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Analysis
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max time kernel
150s -
max time network
104s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
17/05/2024, 20:24
Static task
static1
Behavioral task
behavioral1
Sample
b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
Resource
win10v2004-20240426-en
General
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Target
b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe
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Size
80KB
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MD5
3f85cd3eb373e841744a079d063e177f
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SHA1
8a74be7c0d0a0f8b46be2d9138094e921cf152b9
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SHA256
b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd
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SHA512
47fea0c033f05683e82751d738b46f736f98b3c176963e69073e7e0cbef3d64bd86f8c33bea5e76cb301c96d200a7a0b8c438a256833610d139dd06c53245797
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SSDEEP
768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOs:RshfSWHHNvoLqNwDDGw02eQmh0HjWOs
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 3548 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\" %*" b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.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 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\notepad¢¬.exe b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe File opened for modification C:\Windows\SysWOW64\¢«.exe b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe File created C:\Windows\SysWOW64\¢«.exe b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe File created C:\Windows\system\rundll32.exe b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715977471" 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" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715977471" 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 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3548 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 3548 rundll32.exe 3548 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1156 wrote to memory of 3548 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 85 PID 1156 wrote to memory of 3548 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 85 PID 1156 wrote to memory of 3548 1156 b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.exe"C:\Users\Admin\AppData\Local\Temp\b974627e356ef0e6f0efa45293ed97b5778ab584580767df812e8ee62477e2cd.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:1156 -
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:3548
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75KB
MD55c1249d8a2323a59e0ef2d02c1b83fd5
SHA10e1c82eb742140a3ec9f4b143238911805bc5764
SHA25691feb921abaa2c7ab4cf9a7d040a85c867752c7a3589cb57b4f599d744a1a0e9
SHA5123cd2cd111640481732a0fd2f212222d5afe4797a27ed1352b5b846d3b013d83164cbae13e0dcc9410ebbbc0a66fc361505bc0e930f0f5c1dcea7b053697a2e47
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Filesize
87KB
MD5106ad6a9cb9e04e1fe252939f260ffc9
SHA194d6edc6dacc57e4511488f788b1480242f6db6c
SHA256b465df80444c91212a2f5b12f435166ed6be007a2c31ff6ab3c2fcd2bd57cad7
SHA5123d42af544d126c157adf257860fabae26277b8c60a4658a455ac242f5ff5392cb56a41e6302f7d9d9ee559700467dc30c635f29d3835c032575e4a81821f20e6