Analysis
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max time kernel
149s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-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 2312 rundll32.exe -
Loads dropped DLL 2 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exepid process 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.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 Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 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.exe %1" 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 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 Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716517979" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716517979" 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\MSipv 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exepid process 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
rundll32.exepid process 2312 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exerundll32.exepid process 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe 2312 rundll32.exe 2312 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exedescription pid process target process PID 2036 wrote to memory of 2312 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe PID 2036 wrote to memory of 2312 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe PID 2036 wrote to memory of 2312 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe PID 2036 wrote to memory of 2312 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe PID 2036 wrote to memory of 2312 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe PID 2036 wrote to memory of 2312 2036 278a04fd57c292594a16b7700b1b5bb4cb72fe9f076950bdb4be02324c1d2313.exe rundll32.exe PID 2036 wrote to memory of 2312 2036 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⤵
- 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:2036 -
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:2312
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\notepad¢¬.exeFilesize
75KB
MD54d085794a83b7a3ce3041034d194c3e0
SHA1a7164286ffbb98b951036da9ba79162be131a7bb
SHA256bda6fb1492b9e740e55ae74c2b2172bc5b15d81d9077c556cf894fbfaaa6b1cf
SHA5127cb82e4845acff66db7fece7c4e41fa355e25323ad985e7aef2fd3ef80d3a81deb20e7622ff40d4fddac22fbdcbb55d98eec025bfaadab85080142370d4dd558
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\Windows\system\rundll32.exeFilesize
73KB
MD54ed12e26b129b30b7580f12f397723ca
SHA125de021d95cb944ba9261545cd2e9fa9c8c26265
SHA2566253bf5c2e1639e55ce00869d838738df47f39791a0d62a583e9ba6556937086
SHA512b83b6059b908ec58ad2103fe2473c5c0669eabcdb82f4442c8aab85a5ff8547f675007d22b49ecd0787a45c8a4ded7a1f7e9544e5c8e8be18770eb5ad368b0cd
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memory/2036-0-0x0000000000400000-0x0000000000415A00-memory.dmpFilesize
86KB
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memory/2036-17-0x00000000003E0000-0x00000000003F6000-memory.dmpFilesize
88KB
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memory/2036-16-0x00000000003E0000-0x00000000003F6000-memory.dmpFilesize
88KB
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memory/2036-22-0x00000000003E0000-0x00000000003E2000-memory.dmpFilesize
8KB
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memory/2036-21-0x0000000000400000-0x0000000000415A00-memory.dmpFilesize
86KB
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memory/2312-20-0x0000000000400000-0x0000000000415A00-memory.dmpFilesize
86KB