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Analysis
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max time kernel
251s -
max time network
259s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2023, 13:09
Static task
static1
Behavioral task
behavioral1
Sample
4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe
Resource
win10v2004-20230915-en
General
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Target
4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe
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Size
76KB
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MD5
2dafcf77f17526c90c0985e3ed8a5889
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SHA1
29d4eed99d3fc2099930adea21c49ef58c07647b
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SHA256
4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de
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SHA512
f1f8d162bdceab1356b93bdbac9a164a98380df68565b71988c026899d20d8165c547dec9d08f38cdd609e8e9b3c3ef8922a266062c05daa21c919c38bd74a38
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOCxr:GhfxHNIreQm+Hilxr
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4064 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.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 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe File created C:\Windows\SysWOW64\¢«.exe 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe File created C:\Windows\system\rundll32.exe 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697071604" 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.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 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697071604" 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 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 4064 rundll32.exe 4064 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5048 wrote to memory of 4064 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 88 PID 5048 wrote to memory of 4064 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 88 PID 5048 wrote to memory of 4064 5048 4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.exe"C:\Users\Admin\AppData\Local\Temp\4eb2d4d8c4ff8b10906502e1453fb7e28a2eb5cc68cc81cc7923d93b8f9793de.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:5048 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4064
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
74KB
MD507a061cbc931805a1df041541f323495
SHA17ea37cce37549632db328a26e461817f67d7f535
SHA256d5e8e3f9c70832ee3d8fe84f3fb23f2764f37179f76e7d32a6bf727d94dcf360
SHA5123372c4ece90989eaaf9073dd9b38b8841bf1b774a305eb097c7979ff1accdcf1dd7683ddb11a948a894fdbe7b9c610d5c66cdd7f811f7eea69ed04d287b28be8
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Filesize
83KB
MD51180655c3a169e9195fc5c641d78b795
SHA1c7cc32b271868398f72d85ff02a83431f001333c
SHA256b41b611729565d272edb4c7d12fa911f8e5c01a9931d0ed9c668b58e96dd3981
SHA5123494679687ec597d83f35a0256af9833b8749e2c053864b6b48596c3bde6d7418d9c1294ef72617bf513f021e359b3a2550225c690d929f99f3c0569924af620
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Filesize
83KB
MD51180655c3a169e9195fc5c641d78b795
SHA1c7cc32b271868398f72d85ff02a83431f001333c
SHA256b41b611729565d272edb4c7d12fa911f8e5c01a9931d0ed9c668b58e96dd3981
SHA5123494679687ec597d83f35a0256af9833b8749e2c053864b6b48596c3bde6d7418d9c1294ef72617bf513f021e359b3a2550225c690d929f99f3c0569924af620