Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
08-05-2024 09:49
Static task
static1
Behavioral task
behavioral1
Sample
244b64b651e2da28939e05fb42ef2702_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
244b64b651e2da28939e05fb42ef2702_JaffaCakes118.dll
Resource
win10v2004-20240426-en
General
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Target
244b64b651e2da28939e05fb42ef2702_JaffaCakes118.dll
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Size
5.0MB
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MD5
244b64b651e2da28939e05fb42ef2702
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SHA1
39a3eb59c9938fe138a5cf342d8bf7a19a9aceec
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SHA256
07d8e93cf329be2ad6b950990385f6ca75c1ba3a4f21712c86f1924b17561b02
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SHA512
d395d3d8b85435bf4bec344620280ae2b739836e143893411f6047e886c89aceb8f921639ce8440b12b2dcc94b3421dff0b32280cd2b3cbc4c7714083af5a47d
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SSDEEP
49152:SnjQqMSPbcBVQej/eujAMEcaEau3R8yAH1plAH:+8qPoBhze4593R8yAVp2H
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3271) 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 2268 mssecsvc.exe 2508 mssecsvc.exe 2596 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 1 IoCs
Processes:
mssecsvc.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1740 wrote to memory of 1908 1740 rundll32.exe rundll32.exe PID 1740 wrote to memory of 1908 1740 rundll32.exe rundll32.exe PID 1740 wrote to memory of 1908 1740 rundll32.exe rundll32.exe PID 1740 wrote to memory of 1908 1740 rundll32.exe rundll32.exe PID 1740 wrote to memory of 1908 1740 rundll32.exe rundll32.exe PID 1740 wrote to memory of 1908 1740 rundll32.exe rundll32.exe PID 1740 wrote to memory of 1908 1740 rundll32.exe rundll32.exe PID 1908 wrote to memory of 2268 1908 rundll32.exe mssecsvc.exe PID 1908 wrote to memory of 2268 1908 rundll32.exe mssecsvc.exe PID 1908 wrote to memory of 2268 1908 rundll32.exe mssecsvc.exe PID 1908 wrote to memory of 2268 1908 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\244b64b651e2da28939e05fb42ef2702_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\244b64b651e2da28939e05fb42ef2702_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2268 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2596
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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:2508
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5322636a4e42ea476a0dd3bbd690212de
SHA1ee214deb35092b4e126801168c3dba55b7517d72
SHA25600342179af6bcb556e974f258686aa711c5d831516760a9edc2e83e62bb263a1
SHA5124c54efbf754beaf068792d722bee8dc70d66644c88cc03b7e60fa144821e75f1a017fc230a60cd733386cd890ca0345bd396e9c634778182072de419e68fecae
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C:\Windows\tasksche.exeFilesize
3.4MB
MD584351a30ade5e889745a6c897b0655c5
SHA19cf2512689152dd890e734574fd1901bfd4cb31f
SHA2563d4afb00a4ad754f856abf557f55abfbdc31468877d94ee2f7204d9e05f871e4
SHA5121055fe659d8f4c53711cffb117dd770cb974022164a942421627f53449734eb184014f6a0a5588134d032fc57f5fc23a3adce8c95e5caa280070c437d7c7eafa