Analysis
-
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
14-06-2024 04:48
Static task
static1
Behavioral task
behavioral1
Sample
a80c332f89ef54af079b36f9b7f43848_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a80c332f89ef54af079b36f9b7f43848_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
-
Target
a80c332f89ef54af079b36f9b7f43848_JaffaCakes118.dll
-
Size
5.0MB
-
MD5
a80c332f89ef54af079b36f9b7f43848
-
SHA1
9f9490666b6e9c4e286321fbdba587997322fcc7
-
SHA256
a41062ef62f9881bc43d6315ef440cafcbe9e2765f7340f2610d316f44306fec
-
SHA512
a44d47e192180b3515a07b45f23dfc35baa4afe8b203de6ac37d87e955558f01235c508795c8f8865d3d76617a8fa2cfde3d152fc1c611508fa141d589e95f3a
-
SSDEEP
98304:+DqPoBhz1aRxcSUDk36SAEdhvxWa9P593R88:+DqPe1Cxcxk3ZAEUadzR8
Malware Config
Signatures
-
Wannacry
WannaCry is a ransomware cryptoworm.
-
Contacts a large (2696) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
-
Executes dropped EXE 3 IoCs
Processes:
mssecsvc.exemssecsvc.exetasksche.exepid process 464 mssecsvc.exe 2708 mssecsvc.exe 1196 tasksche.exe -
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
-
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 1584 2976 rundll32.exe rundll32.exe PID 2976 wrote to memory of 1584 2976 rundll32.exe rundll32.exe PID 2976 wrote to memory of 1584 2976 rundll32.exe rundll32.exe PID 1584 wrote to memory of 464 1584 rundll32.exe mssecsvc.exe PID 1584 wrote to memory of 464 1584 rundll32.exe mssecsvc.exe PID 1584 wrote to memory of 464 1584 rundll32.exe mssecsvc.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a80c332f89ef54af079b36f9b7f43848_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2976 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a80c332f89ef54af079b36f9b7f43848_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1584 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:464 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:1196
-
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2708
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
3.6MB
MD5a08cc91f15c5102630c134ebf7589f8c
SHA1d8e9a7e895832518e9dcfbf6796b701fc2b5098e
SHA256d9e050988aa122ed60c223ed749013771897ff6bb2194aa69d0c77cf38c989b2
SHA5124e6195e6a409697734daa080e5c74e7ae058e3c623d7f7d350d044b72ef8bdd6eb7e1454e990818adcb4c506498e2a799981f4147aa705a03f645f9bca3c6fc2
-
Filesize
3.4MB
MD517d79f96710365f9c512cc179c205f49
SHA1e32f8dcde8508d40af3731477b89af57590d3f5b
SHA2565491ec65e007e50580f6444713dfb558a62c38a4727408e85eb9c92080bad7bd
SHA51265fc26a1ea73380ed3c3720a7e3aeb3ed87a50623cdd776008671a10e4fe197625e19e8f18567dfec750fe811a7239e42f3e76a36013283fc85e10fc5cbdb28c