Analysis
- max time kernel
149s - max time network
93s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system - submitted
09/06/2024, 07:29
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe
Resource
win7-20240508-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe
Resource
win10v2004-20240426-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe
- Size 80KB
- Sample240609-jbjpsagd23
- SHA256 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d
- MD5 8511b86e0788acd519a2c6b15a912f3c
- SHA1 4effa41c932e006b931a4046279477a4ab01d411
- SHA512 7663508d907871833dc1999bb280ed0c2995520c536660d1afc18503e5a412e5a1a592f0d6253e17cd7d5acf747c5698037b5003ead9eda13973a324ab941cc9
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO+vst:GhfxHNIreQm+Hilvst
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4108 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.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
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe File created C:\Windows\SysWOW64\¢«.exe fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe File created C:\Windows\SysWOW64\notepad¢¬.exe fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe File created C:\Windows\system\rundll32.exe fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe - Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717918181" 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\" %*" fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717918181" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4108 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 4108 rundll32.exe 4108 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5076 wrote to memory of 4108 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 85 PID 5076 wrote to memory of 4108 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 85 PID 5076 wrote to memory of 4108 5076 fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.exe"C:\Users\Admin\AppData\Local\Temp\fca8c302bbdc8a176a4ba91c57934fa7afd8a82b99ccfb5c16a72190fd99e93d.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:5076 -
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:4108
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 79KB
- SHA256 184ebb11e1f2d820f1b545a453ddc9c6f03959f89a3b22a0874bda7939fe0c60
- MD5 dfa0711cf2c1f9b9ebab2861542cd5a9
- SHA1 926ef1f23a1dc31e861bf0962aba5540f4d0eca3
- SHA512 a6be4dd4b2da116fd464a5a03e3e5e33d01d953e9ceaaaf0de628140f2eabb4fb3470505f0dd77defd8bdcdb1a9f0010e42087c6dbe23bbae4bd268c7fc58c7a
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOUG:RshfSWHHNvoLqNwDDGw02eQmh0HjWOx
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 78KB
- SHA256 e418196f6df8f96c3d9911b5d4c85ba85d76c22ff88b5f87c615c953ba20f37c
- MD5 99a33c703e495adb5a54261cdd7886ee
- SHA1 42d974e9d6d55b452e10792451c2765fe21cf716
- SHA512 4a2f04d8a0b54dedfb98f62b1f098f9b9e2aa74ba239e9107280c9d8791ed32214d49044fd39b55301ae0476e0828b06c2f3e948c094b314e09a354c40a5a9eb
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOjn/lUF:GhfxHNIreQm+Hiin/lUF
- MD5 SHA1 SHA512 SSDEEP