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Analysis
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max time kernel
151s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
15/05/2024, 04:19
Static task
static1
Behavioral task
behavioral1
Sample
1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe
Resource
win10v2004-20240226-en
General
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Target
1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe
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Size
81KB
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MD5
ab24cd0704fae929b2c791b6dfeaa20e
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SHA1
fc496346ee63807fa8bde273ab8436615c02b2ad
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SHA256
1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400
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SHA512
74da09fef5345435dd6bfde5b9bffd64d143c4550fb15918a9007dee608d7fdbbe1ad349d495512ff1da585a374d9ccaadf63ed164d89dd27accb099a7859adf
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOP6GMJr:GhfxHNIreQm+Hik6GMJr
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4824 rundll32.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe File created C:\Windows\SysWOW64\¢«.exe 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe File created C:\Windows\system\rundll32.exe 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.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 Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715746808" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715746808" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4824 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 4824 rundll32.exe 4824 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4844 wrote to memory of 4824 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 91 PID 4844 wrote to memory of 4824 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 91 PID 4844 wrote to memory of 4824 4844 1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.exe"C:\Users\Admin\AppData\Local\Temp\1b49b943563df68409df41815e2a3377228eb6ae283e6024a5c05494b13af400.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:4844 -
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:4824
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵PID:3816
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
82KB
MD5055ad437c58bd7a6f0ed5cb5451306fe
SHA1e0b310727b530e48f09486c44da3d33c81b4690f
SHA2565915796a1d433a4dc407132c6c7800e33685067404708d3deffc0ffc6e0c943f
SHA5120df3599b052c9c98d9c75eabab27e67fd3c47210273460320405575c86f69a51ee6a29ed088fec4af63a9ca06486e2aaf62cd5e7c9727f7a20b19f714a063d1a
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Filesize
75KB
MD5efe083e3617fa0869928e8605a72c2e7
SHA19c59c89e66a90d07aa5c093eb21c264c51e27fef
SHA256768a85d857ce20297dc72113975881f3ea1ce093317e064e4fc62c9d5889a89f
SHA512021dcd03bcb0385de84090fc6a33ac1af76d0d7af04057dfc260e88edef2cfc2b77f9b576aa3a9b5d2c737f6c76e534c098930e2bf4e405c0cca9f8a80da65d9