Analysis
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max time kernel
149s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
14-08-2024 06:27
Static task
static1
Behavioral task
behavioral1
Sample
f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe
Resource
win10v2004-20240802-en
General
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Target
f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe
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Size
82KB
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MD5
da4501cc9a922dec1e219a8eb0557cb8
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SHA1
024c4b91c0496602db1fe199fd606e3533bd5987
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SHA256
f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d
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SHA512
6899b6e5e1cf84629c60e5bbd2c581e1f820f21e637f726e5e58c5794f991a7b88e9d42088125ab8e7cb9c81e3e82978d869c46b9c934ceaa78431d9d09c09f9
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOCabCaEXIJHlst+V:GhfxHNIreQm+HipabCaE4z2C
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2260 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.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 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe File created C:\Windows\SysWOW64\notepad¢¬.exe f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe File opened for modification C:\Windows\SysWOW64\¢«.exe f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe File created C:\Windows\system\rundll32.exe f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Modifies registry class 15 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1723616872" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1723616872" 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\" %*" f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\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 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2260 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 2260 rundll32.exe 2260 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 836 wrote to memory of 2260 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 87 PID 836 wrote to memory of 2260 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 87 PID 836 wrote to memory of 2260 836 f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe"C:\Users\Admin\AppData\Local\Temp\f46596ff3b3e6b8a7ba02f47cfe913c855bc9c001a247aabf451e34fadfb348d.exe"1⤵
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:836 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2260
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
73KB
MD5fddd35f9a37da2ac7371fb29770236fc
SHA189f0e608cf9219d3602d358b0053d83d07c6f576
SHA25620ac85198a560b583c8d4ddb289930788300d9488ec4e75508eb7467fddd669d
SHA51249be9dc4190c6f0a952665893ae21c72a4262eb6ca6dedcba271c6c54d436d6daf87b1ada672385bec5f331c4faa0f62fe252ce27663ff7b80cd87b0a2ca0f61
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Filesize
78KB
MD51d1514871b39d2d064e64cfedafbdf31
SHA13ce7a685523020ceb2e6ffbbc44e92a21ea5485a
SHA2560c9907cde62e13bbca6a8d761f1044edd11071275fa0ea440801675f432404be
SHA5124136b97fc3c7a36d46c52e6ebeefd18c738d41f5fc5f997a8ec469ac1ef54a15ab0bd4ca26a6881f52e4be8bce0686f40fdaae0be9a64294632ac6f22381d13e