Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10-05-2024 11:35
Static task
static1
Behavioral task
behavioral1
Sample
2ee9049671c6fdcda29351ac72b4e29a_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2ee9049671c6fdcda29351ac72b4e29a_JaffaCakes118.dll
Resource
win10v2004-20240226-en
General
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Target
2ee9049671c6fdcda29351ac72b4e29a_JaffaCakes118.dll
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Size
5.0MB
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MD5
2ee9049671c6fdcda29351ac72b4e29a
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SHA1
6a03157901da06f8f8254bd986cf4851b5b1ddec
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SHA256
6aa3328f68cbc5ac3d2854334e1e2a4c96310f735a0eddead7fa1416cf1767fc
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SHA512
568e7225c7f1ad753d68b4c28a67ec1d1325d34b5c4f4fe5feae76e6a20c1663832997c3cef6b16d09ec996b4b775668ee05c9d8d0efd62783b476684db78d10
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SSDEEP
49152:znAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdh2QyvGSIkI:TDqPoBhz1aRxcSUDk36SAEdhTSY
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3282) 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 1616 mssecsvc.exe 2556 mssecsvc.exe 2684 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:
mssecsvc.exerundll32.exedescription ioc process File created C:\WINDOWS\tasksche.exe mssecsvc.exe File created C:\WINDOWS\mssecsvc.exe rundll32.exe -
Modifies data under HKEY_USERS 24 IoCs
Processes:
mssecsvc.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-8e-05-c7-1d-61\WpadDecisionReason = "1" 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\Wpad\d6-8e-05-c7-1d-61\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 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\Wpad\{8DF4808D-ED5F-4758-89D8-5580AAFBDA43}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-8e-05-c7-1d-61 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DF4808D-ED5F-4758-89D8-5580AAFBDA43}\WpadDecisionTime = f0febe1dcea2da01 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f011f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DF4808D-ED5F-4758-89D8-5580AAFBDA43} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DF4808D-ED5F-4758-89D8-5580AAFBDA43}\WpadDecisionReason = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DF4808D-ED5F-4758-89D8-5580AAFBDA43}\WpadDecision = "0" 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\ZoneMap\ mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8DF4808D-ED5F-4758-89D8-5580AAFBDA43}\d6-8e-05-c7-1d-61 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-8e-05-c7-1d-61\WpadDecisionTime = f0febe1dcea2da01 mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 832 wrote to memory of 1976 832 rundll32.exe rundll32.exe PID 832 wrote to memory of 1976 832 rundll32.exe rundll32.exe PID 832 wrote to memory of 1976 832 rundll32.exe rundll32.exe PID 832 wrote to memory of 1976 832 rundll32.exe rundll32.exe PID 832 wrote to memory of 1976 832 rundll32.exe rundll32.exe PID 832 wrote to memory of 1976 832 rundll32.exe rundll32.exe PID 832 wrote to memory of 1976 832 rundll32.exe rundll32.exe PID 1976 wrote to memory of 1616 1976 rundll32.exe mssecsvc.exe PID 1976 wrote to memory of 1616 1976 rundll32.exe mssecsvc.exe PID 1976 wrote to memory of 1616 1976 rundll32.exe mssecsvc.exe PID 1976 wrote to memory of 1616 1976 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2ee9049671c6fdcda29351ac72b4e29a_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:832 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2ee9049671c6fdcda29351ac72b4e29a_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1976 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1616 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2684
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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:2556
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD502bdea71d4aaeecce7350259d55713e6
SHA1972aa6f514a3f08bca2ce5f0ebc469c2c89a60e0
SHA25609903b550b5425b3177f047d7b5516c83f1afa1a7bf3d593e51cdb9431a24374
SHA5121b4bf170f44ebe2822dbcfc43023f67b472f832112c535494dc79c6863661d6922bf90a885cf49ee5e5e728472f55345897cef2dfc1e5ef7a2e3f87d48428da2
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C:\Windows\tasksche.exeFilesize
3.4MB
MD52e3c39e51cac6f084bafe8b116363342
SHA158353fa59e76d24bcddedf183d15d41481e67efe
SHA256447599e6b7a2fbc0b586d1e04d11a97ac43b9daae279f74a19de26cd7aeed875
SHA512783cf2d4452c7fbbcbee955367eca14958f415f53830f2a2f32003f7ad66c55b30fd5c02dc6fe97e51cd46bcaf80eb9ef79b77b8f8b7e994bd854eb1eb7cc53d