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Analysis
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max time kernel
164s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
11/10/2023, 17:31
Static task
static1
Behavioral task
behavioral1
Sample
6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe
Resource
win10v2004-20230915-en
General
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Target
6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe
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Size
77KB
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MD5
ec0fd03a2c2ea4bdd9d4a22958b62984
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SHA1
0110e76cbd3caf0fb4783947d82387a3ca592f98
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SHA256
6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c
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SHA512
ade2f134daa3d0079847fee7f1ccb4748f65e6d60e25dfb4977997d459acd11030e02413de05eed5fc89a69e955ab7aaf15d70025779e066f8d5fd3e5dad0b49
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOK3b:GhfxHNIreQm+Hir3b
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2560 rundll32.exe -
Loads dropped DLL 2 IoCs
pid Process 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.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 created C:\Windows\SysWOW64\¢«.exe 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe File created C:\Windows\system\rundll32.exe 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" 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\" %*" 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697100883" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697100883" 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 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2560 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 2560 rundll32.exe 2560 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2308 wrote to memory of 2560 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 29 PID 2308 wrote to memory of 2560 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 29 PID 2308 wrote to memory of 2560 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 29 PID 2308 wrote to memory of 2560 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 29 PID 2308 wrote to memory of 2560 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 29 PID 2308 wrote to memory of 2560 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 29 PID 2308 wrote to memory of 2560 2308 6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.exe"C:\Users\Admin\AppData\Local\Temp\6710637ca908c879df671a16402efea03b8631acc48b1424c2205c6afb77059c.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:2308 -
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:2560
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75KB
MD5bde1c5c3b8dfb0f31447c196a750fec9
SHA14035d962df5b1ec851d2968c3e8d10727c04378b
SHA2561b8f41cd8a0e31f5c79e632f3073ac5c5c09765b5a873e0a3b565f9e35d775bd
SHA512d44fc0ad50e211482ee8e42d70733da61eea9a4b924b10caead2a733d6800c77a7f6cc07dab15c6aa914f75e6a9c09033e64b5c69e841760bfea04fad30fda22
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Filesize
77KB
MD5ac1fb871475559dd97a55cb3b8b835d9
SHA195462c6ca703e44747e2cafa9bff62f64ba9d105
SHA25600406cec6a5e480e88101e8956d73dce009db10bda833dd7cc6d5dcd87d39cc5
SHA51250a2bf738e24fc96a333e0142ba96b974dd81089afca74ecb2c05012bf84534e10ced91a7c279e484c6b09b62adcbb9713a520e97509a1c811ac6fbd70ed17f7
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Filesize
77KB
MD5ac1fb871475559dd97a55cb3b8b835d9
SHA195462c6ca703e44747e2cafa9bff62f64ba9d105
SHA25600406cec6a5e480e88101e8956d73dce009db10bda833dd7cc6d5dcd87d39cc5
SHA51250a2bf738e24fc96a333e0142ba96b974dd81089afca74ecb2c05012bf84534e10ced91a7c279e484c6b09b62adcbb9713a520e97509a1c811ac6fbd70ed17f7
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Filesize
77KB
MD5ac1fb871475559dd97a55cb3b8b835d9
SHA195462c6ca703e44747e2cafa9bff62f64ba9d105
SHA25600406cec6a5e480e88101e8956d73dce009db10bda833dd7cc6d5dcd87d39cc5
SHA51250a2bf738e24fc96a333e0142ba96b974dd81089afca74ecb2c05012bf84534e10ced91a7c279e484c6b09b62adcbb9713a520e97509a1c811ac6fbd70ed17f7
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Filesize
77KB
MD5ac1fb871475559dd97a55cb3b8b835d9
SHA195462c6ca703e44747e2cafa9bff62f64ba9d105
SHA25600406cec6a5e480e88101e8956d73dce009db10bda833dd7cc6d5dcd87d39cc5
SHA51250a2bf738e24fc96a333e0142ba96b974dd81089afca74ecb2c05012bf84534e10ced91a7c279e484c6b09b62adcbb9713a520e97509a1c811ac6fbd70ed17f7