Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
18-05-2024 20:00
Static task
static1
Behavioral task
behavioral1
Sample
56875f22059e653672e66730302965c4_JaffaCakes118.dll
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
56875f22059e653672e66730302965c4_JaffaCakes118.dll
Resource
win10v2004-20240426-en
General
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Target
56875f22059e653672e66730302965c4_JaffaCakes118.dll
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Size
5.0MB
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MD5
56875f22059e653672e66730302965c4
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SHA1
6ebcf1fd8de63b3b626f71404663f6252444e572
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SHA256
0dad13ecfa65bd4210e35201148bc7828a7096c585f94be34cf3cbf274b3fa58
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SHA512
f8a8365d66e73265383078683be7c920dd785816007329accb16cfd8bb68a3675b4905a484a2cb583f592601812ae26bde6b123a6721b8497d9b5915f4d8a1a5
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SSDEEP
49152:SnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARvxJM0H9PAMEcaEa:+DqPoBhz1aRxcSUDk36SA0xWa9P5
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3012) 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 2528 mssecsvc.exe 2592 mssecsvc.exe 2596 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\Cookies\CachePrefix = "Cookie:" 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\ZoneMap\UNCAsIntranet = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{01A45D5E-76FF-477B-A7DE-A1BC8D4D4C68} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{01A45D5E-76FF-477B-A7DE-A1BC8D4D4C68}\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{01A45D5E-76FF-477B-A7DE-A1BC8D4D4C68}\WpadDecisionTime = b0289b0c5ea9da01 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{01A45D5E-76FF-477B-A7DE-A1BC8D4D4C68}\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-bb-cc-da-af-40\WpadDecisionReason = "1" 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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0072000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{01A45D5E-76FF-477B-A7DE-A1BC8D4D4C68}\86-bb-cc-da-af-40 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-bb-cc-da-af-40\WpadDecisionTime = b0289b0c5ea9da01 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-bb-cc-da-af-40\WpadDecision = "0" 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 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 (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{01A45D5E-76FF-477B-A7DE-A1BC8D4D4C68}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-bb-cc-da-af-40 mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2980 wrote to memory of 2740 2980 rundll32.exe rundll32.exe PID 2980 wrote to memory of 2740 2980 rundll32.exe rundll32.exe PID 2980 wrote to memory of 2740 2980 rundll32.exe rundll32.exe PID 2980 wrote to memory of 2740 2980 rundll32.exe rundll32.exe PID 2980 wrote to memory of 2740 2980 rundll32.exe rundll32.exe PID 2980 wrote to memory of 2740 2980 rundll32.exe rundll32.exe PID 2980 wrote to memory of 2740 2980 rundll32.exe rundll32.exe PID 2740 wrote to memory of 2528 2740 rundll32.exe mssecsvc.exe PID 2740 wrote to memory of 2528 2740 rundll32.exe mssecsvc.exe PID 2740 wrote to memory of 2528 2740 rundll32.exe mssecsvc.exe PID 2740 wrote to memory of 2528 2740 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\56875f22059e653672e66730302965c4_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2980 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\56875f22059e653672e66730302965c4_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2528 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2596
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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:2592
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5e484fbb6c3c94830dd53cb43b850af1b
SHA166a26256d60d3665a14ba8eaa41b5f029efb72bd
SHA256492cbb421912e5545ce462eb79bbdf216f191c006e43d60f8b06f425eee4e886
SHA5124dbcb069bb1e1e1993646886740121de20f8220ec273cbdef7569b93d91d92d6c6427574d9bec1103de9f1cd34ce791110ee51be075e038b6afa498bcf2bb0de
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Filesize
3.4MB
MD5381da8e46195cf7bdbb5c9e2b70d85ce
SHA123c66370cea916f080f223d708db474d4b248963
SHA2568db5cffaba42128c71afe64b4c1c1ad01d9cbfa67ac8d68b3e9127b5e8a99bb7
SHA5126c9d649a306922c2e7bda9b9efea1e79a85a11bd3513e87a4cf90bf1fe5d52783fe2cad0b69092a114ce934fca03fe92e830e9649fa28f70b4b8357f69272ba7