Analysis
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max time kernel
93s -
max time network
116s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
20/08/2024, 08:33
Static task
static1
Behavioral task
behavioral1
Sample
b94c32cea01bef8272421188794340b0N.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
b94c32cea01bef8272421188794340b0N.exe
Resource
win10v2004-20240802-en
General
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Target
b94c32cea01bef8272421188794340b0N.exe
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Size
518KB
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MD5
b94c32cea01bef8272421188794340b0
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SHA1
1664084741f19aece5815d16f26e8c69784b43a5
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SHA256
60e0cdebe6b4b44c4e3f123f891b79551c6e21d84e98c3e80f274ffa789607a2
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SHA512
7f7046c3108b330ffd6b547b5ff116240ce8320246b5d185b90d2b4f5c8f280570a02582426474d3151f1dc3072490b5e8cd7e1c2d0994916d830e3366944d55
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SSDEEP
12288:ntKe6Zv23YemcR1bbLmRNO8zyrTDawU7yDKH+OSlQ0NY+JR8mG:76Zv2lmCrE+GwMyDKeOSPW+k
Malware Config
Signatures
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Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5DFEAA5B-8B9A-11D5-EBA1-F78EEEEEE983} b94c32cea01bef8272421188794340b0N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5DFEAA5B-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msebl32.exe" b94c32cea01bef8272421188794340b0N.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" b94c32cea01bef8272421188794340b0N.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" b94c32cea01bef8272421188794340b0N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" b94c32cea01bef8272421188794340b0N.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\concp32.exe b94c32cea01bef8272421188794340b0N.exe File opened for modification C:\Windows\SysWOW64\concp32.exe b94c32cea01bef8272421188794340b0N.exe File created C:\Windows\SysWOW64\vcl32.exe b94c32cea01bef8272421188794340b0N.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe b94c32cea01bef8272421188794340b0N.exe File created C:\Windows\SysWOW64\msebl32.exe b94c32cea01bef8272421188794340b0N.exe File opened for modification C:\Windows\SysWOW64\msebl32.exe b94c32cea01bef8272421188794340b0N.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2668 4028 WerFault.exe 84 -
System Location Discovery: System Language Discovery 1 TTPs 1 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 b94c32cea01bef8272421188794340b0N.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DFEAA5B-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3 b94c32cea01bef8272421188794340b0N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DFEAA5B-8B9A-11D5-EBA1-F78EEEEEE983}\ax = a2e6f99ce18549b15a04603ff90ad5d0 b94c32cea01bef8272421188794340b0N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" b94c32cea01bef8272421188794340b0N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DFEAA5B-8B9A-11D5-EBA1-F78EEEEEE983} b94c32cea01bef8272421188794340b0N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5DFEAA5B-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 b94c32cea01bef8272421188794340b0N.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4028 b94c32cea01bef8272421188794340b0N.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b94c32cea01bef8272421188794340b0N.exe"C:\Users\Admin\AppData\Local\Temp\b94c32cea01bef8272421188794340b0N.exe"1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:4028 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 7522⤵
- Program crash
PID:2668
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4028 -ip 40281⤵PID:3036
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Change Default File Association
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
523KB
MD5b99a9bbbdc8a08e2fd2d1d312889bdd7
SHA147c653e08b5cba88c5b6a38e1937cd2958b7c5ad
SHA256908138a7e5783681b8e05f0e12632a5daa558a4e8a9c5749e07d5bcf525b0b23
SHA51233c987b4450d79c7fada9a7f681c6de571cfee095926a8094568ae84b84035ca01fafeb5c3604f4e993b4cfc152b461cf5261fc5fef04cf5b84ac535255bfbbc