Analysis
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max time kernel
150s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10-05-2024 23:21
Static task
static1
Behavioral task
behavioral1
Sample
318d242361e7d8f331de4d54c200ee62_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
318d242361e7d8f331de4d54c200ee62_JaffaCakes118.dll
Resource
win10v2004-20240426-en
General
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Target
318d242361e7d8f331de4d54c200ee62_JaffaCakes118.dll
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Size
5.0MB
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MD5
318d242361e7d8f331de4d54c200ee62
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SHA1
acbfdb7e880d112534d107683410f8649753aebe
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SHA256
dc32d813ad214630bb37766a2b152e9956b3aa234c225c8685d9fc8086560ed7
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SHA512
b72b42edab5083e0d76f12f2cd74bf8ff192decb318e17c205d77696637fd3f32bd4434dcaa6013f46189d7863dabed94b2237f4c2a180d6d9f2c26ef36f923d
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SSDEEP
98304:+DqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp:+DqPe1Cxcxk3ZAEUadzR8yc
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3225) 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 1888 mssecsvc.exe 2500 mssecsvc.exe 2756 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 (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" 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 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-64-7e-e2-70-ca\WpadDecisionReason = "1" 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\Wpad\{059C0EE3-4216-4428-B4BF-2730C7C9FB29}\WpadDecisionTime = 20cc4ad730a3da01 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{059C0EE3-4216-4428-B4BF-2730C7C9FB29}\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-64-7e-e2-70-ca 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\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\ZoneMap\UNCAsIntranet = "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\ZoneMap\ mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0079000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{059C0EE3-4216-4428-B4BF-2730C7C9FB29}\WpadDecisionReason = "1" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{059C0EE3-4216-4428-B4BF-2730C7C9FB29}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{059C0EE3-4216-4428-B4BF-2730C7C9FB29}\8a-64-7e-e2-70-ca mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-64-7e-e2-70-ca\WpadDecisionTime = 20cc4ad730a3da01 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe 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 Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{059C0EE3-4216-4428-B4BF-2730C7C9FB29} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\8a-64-7e-e2-70-ca\WpadDecision = "0" mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2292 wrote to memory of 1500 2292 rundll32.exe rundll32.exe PID 2292 wrote to memory of 1500 2292 rundll32.exe rundll32.exe PID 2292 wrote to memory of 1500 2292 rundll32.exe rundll32.exe PID 2292 wrote to memory of 1500 2292 rundll32.exe rundll32.exe PID 2292 wrote to memory of 1500 2292 rundll32.exe rundll32.exe PID 2292 wrote to memory of 1500 2292 rundll32.exe rundll32.exe PID 2292 wrote to memory of 1500 2292 rundll32.exe rundll32.exe PID 1500 wrote to memory of 1888 1500 rundll32.exe mssecsvc.exe PID 1500 wrote to memory of 1888 1500 rundll32.exe mssecsvc.exe PID 1500 wrote to memory of 1888 1500 rundll32.exe mssecsvc.exe PID 1500 wrote to memory of 1888 1500 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\318d242361e7d8f331de4d54c200ee62_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2292 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\318d242361e7d8f331de4d54c200ee62_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1500 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:1888 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2756
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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:2500
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Windows\mssecsvc.exeFilesize
3.6MB
MD550157ef9512104f26b1945991fba273b
SHA187040bf3c9d15a6d211f7ff156978acd9b92704e
SHA25617b68f8b52c9d0eac70c02e938a6423849379c281e0ff992970f3cbf62d55117
SHA51210d9df25603256ac6a9b855df400875864ee40075d6823674fa9bd1e9c19ef58acc417e6fb53d39912c7e3190f50f046c785186602435cd4f66b5147e90fbd7f
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C:\Windows\tasksche.exeFilesize
3.4MB
MD5bf497822791ced8502e8e538a151bec8
SHA102401a4c315cc8edfdda20f320cd27a6fd8c4464
SHA256208ebf46de7d3e46daf6e57c6a442bfb86538decc9de1db80dbe6c544a8ea862
SHA512af309545278acf8868d818ec1607ee426c7bd4acd3682cd7ab7ab731b560b571154dde9244437640cf7a49822ae584e0a006d3816b39aa5f064a5d2366c284fe