Analysis
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max time kernel
151s -
max time network
157s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13-09-2024 09:01
Static task
static1
Behavioral task
behavioral1
Sample
de1aee5ebf0e837c77b7b77f6f83c09c_JaffaCakes118.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
de1aee5ebf0e837c77b7b77f6f83c09c_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
de1aee5ebf0e837c77b7b77f6f83c09c_JaffaCakes118.dll
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Size
5.0MB
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MD5
de1aee5ebf0e837c77b7b77f6f83c09c
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SHA1
a73dbafe72e85ef5d1caf45da7d820e040a23b53
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SHA256
b0a834831510356174b7563bc79404b1790945a94e93bd989b165d954e8bc4d7
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SHA512
762364c33945ddd04c87e31098d0ab5eb2418e7d8624808f9bc4b5a3b4b23417afde77616f14271cc1079275b5a2ff2c8fe913e34e4448081ccf9195abba529b
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SSDEEP
24576:SbLgddQhfdmMSirYbcMNgef0Td1AygfLO0:SnAQqMSPbcBVTHAD
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3172) 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 2760 mssecsvc.exe 2860 mssecsvc.exe 2652 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\ZoneMap\ mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-f5-22-4e-3c-5d\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-f5-22-4e-3c-5d\WpadDecisionTime = c09f109cbb05db01 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-f5-22-4e-3c-5d\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad 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 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{979EA6AF-43B1-4C36-B9E1-19C27ED718B4}\WpadDecisionTime = c09f109cbb05db01 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{979EA6AF-43B1-4C36-B9E1-19C27ED718B4}\WpadDecision = "0" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-f5-22-4e-3c-5d 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\Wpad\{979EA6AF-43B1-4C36-B9E1-19C27ED718B4}\f6-f5-22-4e-3c-5d mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "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\Content\CachePrefix mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{979EA6AF-43B1-4C36-B9E1-19C27ED718B4} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{979EA6AF-43B1-4C36-B9E1-19C27ED718B4}\WpadDecisionReason = "1" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{979EA6AF-43B1-4C36-B9E1-19C27ED718B4}\WpadNetworkName = "Network 3" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2276 wrote to memory of 2228 2276 rundll32.exe 30 PID 2276 wrote to memory of 2228 2276 rundll32.exe 30 PID 2276 wrote to memory of 2228 2276 rundll32.exe 30 PID 2276 wrote to memory of 2228 2276 rundll32.exe 30 PID 2276 wrote to memory of 2228 2276 rundll32.exe 30 PID 2276 wrote to memory of 2228 2276 rundll32.exe 30 PID 2276 wrote to memory of 2228 2276 rundll32.exe 30 PID 2228 wrote to memory of 2760 2228 rundll32.exe 31 PID 2228 wrote to memory of 2760 2228 rundll32.exe 31 PID 2228 wrote to memory of 2760 2228 rundll32.exe 31 PID 2228 wrote to memory of 2760 2228 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\de1aee5ebf0e837c77b7b77f6f83c09c_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\de1aee5ebf0e837c77b7b77f6f83c09c_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2228 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2760 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2652
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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:2860
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5ef237db174d6c354530d76dcf762f5f7
SHA1fc1dc66cf2aae50302be21af2c93d13630f873f2
SHA256697389c8a21f91fcb29c6dec488aafc6876159286d25a8c1e232bab0fd51a24d
SHA512edfd096c77b8ba4eca9ec12f01744a3fed4172d70e86ecd8e935e5e836326633fe31b8acca35e05335771ed9b4f6cd87cbdb83ea73486b7e1f741f1dbb7b19bd
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Filesize
3.4MB
MD56d0f32a68bf1dd3f02a24523f54c6058
SHA1e866673e8a53cec873f5c6a94457253735c09614
SHA2564a7bc817ea0dc3f4d7f8c3f7e70738519ede4db0c70e64cb6546b53a9122a0df
SHA512043c2a65a542af921ba1895344abe6654175d556de2d9a8b84159b6c68257a3bd2424065ab8607bd56aeb2aeb8bb9874064a53b9dc128802c2dbc5f90232b28b