Analysis
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max time kernel
150s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13-09-2024 09:50
Static task
static1
Behavioral task
behavioral1
Sample
de29e686d671cdbc56a3cb5c292835d6_JaffaCakes118.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
de29e686d671cdbc56a3cb5c292835d6_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
de29e686d671cdbc56a3cb5c292835d6_JaffaCakes118.dll
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Size
5.0MB
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MD5
de29e686d671cdbc56a3cb5c292835d6
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SHA1
cfa871df1c513580df5a52c1da565157360dd712
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SHA256
5b4de6be0fa7c194ffedce0788448deb54ed34da26388a5fa554a3472741bf77
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SHA512
22093193b1d8d54156766e137ddc6944affd76094aaf797b5bd36b0b4f0b052583a9d62be6f7172687cc5ff2dfab22684adc18c19c526993a8ce98fdc6cda1c6
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SSDEEP
98304:+DqPoBhz1aRxcSUDk36SAEdhvxWa9P593mX7bJ6v0:+DqPe1Cxcxk3ZAEUadzmX7bQv0
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3281) 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 908 mssecsvc.exe 2572 mssecsvc.exe 2828 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 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 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" 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\History\CachePrefix = "Visited:" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D800F1A-0E69-452F-AEEE-47F7FA174BAC} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D800F1A-0E69-452F-AEEE-47F7FA174BAC}\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-a9-90-00-b0-f0\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-a9-90-00-b0-f0 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\Wpad\{6D800F1A-0E69-452F-AEEE-47F7FA174BAC}\WpadDecisionTime = d0d7c96bc205db01 mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D800F1A-0E69-452F-AEEE-47F7FA174BAC}\WpadNetworkName = "Network 3" 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\ZoneMap\ mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6D800F1A-0E69-452F-AEEE-47F7FA174BAC}\4a-a9-90-00-b0-f0 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-a9-90-00-b0-f0\WpadDecisionTime = d0d7c96bc205db01 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\ZoneMap\UNCAsIntranet = "0" 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\{6D800F1A-0E69-452F-AEEE-47F7FA174BAC}\WpadDecision = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-a9-90-00-b0-f0\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2908 wrote to memory of 2304 2908 rundll32.exe 30 PID 2908 wrote to memory of 2304 2908 rundll32.exe 30 PID 2908 wrote to memory of 2304 2908 rundll32.exe 30 PID 2908 wrote to memory of 2304 2908 rundll32.exe 30 PID 2908 wrote to memory of 2304 2908 rundll32.exe 30 PID 2908 wrote to memory of 2304 2908 rundll32.exe 30 PID 2908 wrote to memory of 2304 2908 rundll32.exe 30 PID 2304 wrote to memory of 908 2304 rundll32.exe 31 PID 2304 wrote to memory of 908 2304 rundll32.exe 31 PID 2304 wrote to memory of 908 2304 rundll32.exe 31 PID 2304 wrote to memory of 908 2304 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\de29e686d671cdbc56a3cb5c292835d6_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\de29e686d671cdbc56a3cb5c292835d6_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:908 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2828
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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:2572
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5b5f9eded609339c4f3f2980118938b12
SHA16ad5f53ac87c80f199b85b1a913816da0671288b
SHA25611cb4ee96a030138522bac4d17d9a4b16574474ee3213928eb9476ae31422c43
SHA51207a998f329457a51a0a68970e489763a70dafa746f30816ce15b239ad1f726d22fc757b0a3efa8dc0ddd278f5d467765cd981741f98c64398a1558f03307c4b6
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Filesize
3.4MB
MD54b453def4bfc3dee8a9d163f40676bde
SHA193a24bcaabcff99dffc5639327113855591f4cea
SHA256e91b67fff3f2582641dcbb8feadc486b91ac9a1cfecbafb13d8e6fc1e2e96741
SHA512b2890fc355863d215908adc18730f343bbb0980d76e051e4a46ada2f86eb12a9eae39867636180cc8b74096d1922d93ba20bb041213978e23dba12b18220419b