Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
18-05-2024 23:04
Static task
static1
Behavioral task
behavioral1
Sample
574ca7876c6d4a640035f91c1665a633_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
574ca7876c6d4a640035f91c1665a633_JaffaCakes118.dll
Resource
win10v2004-20240508-en
General
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Target
574ca7876c6d4a640035f91c1665a633_JaffaCakes118.dll
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Size
5.0MB
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MD5
574ca7876c6d4a640035f91c1665a633
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SHA1
bf051dfcfa4520d1d9c2f40b630efc290a93323b
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SHA256
36ddc266209e3cb092e6157b382d1bd32921e0e71cc32a235a404de528f2050b
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SHA512
9100f561596a80b522ffaf4253be0a10656eef6cdb547e2c874fb4341a3b1c57791be01030a070a2e96d397141b74776a530baa9b8922aaee3670d9c49badd82
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SSDEEP
24576:SbLgddQhfdmMSirYbcMNgef0QeQjGG6SASk+K:SnAQqMSPbcBVQejG6SAA
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3120) 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 2220 mssecsvc.exe 2552 mssecsvc.exe 2072 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 Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 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 Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00fc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-dd-44-d3-61-61\WpadDecisionReason = "1" 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\Connections 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\Wpad\5e-dd-44-d3-61-61\WpadDecisionTime = f0d7dec977a9da01 mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9AE6BEA1-F50D-47DB-B21D-E151621223EB}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-dd-44-d3-61-61 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 Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9AE6BEA1-F50D-47DB-B21D-E151621223EB} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9AE6BEA1-F50D-47DB-B21D-E151621223EB}\WpadDecision = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9AE6BEA1-F50D-47DB-B21D-E151621223EB}\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9AE6BEA1-F50D-47DB-B21D-E151621223EB}\WpadDecisionTime = f0d7dec977a9da01 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9AE6BEA1-F50D-47DB-B21D-E151621223EB}\5e-dd-44-d3-61-61 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-dd-44-d3-61-61\WpadDecision = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2164 wrote to memory of 2732 2164 rundll32.exe rundll32.exe PID 2164 wrote to memory of 2732 2164 rundll32.exe rundll32.exe PID 2164 wrote to memory of 2732 2164 rundll32.exe rundll32.exe PID 2164 wrote to memory of 2732 2164 rundll32.exe rundll32.exe PID 2164 wrote to memory of 2732 2164 rundll32.exe rundll32.exe PID 2164 wrote to memory of 2732 2164 rundll32.exe rundll32.exe PID 2164 wrote to memory of 2732 2164 rundll32.exe rundll32.exe PID 2732 wrote to memory of 2220 2732 rundll32.exe mssecsvc.exe PID 2732 wrote to memory of 2220 2732 rundll32.exe mssecsvc.exe PID 2732 wrote to memory of 2220 2732 rundll32.exe mssecsvc.exe PID 2732 wrote to memory of 2220 2732 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\574ca7876c6d4a640035f91c1665a633_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2164 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\574ca7876c6d4a640035f91c1665a633_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2732 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2220 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2072
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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:2552
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5ca4c9af1e5dc25e629f4c72154cf0d44
SHA109b93333b9f7989b5979bea585eb7e59a663a47f
SHA256345fd855ff8608186c7ae47415224c9b5f03cbce5a7ba849271d642085964084
SHA5125ca005295f49bec90dde2c9363c02ca495084157f9bdf323cd3f9e45d01b1b066923b1c6d43ed580b83d6608af621f5e162d78ac88815c028f03aaebd62c37c8
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Filesize
3.4MB
MD5075cea82e165f698cecb8cae2b1bf4b4
SHA1010c89c9b60e434d435e86090325e5d6122bc713
SHA25666b9d9b81dee9122091495f6e4134045aa5e4f03fa4ace78029801bc7ff8d7ea
SHA512eccdc523aee3bcf0dbb9a7d7f2bd3d900c7855aaf639ecdf803c7f161e9fe40b122c594b34770ede6203828893d067377caf44277c78fba18641e7381ab069d4