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Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
25/07/2024, 06:21
Static task
static1
Behavioral task
behavioral1
Sample
6e72ad805b4322612b9c9c7673a45635_JaffaCakes118.dll
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
6e72ad805b4322612b9c9c7673a45635_JaffaCakes118.dll
Resource
win10v2004-20240709-en
General
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Target
6e72ad805b4322612b9c9c7673a45635_JaffaCakes118.dll
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Size
5.0MB
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MD5
6e72ad805b4322612b9c9c7673a45635
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SHA1
e3727e0d38ee247b654441df50aa1acdd328eb32
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SHA256
b0e30d10f4286ad0385e153ad92aada9dd80dac64fc12a5136836bdc7d693014
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SHA512
ccc96dac68d6c4cb4affc145c2b321ef0901640f2ae03866ced339cb0e4c5758a7cc0bbff05ce8da0e9324d7da18507c4ab55b18a25e7126210b3cdce02a3048
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SSDEEP
49152:RnsQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:1/qPoBhz1aRxcSUDk36SAEdhv
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3285) 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 4288 mssecsvr.exe 4092 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\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 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.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 (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 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 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings 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\CurrentVersion mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix mssecsvr.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvr.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3428 wrote to memory of 2804 3428 rundll32.exe 84 PID 3428 wrote to memory of 2804 3428 rundll32.exe 84 PID 3428 wrote to memory of 2804 3428 rundll32.exe 84 PID 2804 wrote to memory of 4288 2804 rundll32.exe 85 PID 2804 wrote to memory of 4288 2804 rundll32.exe 85 PID 2804 wrote to memory of 4288 2804 rundll32.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\6e72ad805b4322612b9c9c7673a45635_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3428 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\6e72ad805b4322612b9c9c7673a45635_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804 -
C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4288
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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:4092
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD586f8e249b90a767d28be2d16eb702675
SHA12f486e523eaf7e003a79fe9388f801f479d2a20a
SHA2562a2693dec32d4921da632cafdbab98b3fdb4be3db9338692a7d09b93f21a60df
SHA512fcc4683c96d81a4818698a8480809251039718e5a0e43f4a6ac91d587924b28ad518922cf89f68921632340fb400b51060fde52126cfb043b8f995ff40d263ae