Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
16-06-2024 08:21
Static task
static1
Behavioral task
behavioral1
Sample
b28c928b3771452c46377792932e0548_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
b28c928b3771452c46377792932e0548_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
b28c928b3771452c46377792932e0548_JaffaCakes118.dll
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Size
5.0MB
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MD5
b28c928b3771452c46377792932e0548
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SHA1
dc88d6186cb3d8a545d8da8ae8621d7bb4b7a960
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SHA256
9611482523c3c6b8f4d33ce3bb921d3ee8b466435b74982c912c20e47951e479
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SHA512
5e9cc140ced61a4e78bcb94187fadd3006dac7d3ba2e02f77d132e9985a8aafa2fe8fa38b25207b224a3cb94f503cc63df3af1062562789b7d88e8a6cc8c95ba
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SSDEEP
98304:+DqPoBhz1asSbevWSdOLZsxWxPebdWPp2:+DqPe1ubNiOLFwbd64
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (2687) 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 3168 mssecsvc.exe 1140 mssecsvc.exe 4608 tasksche.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 5 IoCs
Processes:
mssecsvc.exedescription ioc process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 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\ProxyBypass = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" mssecsvc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2976 wrote to memory of 4348 2976 rundll32.exe rundll32.exe PID 2976 wrote to memory of 4348 2976 rundll32.exe rundll32.exe PID 2976 wrote to memory of 4348 2976 rundll32.exe rundll32.exe PID 4348 wrote to memory of 3168 4348 rundll32.exe mssecsvc.exe PID 4348 wrote to memory of 3168 4348 rundll32.exe mssecsvc.exe PID 4348 wrote to memory of 3168 4348 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b28c928b3771452c46377792932e0548_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2976 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b28c928b3771452c46377792932e0548_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4348 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:3168 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:4608
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1140
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5884c6830d1099d10d285a5da465b62b3
SHA1c7daa380e6fad971495f6890c57660c95f0e0bf5
SHA256389f76549d6165d8428aa532e91e1b3cd6c23a834d245f9724cf3306b19656df
SHA512f0d6ec54018e2852675a69c181d033fe4b717a6683fae8e108f29f27fa3ed19e94f97af9806add6d346ed952954634b9d2569ca6df3e0d114e22d7de06571bc1
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Filesize
3.4MB
MD564a1cc9fd45dd25d65e8bccb44fb6a2e
SHA1601dac2fab3afebf40b8792ec0ae902ded11651c
SHA256664e0ae46581cb76eb5241da08cf2b5be72828d0d06bacf3cd07b21b51a91f77
SHA512e50fb3d0cb1145215ac8afc08a0a55d38e3edf234b56444c1654ef5217e3f6eff4601889024dd5b0131c6ee9250e89ba85fee8a6d907028917859ad34e051316