Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
24-09-2024 18:41
Static task
static1
Behavioral task
behavioral1
Sample
f4467cf9b7f5c536f0766ac2851b53b7_JaffaCakes118.dll
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
f4467cf9b7f5c536f0766ac2851b53b7_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
f4467cf9b7f5c536f0766ac2851b53b7_JaffaCakes118.dll
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Size
5.0MB
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MD5
f4467cf9b7f5c536f0766ac2851b53b7
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SHA1
5c64d92015518d307b5e5856bc4e4ced71a08c2b
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SHA256
89f0d1195df4ff42f0d0ff7726474b2ad6a135cbc78f255ff89b19903459bc67
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SHA512
3a7bd00462040ed25e29ceef192dfcba74b81811465f5921b0a09deb4b3845e1686ed274ae12568f60ebee6fd9c6dbbc4cfd56a727f944101b1a86a38cc4c4a4
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SSDEEP
24576:RbLgurihdmMSirYbcMNgef0QeQjG/D8kIqRYo:RnnMSPbcBVQej/1
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3352) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
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Executes dropped EXE 2 IoCs
pid Process 3368 mssecsvr.exe 3404 mssecsvr.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 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 mssecsvr.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE mssecsvr.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies mssecsvr.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 mssecsvr.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\WINDOWS\mssecsvr.exe rundll32.exe File created C:\WINDOWS\tasksche.exe mssecsvr.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 mssecsvr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mssecsvr.exe -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" mssecsvr.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2324 wrote to memory of 4836 2324 rundll32.exe 82 PID 2324 wrote to memory of 4836 2324 rundll32.exe 82 PID 2324 wrote to memory of 4836 2324 rundll32.exe 82 PID 4836 wrote to memory of 3368 4836 rundll32.exe 83 PID 4836 wrote to memory of 3368 4836 rundll32.exe 83 PID 4836 wrote to memory of 3368 4836 rundll32.exe 83
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f4467cf9b7f5c536f0766ac2851b53b7_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2324 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f4467cf9b7f5c536f0766ac2851b53b7_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4836 -
C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3368
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C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3404
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD5835246cd3690184218773906a49d8328
SHA1b2dac297dcbb073df798a3dd6558e88b4e0077e2
SHA2563cd461eac607ef830a2a34430ae0eebc13625b4bde5fce5579dd68eba8e47cfe
SHA5129c454c1bc39b5155cf065c70fb0a6743cd7e0f119839e6bd8aae4c7b5605e364b2bcfcc8d6f97bd68fd48ff1a65291b829a1d2ea8ddba1cdacd475c8d8ee17ec