Analysis
- max time kernel
149s - max time network
109s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
01/06/2024, 15:29
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe
Resource
win7-20240221-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe
- Size 81KB
- Sample240601-sw41wsfe8w
- SHA256 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de
- MD5 56f0f88bce9913d3ba9eb823f353cc0a
- SHA1 22eaa5e4108df801e2b85055dbf58ae979134cc3
- SHA512 c00e3f701b5e010cb0b0dbb409a151d38c4afa9702ad090226d6e045b6013450be842b737d8037c42bff787afd400cb04c117713833999ad1274c462dce3d52c
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOA3:RshfSWHHNvoLqNwDDGw02eQmh0HjWO
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1160 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.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 created C:\Windows\SysWOW64\¢«.exe 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe File created C:\Windows\system\rundll32.exe 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe - Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717255777" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717255777" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1160 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 1160 rundll32.exe 1160 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2528 wrote to memory of 1160 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 86 PID 2528 wrote to memory of 1160 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 86 PID 2528 wrote to memory of 1160 2528 955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.exe"C:\Users\Admin\AppData\Local\Temp\955e2306a0f20d3c4e0b402f579a0c574273f18681601a37e24bf3352b26f8de.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:2528 -
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:1160
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 82KB
- SHA256 75cdf974ead1bebbe995545a281c4bcae6f7bccd717b302cc95aa69c6dcbb500
- MD5 703b0ae318a17b957849ce131ca4d055
- SHA1 b4b1327ec4da142d963839589bd0f9cf1d7771ea
- SHA512 9e14e2dfcd265d10066293f2f8e86e72dd39f8ede05f31bed34d8755c243fafed06f54262add147590336d6152a367ac3e5cb0ea19471ccf84e33e060d25d305
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOhzmX:GhfxHNIreQm+Hi6zmX
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 80KB
- SHA256 c16f665fa73bd7fd8652676f944bb4d39a912c748fee5312c3caa247f7b45efb
- MD5 38564c6cb057b10b2468b2f4ae5d7af3
- SHA1 f9fae15390389b1af07324cace0d403811d56ebd
- SHA512 120ebecb30421c8b187f4a7e615705e4fe3f9ab2f9c48b83fb368bf36f1eb07fc9eb1ac99453071146f38cd9d7082051a6b616422c14338331166c47c2a9096c
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOp3HQiE:GhfxHNIreQm+Hia3HQiE
- MD5 SHA1 SHA512 SSDEEP