Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
17/05/2024, 15:20
Static task
static1
Behavioral task
behavioral1
Sample
04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Resource
win10v2004-20240508-en
General
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Target
04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
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Size
73KB
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MD5
f47f0376c09e8314863502f8383f729c
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SHA1
4346e4d33b5cb4bd0ab5044c3f709f56da7ef812
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SHA256
04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9
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SHA512
78946a3b813e73ed2f82d65264f843fb9297453e238023126f589cb5da8e83b6d8c3f2e064ea2186da0be064ea9f14e5c3f2d8cab08d139325303b4139e899d4
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SSDEEP
768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 3460 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.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\exefile\shell\open\command 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe File created C:\Windows\SysWOW64\¢«.exe 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\system\rundll32.exe 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe File opened for modification C:\Windows\system\rundll32.exe 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe -
Modifies registry class 15 IoCs
description ioc Process 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" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715959263" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715959263" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3460 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 3460 rundll32.exe 3460 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2364 wrote to memory of 3460 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 87 PID 2364 wrote to memory of 3460 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 87 PID 2364 wrote to memory of 3460 2364 04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe"C:\Users\Admin\AppData\Local\Temp\04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.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:2364 -
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:3460
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
74KB
MD5d6ff262d353d0d92848f492c24c464be
SHA17b2366573db49504d3257ba98a842925c6d79c9e
SHA256e1d2b1cb7c16dcbc22466f7ba9e0e89713142f6c637c57d18bfe5317fff45195
SHA5125c41a77944011b7cac84626cf745d61d1d24fa78182acfb3ee34e2de566381a16c0daf5b9671087ca334535de9a7773d38dede6827d75199b6f7d2e69da1423f
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Filesize
84KB
MD5147384950ecee165bb8ab8b78b4bcf41
SHA123454fa2bfb841f2f5a772c8cef51416ce9130f5
SHA25615ba697eeec0e563981c63c171a0df08d080981deb890d33fd5314800c6a131c
SHA5122be5839e7543cc658858627e4505e5993db482abbbabaa010677ee9d9ec1a00ae0fd7610466bd8d03aff91f52b410ba75a9f237ebce6018dd42ca209a3cd583e