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
10-05-2024 17:07
Static task
static1
Behavioral task
behavioral1
Sample
30269a68cddaebb3be0b1dffc64b0a68_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
30269a68cddaebb3be0b1dffc64b0a68_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
30269a68cddaebb3be0b1dffc64b0a68_JaffaCakes118.dll
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Size
5.0MB
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MD5
30269a68cddaebb3be0b1dffc64b0a68
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SHA1
ed3a7ab1165e1e5e74bc5ae43947b6e105e170b7
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SHA256
5a2204b32ac7c60004c6a214effa87b5b9d9e647b60d1a1d62e44eebdd2bc93e
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SHA512
37bc8164382144e04419b5060c505252424f62d90b6ab364eb564b42bac9cda5387914e3e660473f3cddb0b5786d64ca50927fcff7554e863011e5cb101a0720
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SSDEEP
24576:SbLgddQhfdmMSirYbcMNgef0Bt/8uME7A4kqAH1pNZtA0p+9XEk:SnAQqMSPbcBVB3R8yAH1plAH
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3185) 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 5048 mssecsvc.exe 4284 mssecsvc.exe 4952 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 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 5 IoCs
Processes:
mssecsvc.exedescription ioc process 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 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 -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 4536 wrote to memory of 212 4536 rundll32.exe rundll32.exe PID 4536 wrote to memory of 212 4536 rundll32.exe rundll32.exe PID 4536 wrote to memory of 212 4536 rundll32.exe rundll32.exe PID 212 wrote to memory of 5048 212 rundll32.exe mssecsvc.exe PID 212 wrote to memory of 5048 212 rundll32.exe mssecsvc.exe PID 212 wrote to memory of 5048 212 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\30269a68cddaebb3be0b1dffc64b0a68_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\30269a68cddaebb3be0b1dffc64b0a68_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:212 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:5048 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:4952
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4284
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD5d9f34b53dea18e9572d5483c63f1cb0f
SHA198e311a6572a6dc6a1ff6bd72b03237d7e7d1bbb
SHA256c9a1d6bb9d440c7cbb2c1b29a0d6e3a5d506bb54ae74749a9118b5d44d0fec48
SHA512263d3343b1f54555c5db90dcf2e0ea4ae714a5487c2509da228f2a05ef49744e27a854cbaa6acd8a7b2547c97eb366cf2c03e758c7d31276c19ca26ee72b7bc1
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C:\Windows\tasksche.exeFilesize
3.4MB
MD585dfcfd62baa38208ae5fadc00c38e81
SHA1ff360bad8a9f6f412b1ead2229fdcef650077ce3
SHA256cb7588b2c300fd90fdd381b67c5d40f4e43bd4f0598007353dc948680c971f74
SHA5123a3602612f1c0e1d9700729ee42eb4c87735f5fbedc71d706897a9d587736bff60a9dbc2688b317cdfc63b9a3483f95f1ab560a8a42e37f455f7bf653fdd777d