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Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
25/04/2024, 16:21
Static task
static1
Behavioral task
behavioral1
Sample
54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe
Resource
win10v2004-20240412-en
General
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Target
54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe
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Size
78KB
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MD5
c17765909ddf23fdab21426853b8e3fe
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SHA1
f50c41bdc3d6c67ab94b7a9dbb4bf77ed5bcd32d
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SHA256
54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91
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SHA512
321845a1c5f958c1152664cdfee21ff5abca85bb66d6728476756f001b9e54b062e89fa0533da69c45c44561858709dc298403910ac0012472c255c08856d31f
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SSDEEP
1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOnzuh0i:GhfxHNIreQm+Hiizuh0i
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2252 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 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.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 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe File created C:\Windows\SysWOW64\¢«.exe 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe File created C:\Windows\system\rundll32.exe 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\MSipv 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1714062078" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv 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\" %*" 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1714062078" 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\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe -
Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2252 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 2252 rundll32.exe 2252 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1412 wrote to memory of 2252 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 90 PID 1412 wrote to memory of 2252 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 90 PID 1412 wrote to memory of 2252 1412 54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.exe"C:\Users\Admin\AppData\Local\Temp\54a6d57a5fdd8932949f593ee06557556949c7853ff340dbe9c91243f2607e91.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:1412 -
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:2252
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
78KB
MD541dbb2390062cb6973ebcf805c47479a
SHA1f61d9e286047e743b46e7ce27f5f52d6acf67c92
SHA256e1a930ea93f3b0674f869e24f5812da3281934e1b95a93a5304a8741ff285a2b
SHA512ece1657ac21b4b65c538a4393899024c7d6c9a01c945f5f4e8fcef9d42b0ea3b5be9415533649860580299e1d29300ffe9bca161bebc9071df7deaee717e4c6c
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Filesize
80KB
MD5f93f34dbb2aa0ee96f99357e7bc46748
SHA18c87346db4a401ee3446a2606d8a58152e76eb25
SHA25666295c85a4115f81a14f163c1b2e430394640f108433c07ed5626eaa7c3b714b
SHA512d13aa79fd8ee63076931bed9b2f2eda23035885f5ed39f43e79903b5843a7364e7b4e403d5cdbaf7f6c3a43f19c119d2378182cbd5db23aa4c2b9c6568a99c79