of 1812 1444 rundll32.exe mssecsvc.exe PID 1444 wrote to memory of 1812 1444 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\5db6252be49081eabdc7b0b7d0d455ff_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2576 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\5db6252be49081eabdc7b0b7d0d455ff_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1812 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2728
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2024
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5abfaafaba07a62dfce0635888df786f4
SHA105cd8c7092847363d0ca63ee10fd12276781265f
SHA25669716912ca77be13408f38c68013ac0622a862230ad66ea2ec0d1fb34d461abc
SHA5124364933b537302af48ccb7bc9e0199234b531b68acab4b6e0640b223351752540b5f4e52c78c272c2b485f4a2e69eeea57df1006962e9096781605bf6f36b2a9
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Filesize
3.4MB
MD593e78d65b1deada11008846cddc6e458
SHA191fb578a4a657723444f3140a528764d0b5af9e7
SHA256ac5c5c028132c1d1947d920afbf316b3475d4e1fe0e430245139b9fa86a05a30
SHA512b27e4ce94b25fa3f31afca83cc3c8c12f2b170530678f95ed16433863e2031e0114a9346937a72fa5a55e45fe37062b8ac59e8ebc5781d8b081eb9cbde047030