Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
18-05-2024 03:16
Static task
static1
Behavioral task
behavioral1
Sample
52cd053b0ecf5d351a4c376029d78ae0_JaffaCakes118.dll
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
52cd053b0ecf5d351a4c376029d78ae0_JaffaCakes118.dll
Resource
win10v2004-20240426-en
General
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Target
52cd053b0ecf5d351a4c376029d78ae0_JaffaCakes118.dll
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Size
5.0MB
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MD5
52cd053b0ecf5d351a4c376029d78ae0
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SHA1
770035329cd2ca417f5d1e23782d067244d4064e
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SHA256
4aa61b6b79b54ee13829fe08476e23bbeb325e31d4cf486bd86ff061b4bab022
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SHA512
12f6e931219352d6f67cbf28c6caa108bc2bfc6735bc1532c279fefb230821602549344a4418a68ea63cb13dd32d27a3d2d128c1804944f01aea305d3ce602ff
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SSDEEP
98304:TDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVpEmFe:TDqPe1Cxcxk3ZAEUadzR8yc
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Contacts a large (3315) 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
Processes:
mssecsvc.exemssecsvc.exetasksche.exepid process 2104 mssecsvc.exe 2628 mssecsvc.exe 2724 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
Processes:
mssecsvc.exedescription 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
Processes:
rundll32.exemssecsvc.exedescription 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
Processes:
mssecsvc.exedescription ioc process 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\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0039000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EF1C3EF9-27A5-4F1B-AC59-3D06AD9A4E66} mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EF1C3EF9-27A5-4F1B-AC59-3D06AD9A4E66}\WpadDecision = "0" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-6f-27-c5-88-1c\WpadDecision = "0" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 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 (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EF1C3EF9-27A5-4F1B-AC59-3D06AD9A4E66}\WpadNetworkName = "Network 3" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EF1C3EF9-27A5-4F1B-AC59-3D06AD9A4E66}\32-6f-27-c5-88-1c mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-6f-27-c5-88-1c\WpadDecisionReason = "1" mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections 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\History\CachePrefix = "Visited:" mssecsvc.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" mssecsvc.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EF1C3EF9-27A5-4F1B-AC59-3D06AD9A4E66}\WpadDecisionReason = "1" mssecsvc.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EF1C3EF9-27A5-4F1B-AC59-3D06AD9A4E66}\WpadDecisionTime = 102003d5d1a8da01 mssecsvc.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-6f-27-c5-88-1c 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 (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 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\Wpad\32-6f-27-c5-88-1c\WpadDecisionTime = 102003d5d1a8da01 mssecsvc.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2060 wrote to memory of 2096 2060 rundll32.exe rundll32.exe PID 2060 wrote to memory of 2096 2060 rundll32.exe rundll32.exe PID 2060 wrote to memory of 2096 2060 rundll32.exe rundll32.exe PID 2060 wrote to memory of 2096 2060 rundll32.exe rundll32.exe PID 2060 wrote to memory of 2096 2060 rundll32.exe rundll32.exe PID 2060 wrote to memory of 2096 2060 rundll32.exe rundll32.exe PID 2060 wrote to memory of 2096 2060 rundll32.exe rundll32.exe PID 2096 wrote to memory of 2104 2096 rundll32.exe mssecsvc.exe PID 2096 wrote to memory of 2104 2096 rundll32.exe mssecsvc.exe PID 2096 wrote to memory of 2104 2096 rundll32.exe mssecsvc.exe PID 2096 wrote to memory of 2104 2096 rundll32.exe mssecsvc.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\52cd053b0ecf5d351a4c376029d78ae0_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2060 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\52cd053b0ecf5d351a4c376029d78ae0_JaffaCakes118.dll,#12⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2096 -
C:\WINDOWS\mssecsvc.exeC:\WINDOWS\mssecsvc.exe3⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:2104 -
C:\WINDOWS\tasksche.exeC:\WINDOWS\tasksche.exe /i4⤵
- Executes dropped EXE
PID:2724
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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:2628
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.6MB
MD5ad8ba4f4893de54d7107a0e8dc34012a
SHA1651ea10d2297f6423f5e33adb6b59c7e3daa1d3e
SHA2564065abe54cdfc6811acc9e95cd133df0dd357c6cd9e8b410d65b42ac11ef7d86
SHA5122e955901dd8fe0e93d459f79703ad7da2349e04307779d46a1a502e96ff9726314775790742e072ca07321003f9c3c8aa93f522faeda5f920d87ba1c89a2ac8a
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Filesize
3.4MB
MD57d1151fe53162651bbc4bf86527604ea
SHA1144a39099ecae3e48eadc3307aef854a0f6751ae
SHA25619c5e5586f40847930b5d5af9942809602bbfc2fed1c2d78fd3ec7a3334c9ee3
SHA51269174a0bc599146fc5c9de5efa6736c9c4ffe9ea05111d15d797b12bf1a0056140d233cd3df4478b981a19252c209a2fe5605c27e49daf0b5fb47250287eb345