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
20-05-2024 10:31
Static task
static1
Behavioral task
behavioral1
Sample
5e9b954b8c515845290d7c35fb748559_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
5e9b954b8c515845290d7c35fb748559_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
5e9b954b8c515845290d7c35fb748559_JaffaCakes118.dll
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Size
5.0MB
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MD5
5e9b954b8c515845290d7c35fb748559
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SHA1
485f2c2e04192571ea699ce86175fe6a03e0bce4
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SHA256
d1df2a0fab72ebb3c8889e2d2dad722231a4f84a48b52b616352673f624da199
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SHA512
4aafd953c361a75f7b1c07a3b7cae4f830a4e1551122584bff39a04124cbca249810a023ee43c22042af9a2918756c1afbd6fa14c63880c3a22bebce2017b6e3
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SSDEEP
98304:+DqPoBQk36SAEdhvxWa9P593R8yAVp2H:+DqPtk3ZAEUadzR8yc4H
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3269) 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 1712 mssecsvc.exe 3036 mssecsvc.exe 2572 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 24 IoCs
Processes:
mssecsvc.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-d4-a9-e7-20-a3 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0114000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{17C975A2-8BE4-4EC8-9AE4-9EB1CB0AF809}\WpadDecisionReason = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{17C975A2-8BE4-4EC8-9AE4-9EB1CB0AF809}\WpadDecision = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-d4-a9-e7-20-a3\WpadDecisionReason = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "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\UNCAsIntranet = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{17C975A2-8BE4-4EC8-9AE4-9EB1CB0AF809} mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections 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\Wpad mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{17C975A2-8BE4-4EC8-9AE4-9EB1CB0AF809}\WpadDecisionTime = 901ca6f3a0aada01 mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{17C975A2-8BE4-4EC8-9AE4-9EB1CB0AF809}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{17C975A2-8BE4-4EC8-9AE4-9EB1CB0AF809}\92-d4-a9-e7-20-a3 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-d4-a9-e7-20-a3\WpadDecisionTime = 901ca6f3a0aada01 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\92-d4-a9-e7-20-a3\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2020 wrote to memory of 1816 2020 rundll32.exe rundll32.exe PID 2020 wrote to memory of 1816 2020 rundll32.exe rundll32.exe PID 2020 wrote to memory of 1816 2020 rundll32.exe rundll32.exe PID 2020 wrote to memory of 1816 2020 rundll32.exe rundll32.exe PID 2020 wrote to memory of 1816 2020 rundll32.exe rundll32.exe PID 2020 wrote to memory of 1816 2020 rundll32.exe rundll32.exe PID 2020 wrote to memory of 1816 2020 rundll32.exe rundll32.exe PID 1816 wrote to memory of 1712 1816 rundll32.exe mssecsvc.exe PID 1816 wrote to memory of 1712 1816 rundll32.exe mssecsvc.exe PID 1816 wrote to memory of 1712 1816 rundll32.exe mssecsvc.exe PID 1816 wrote to memory of 1712 1816 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\5e9b954b8c515845290d7c35fb748559_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\5e9b954b8c515845290d7c35fb748559_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1816 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1712 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2572
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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:3036
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5d0eed9be07964df59b247650b813c5a7
SHA1d1dd0d719345bf8d23437587fa44a8b3e6aa6000
SHA25610bb606f3ddc164ff302a03e0e534b6be3f485d1a9858b21978bb0cfd3df06ac
SHA512bb2be5908e2bda6475d4f05b3267ab0b2442d208ef531c68853361d1e0b4b9450a184bcda4beb7603375ddf6514a39b68c34e2ae88a2ed355dd1359b12691f67
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Filesize
3.4MB
MD59cf8869d9823f4ddac798510ab63e347
SHA156093197311a8edae0c3813756fa6a5813cad436
SHA256776f61e107b616a5008acb1794f359ac875cd0ed861be3730c60d8f42da977a8
SHA512ace5d0b5b15bda0726685576e10225fb5881ebe0b8ebdb28686f430cd4f4f679e46d7ae19976ec4406d57cb69f72265f30f6863de4b1b21ef79ebd34969a1dbe