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Analysis
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max time kernel
149s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
21/04/2024, 02:18
Static task
static1
Behavioral task
behavioral1
Sample
a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe
Resource
win10v2004-20240412-en
General
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Target
a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe
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Size
85KB
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MD5
e33bfb874d24658a2ca75d0c5d87da8a
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SHA1
6ffc59402075e51d832fd9b7e18e616cb39fcc4b
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SHA256
a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e
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SHA512
ead166cdb581d2fe26642d73bfd49718d435e1b13c83eebe9ad13bd1d426cc541d6194f7684ad60edd24be7aebefec385e4999c400c68bed849b9a99a8507379
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOmoiqWYntz8:GhfxHNIreQm+HiloiqWYntz8
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2216 rundll32.exe -
Loads dropped DLL 2 IoCs
pid Process 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description 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 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\¢«.exe a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe File created C:\Windows\SysWOW64\notepad¢¬.exe a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe File opened for modification C:\Windows\SysWOW64\¢«.exe a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe File created C:\Windows\system\rundll32.exe a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1713665904" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1713665904" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" 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\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2216 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 2216 rundll32.exe 2216 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2696 wrote to memory of 2216 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 28 PID 2696 wrote to memory of 2216 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 28 PID 2696 wrote to memory of 2216 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 28 PID 2696 wrote to memory of 2216 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 28 PID 2696 wrote to memory of 2216 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 28 PID 2696 wrote to memory of 2216 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 28 PID 2696 wrote to memory of 2216 2696 a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe"C:\Users\Admin\AppData\Local\Temp\a4a7522d6a23d52ff68b163c9fa631feedf33b36c412defb577a587fa4fd393e.exe"1⤵
- Loads dropped DLL
- 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:2696 -
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:2216
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
80KB
MD514f51023868912ae254970dd1b55bbdb
SHA1f0ccd7b9c5286ba12a668fb526e81fe168a468e4
SHA256a72d87b2713f73092996f817c717e213ad94a6662249e04138dcdbc993debde2
SHA51270c71fcbc38c03e0bfa82b3f726c4caf728d9c390c5f3d2eb8044c4340284dd3e6e11af320048346dfc3c2cf3b492d5e44d4697ac46da58b7c7fc8e26fb5db3b
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Filesize
73KB
MD5102f589b525b8e129d3d942ba0ee5b29
SHA130bbac74401479d2cb903f33375a539d00076b54
SHA256380494b4863df8445d532a3b1631134116ce1bcd6d71cdc0b325823b66ade3bb
SHA512cdbb42eb553ad981dc9e98dce0199dd8ae474917a400447890ec703cfddb011053bf06c1bc21ddd4c0e031cf47da4d80b17f408bbf990caafc4bf7405ab4dd83