Analysis
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max time kernel
149s -
max time network
52s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
27-04-2024 22:17
Static task
static1
Behavioral task
behavioral1
Sample
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe
Resource
win10v2004-20240419-en
General
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Target
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe
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Size
76KB
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MD5
6d2a38f47d2efe8b4e4383ff2c36ee74
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SHA1
356b5a63943cb9a26136fa5b8994007331366541
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SHA256
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da
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SHA512
b10e2df596ac405a5d3a3c07534f63c31fb9debbdf75c7533b9ea1fce47089c861faad535ea9fa6654b3245391c8341835e28306acee290ce0416619af6f71aa
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOqDr:GhfxHNIreQm+HiZDr
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
rundll32.exepid process 1156 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
Processes:
rundll32.exed28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exedescription ioc process 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 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe -
Drops file in System32 directory 4 IoCs
Processes:
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exedescription ioc process File opened for modification C:\Windows\SysWOW64\¢«.exe d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe File created C:\Windows\SysWOW64\¢«.exe d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe File created C:\Windows\SysWOW64\notepad¢¬.exe d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe -
Drops file in Windows directory 2 IoCs
Processes:
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exedescription ioc process File opened for modification C:\Windows\system\rundll32.exe d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe File created C:\Windows\system\rundll32.exe d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe -
Modifies registry class 15 IoCs
Processes:
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exerundll32.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1714256254" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.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\txtfile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1714256254" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
Processes:
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exepid process 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
rundll32.exepid process 1156 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exerundll32.exepid process 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe 1156 rundll32.exe 1156 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exedescription pid process target process PID 2996 wrote to memory of 1156 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe rundll32.exe PID 2996 wrote to memory of 1156 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe rundll32.exe PID 2996 wrote to memory of 1156 2996 d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.exe"C:\Users\Admin\AppData\Local\Temp\d28619a6e55e38280dbf4d63a1e869439cef6d2992f490b61d34c4bdbb66f4da.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
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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
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\notepad¢¬.exeFilesize
77KB
MD5a8e8ef162f755230203863e42826313c
SHA10321a20771cae640d70ae020a5131fcea90c92c2
SHA256df24886275ad573102a124796ea3f5702b6f4cc69b9c1ce77443d772aa40a455
SHA512f9d9cb54aac78be8c37c915bee1713685a031d8d1f53cc342c028003d272d568541213f187f997234fdacb8bb36b2614de58628c87929858f2ae2307a85cddfa
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C:\Windows\System\rundll32.exeFilesize
80KB
MD55901283511c0a4d9830781ff719af96f
SHA11927655ca2add22fe8b80013df5c606c6f7e81fd
SHA2567fc2e8381f572907b5b04da779f8a1744ae4f0ec24a8f276cb2659a81ad89fac
SHA5121f2050c2f4cbc9339c14f5ef0221b9141ddca048474ba2ce651ff5f57aebd2812a92b49dc18a2141a335fe2d97bdbe57b0c5f28ba0dd6535a4c7e19e897f17c4
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memory/1156-13-0x0000000000400000-0x0000000000415A00-memory.dmpFilesize
86KB
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memory/2996-0-0x0000000000400000-0x0000000000415A00-memory.dmpFilesize
86KB
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memory/2996-14-0x0000000000400000-0x0000000000415A00-memory.dmpFilesize
86KB