Analysis
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max time kernel
149s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 02:32
Static task
static1
Behavioral task
behavioral1
Sample
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe
Resource
win10v2004-20240426-en
General
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Target
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe
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Size
82KB
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MD5
9ac9351959fdffa3b2d190a52b3a6af2
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SHA1
9c2128ca53785aaff685b133a8c5d6824020f6b2
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SHA256
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313
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SHA512
4d497295773e8277bce1d9b411c85547b49c3da25de5749ed4bbc422f774e152798ffc4c37f55eb2326f9ce35bdf3bc363cc4f0935ee1655f0014b9b73ad58ad
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO/bIHX5bn:GhfxHNIreQm+HicbIHX5bn
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
rundll32.exepid process 4252 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exerundll32.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.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
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exedescription ioc process File opened for modification C:\Windows\SysWOW64\¢«.exe 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe File created C:\Windows\SysWOW64\¢«.exe 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe -
Drops file in Windows directory 2 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exedescription ioc process File opened for modification C:\Windows\system\rundll32.exe 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe File created C:\Windows\system\rundll32.exe 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe -
Modifies registry class 15 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exerundll32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716517980" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716517980" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.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 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exepid process 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
rundll32.exepid process 4252 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exerundll32.exepid process 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 4252 rundll32.exe 4252 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exedescription pid process target process PID 4336 wrote to memory of 4252 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe PID 4336 wrote to memory of 4252 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe PID 4336 wrote to memory of 4252 4336 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe"C:\Users\Admin\AppData\Local\Temp\278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.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:4336 -
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:4252
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\notepad¢¬.exeFilesize
77KB
MD5495e7e1bd32dfd8286509864437f5b38
SHA1f2e612485d62f0295e649aad5375ea6dd05b98ed
SHA2567f64fc521808c574d6395eda8b228f6168f9bbd56c42aca2bc457696b1488c74
SHA51275d27b6c39b40726d996b57a68fa40c064893596372875d5af3cf70c0d6e3603b8251dd9ccd85d81d70abbfea014dcebc7a4fc11d68d110181a30f6fb3091cb5
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C:\Windows\System\rundll32.exeFilesize
74KB
MD5075c6c0e0c66c62934d98ceb528295ea
SHA1fb61bcd15aabaf151074d1302f79b12097308958
SHA256f8aa534b66cba7ec0c16d9178aac0d6921eadce4bbcca392d075470371994c9b
SHA51229f64271f98d6d212d3fd5c0886bef3ff0e0abdc0bd7af1fb12bbfa5a91c51125c1083810d990b0ee5a639bb22b38f370b4b7c66d13488056c7afa417f7d31db
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memory/4336-0-0x0000000000400000-0x0000000000415A00-memory.dmpFilesize
86KB
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memory/4336-13-0x0000000000400000-0x0000000000415A00-memory.dmpFilesize
86KB