Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
06-09-2024 10:15
Static task
static1
Behavioral task
behavioral1
Sample
cf4f46336abeec03630297f846d17482_JaffaCakes118.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
cf4f46336abeec03630297f846d17482_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
cf4f46336abeec03630297f846d17482_JaffaCakes118.dll
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Size
5.0MB
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MD5
cf4f46336abeec03630297f846d17482
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SHA1
9bd7e03423cda2792e9f9dfc74fbf517fcbbc585
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SHA256
f54fbfcb038af9a12d446f0150b97fef7a71ca02eec07c517f0ed00fdbea8185
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SHA512
b4c5f054991a2a6c1298d92756a4ec423bdedcc6d853882e2a4c65275765b08258f2c46c5d48681dc60d26887f994d8baa48b3e60bc0df3054f28b570ef8f307
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SSDEEP
98304:TDqPoBhz1aRxcSUDk36SAEdhvxWa9P593:TDqPe1Cxcxk3ZAEUadz
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3294) 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
pid Process 2080 mssecsvc.exe 2744 mssecsvc.exe 2728 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
description 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
description ioc Process File created C:\WINDOWS\mssecsvc.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvc.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mssecsvc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mssecsvc.exe -
Modifies data under HKEY_USERS 24 IoCs
description ioc Process 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 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\72-d9-e7-39-62-24 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\72-d9-e7-39-62-24 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 (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\{95003F8B-1B5B-4681-A047-222F0310ECE9} mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\WpadDecisionTime = d078aca64500db01 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 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\WpadDecisionReason = "1" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\WpadNetworkName = "Network 3" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-d9-e7-39-62-24\WpadDecision = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 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\AutoDetect = "1" 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\Wpad\{95003F8B-1B5B-4681-A047-222F0310ECE9}\WpadDecision = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-d9-e7-39-62-24\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-d9-e7-39-62-24\WpadDecisionTime = d078aca64500db01 mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2920 wrote to memory of 1600 2920 rundll32.exe 28 PID 2920 wrote to memory of 1600 2920 rundll32.exe 28 PID 2920 wrote to memory of 1600 2920 rundll32.exe 28 PID 2920 wrote to memory of 1600 2920 rundll32.exe 28 PID 2920 wrote to memory of 1600 2920 rundll32.exe 28 PID 2920 wrote to memory of 1600 2920 rundll32.exe 28 PID 2920 wrote to memory of 1600 2920 rundll32.exe 28 PID 1600 wrote to memory of 2080 1600 rundll32.exe 29 PID 1600 wrote to memory of 2080 1600 rundll32.exe 29 PID 1600 wrote to memory of 2080 1600 rundll32.exe 29 PID 1600 wrote to memory of 2080 1600 rundll32.exe 29
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\cf4f46336abeec03630297f846d17482_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\cf4f46336abeec03630297f846d17482_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2080 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2728
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2744
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5c18efac56280dfe18ebd1f361029d3f7
SHA1b079ad82c2341e9178ced0b6a62a484a12075b56
SHA256d013be1440f64e234c7631f2a3bb1b4d7c12bcb97d3804dc0e66753cde13ebc8
SHA5128d1b77db6ad14e282cbcd3424318ee1457430e55d94fc7e27c528060082ec968d7ddee605784cc08ce216bcbed7486991dd36168bc01e3a56268c2d33b828191
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Filesize
3.4MB
MD5fc0195c3fbc9d1ba19811d3c36b2bea4
SHA1d618abf74712f8730fbad1d0988d1c30e1ec036b
SHA2560c2837a2d107e6f9b508e63a48da7ef89e902907df6102a9de2fd2509316f739
SHA51201423a0dd12ce2b337ef97087073945c9282cc0c51d8be12c43425e3357292b92f29ed43af52e7d6ff34adbb1cc10f8b34d2362995b3a9248bad71337b92d965