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Analysis
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max time kernel
149s -
max time network
52s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
17/06/2024, 02:14
Static task
static1
Behavioral task
behavioral1
Sample
8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe
Resource
win10v2004-20240508-en
General
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Target
8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe
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Size
83KB
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MD5
d3cfcb43c8435705ba4aedc5a390b9bd
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SHA1
cb7c12c75fc47cd5acd71a0d5a455d95c8cf33fb
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SHA256
8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c
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SHA512
ab1faaee599fe51e005c5df2acca0a111cc4d3754c08880a7c07b409fa127a82aac1865fec907a9617c7e5d965e37f8ba44c7a8d5cdb50f57f60977522d4bf0f
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SSDEEP
768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWODK:RshfSWHHNvoLqNwDDGw02eQmh0HjWOG
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2472 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe File created C:\Windows\SysWOW64\¢«.exe 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe File created C:\Windows\system\rundll32.exe 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718590488" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718590488" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2472 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 2472 rundll32.exe 2472 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2912 wrote to memory of 2472 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 81 PID 2912 wrote to memory of 2472 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 81 PID 2912 wrote to memory of 2472 2912 8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe"C:\Users\Admin\AppData\Local\Temp\8c6334806134d6c961b23b973b665c61568b0cf3c82945050be246c21819a57c.exe"1⤵
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2912 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2472
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
81KB
MD53a51e8924e22c5e863442bfe99fb18b3
SHA179c4c5ec8ed9e30f69d885d0fa982440716e00f2
SHA256d682d0254369d017b100a15bb8a8871af2c164dd26b73b42a8a0a66da5fb1589
SHA512d1f16919d42ae4e44c2b002d821a2ca00db5b299d4865e20d7e00e01b20111fec6974e806a05f6b784588c7f0d25da5478d058762170f820745dd4d29b39cf2e
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Filesize
80KB
MD53c8e05a95e5e7bdfe7ab2b90e29c2807
SHA13b4c44df10d5f17f1f2f5a2a35927dbfb09e64e3
SHA25666c31e9162cf7a07501ffa9c3ade644f0633e4dfa8f3251e43995f89323afb16
SHA51217460eb5625399685e41ab18b083805038c8392a285db7e792d9bbf903d66ad1f4a7c596039a4c8c5c007d833c6abd241f944f34c6830a6e86c251edf38f4d17