Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
24/08/2024, 02:01 UTC
Static task
static1
Behavioral task
behavioral1
Sample
bdcaf7ef34cd9b02932e5ee2297e4893_JaffaCakes118.dll
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
bdcaf7ef34cd9b02932e5ee2297e4893_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
bdcaf7ef34cd9b02932e5ee2297e4893_JaffaCakes118.dll
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Size
5.0MB
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MD5
bdcaf7ef34cd9b02932e5ee2297e4893
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SHA1
0a29bcc5c829e276d06ea92919de2740b938691c
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SHA256
8d0c9d2e438f33dd7806ed8017baa1f114b6157f9f0eb1fb5d3b59351609120c
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SHA512
8c0fbf6444aee59f47ab4f6f9c0f0182db3c332c35725a32757055bdc522ef8e192f7ca2fbe7fe080c3a12090030e58bdce179fe0c2b2d0eeaa387c7c5aba81d
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SSDEEP
24576:RbLgurihdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz66:RnnMSPbcBVQej/1INR
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (2084) 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 320 mssecsvr.exe 2572 mssecsvr.exe -
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 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 mssecsvr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mssecsvr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Modifies data under HKEY_USERS 24 IoCs
description ioc Process 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\UNCAsIntranet = "0" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D85A6F2D-F366-4708-9FE6-57FA910C7431}\WpadDecisionReason = "1" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections 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\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\Wpad\{D85A6F2D-F366-4708-9FE6-57FA910C7431} mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-a3-c2-ef-3c-e4\WpadDecisionTime = 2023678cc9f5da01 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\Wpad\{D85A6F2D-F366-4708-9FE6-57FA910C7431}\WpadNetworkName = "Network 3" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D85A6F2D-F366-4708-9FE6-57FA910C7431}\WpadDecisionTime = 2023678cc9f5da01 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D85A6F2D-F366-4708-9FE6-57FA910C7431}\WpadDecision = "0" mssecsvr.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D85A6F2D-F366-4708-9FE6-57FA910C7431}\d2-a3-c2-ef-3c-e4 mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-a3-c2-ef-3c-e4\WpadDecisionReason = "1" mssecsvr.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-a3-c2-ef-3c-e4\WpadDecision = "0" mssecsvr.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d2-a3-c2-ef-3c-e4 mssecsvr.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2976 wrote to memory of 2612 2976 rundll32.exe 30 PID 2976 wrote to memory of 2612 2976 rundll32.exe 30 PID 2976 wrote to memory of 2612 2976 rundll32.exe 30 PID 2976 wrote to memory of 2612 2976 rundll32.exe 30 PID 2976 wrote to memory of 2612 2976 rundll32.exe 30 PID 2976 wrote to memory of 2612 2976 rundll32.exe 30 PID 2976 wrote to memory of 2612 2976 rundll32.exe 30 PID 2612 wrote to memory of 320 2612 rundll32.exe 31 PID 2612 wrote to memory of 320 2612 rundll32.exe 31 PID 2612 wrote to memory of 320 2612 rundll32.exe 31 PID 2612 wrote to memory of 320 2612 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bdcaf7ef34cd9b02932e5ee2297e4893_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2976 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bdcaf7ef34cd9b02932e5ee2297e4893_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2612 -
C:\WINDOWS\mssecsvr.exeC:\WINDOWS\mssecsvr.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:320
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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:2572
Network
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Remote address:8.8.8.8:53Requestwww.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.comIN AResponsewww.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.comIN A103.224.212.215
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MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.2MB
MD5b6fb8bd123bd0c46cc1a17a2775569b5
SHA166f8bf693d6e2a83e9be412ac884f1cc95e0f61f
SHA25628bbb171c2fa89f6750e793daa0b6e093531a559ed3873cc7014a241ae93f22c
SHA5124a857085593378d6079d7f4246451fff600f09461ae4faf33d9cc52c9510a7b7005379a89d38ce635df206078a28a90b00122ac8de34ab26e09af297df316a19