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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04/05/2024, 14:04
Static task
static1
Behavioral task
behavioral1
Sample
1307057e6fadcf0d67764b9b44a679f9_JaffaCakes118.dll
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
1307057e6fadcf0d67764b9b44a679f9_JaffaCakes118.dll
Resource
win10v2004-20240419-en
General
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Target
1307057e6fadcf0d67764b9b44a679f9_JaffaCakes118.dll
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Size
5.0MB
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MD5
1307057e6fadcf0d67764b9b44a679f9
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SHA1
4613beaee1e9b76a80fe801e1f60be094e7dcea7
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SHA256
0e1ab75ab474f63458548f47eaa4f81564a8259adb2514db69154ba1ae3f5248
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SHA512
9abf5383d89d6dfd4cd3b4ebe27e0724a3d1c7e131c49f48c5f57e5d3bbacc7f36842e146da421d49a544332fdc8b6ef6a692155ba662976ade3eba805261b6c
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SSDEEP
98304:TDqPoBhz1aRxcSUDk36SAEdhvxWa9P593e/:TDqPe1Cxcxk3ZAEUadze/
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3259) 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 2936 mssecsvc.exe 2796 mssecsvc.exe 2660 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 -
Modifies data under HKEY_USERS 24 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-13-92-9e-a4-c3\WpadDecisionTime = e04c85102c9eda01 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\Wpad\a2-13-92-9e-a4-c3\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe 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\Content\CachePrefix mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 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\{E97642A1-EA6C-47D0-ADFB-7C153167EBD7}\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections mssecsvc.exe 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\Wpad\a2-13-92-9e-a4-c3 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E97642A1-EA6C-47D0-ADFB-7C153167EBD7}\a2-13-92-9e-a4-c3 mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E97642A1-EA6C-47D0-ADFB-7C153167EBD7}\WpadDecision = "0" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E97642A1-EA6C-47D0-ADFB-7C153167EBD7}\WpadNetworkName = "Network 3" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-13-92-9e-a4-c3\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 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E97642A1-EA6C-47D0-ADFB-7C153167EBD7} mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E97642A1-EA6C-47D0-ADFB-7C153167EBD7}\WpadDecisionTime = e04c85102c9eda01 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\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0103000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1952 wrote to memory of 2688 1952 rundll32.exe 28 PID 1952 wrote to memory of 2688 1952 rundll32.exe 28 PID 1952 wrote to memory of 2688 1952 rundll32.exe 28 PID 1952 wrote to memory of 2688 1952 rundll32.exe 28 PID 1952 wrote to memory of 2688 1952 rundll32.exe 28 PID 1952 wrote to memory of 2688 1952 rundll32.exe 28 PID 1952 wrote to memory of 2688 1952 rundll32.exe 28 PID 2688 wrote to memory of 2936 2688 rundll32.exe 29 PID 2688 wrote to memory of 2936 2688 rundll32.exe 29 PID 2688 wrote to memory of 2936 2688 rundll32.exe 29 PID 2688 wrote to memory of 2936 2688 rundll32.exe 29
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1307057e6fadcf0d67764b9b44a679f9_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1307057e6fadcf0d67764b9b44a679f9_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2688 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2936 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2660
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C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe -m security1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2796
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD529696311e8e276907d46ff93387e4d64
SHA17efca2527e5d143226f6b1f7cbb46ac5461df68f
SHA256ea3ccc9228b5715ee494cf48ac3e16e7083a819327f078b4de11e2bd97011026
SHA512e86cde7699d8cd0dc7b83dec7ac4a0aceb8ba4063d34273fe8262be3e1677b0f9af07dd751daef175fc0131952cac05fee5f8ad30323628cb3bcef530f1759ad
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Filesize
3.4MB
MD537a6bb3b2972bb680119b16b231bc500
SHA17932eb4f9e6a10a551de47ef35f39cf9283300ef
SHA25639e432a8eac4cfbb092bb4abba6911b88acbdfc52f9610b9dbf595b4d5f4b726
SHA512be846abb162f53bab50073c9903c8a1c0ddc11e6d8a6da12dd52cdba71ecb233acf561a6b1b2d3a7a95acd122f005dbb14a80f017170c703eb486575c637236d