Analysis
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max time kernel
93s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
07/11/2024, 15:00
Behavioral task
behavioral1
Sample
24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Resource
win10v2004-20241007-en
General
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Target
24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
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Size
1.2MB
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MD5
68b6e1da249421fedf2c6cf9d01a6720
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SHA1
0a29e2994608555503b77b424ca828e00fc3e117
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SHA256
24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57
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SHA512
1c47bd186c111c58bc5221e6124d4eef1e706c1ceb930ae7777652d6980a3a442e6f6a71ebe23a2c371c89467bfacb16859fd86cb0ec40d2d769f61672e9a584
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SSDEEP
24576:v6Zv2ivhBVnFys7xP86Lh7uhmh8VZ7i/+XAmvYSFdbRPIbgRrhQKNzkM/rCher5a:vE2ivhQs7dLNuhmuVZ7iHmv5FJRIq6Gs
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\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983} 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msbyc32.exe" 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.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\" %*" 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe Set value (str) \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\vcl32.exe 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe File created C:\Windows\SysWOW64\msbyc32.exe 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe File opened for modification C:\Windows\SysWOW64\msbyc32.exe 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe File created C:\Windows\SysWOW64\concp32.exe 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe File opened for modification C:\Windows\SysWOW64\concp32.exe 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe -
resource yara_rule behavioral2/memory/1804-0-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral2/files/0x000a000000023b6e-5.dat upx behavioral2/memory/1804-7-0x0000000000400000-0x0000000000439000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 3700 1804 WerFault.exe 82 -
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 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983} 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 4f34f59ebc15d27431dbdd50dd02637a 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1804 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe"C:\Users\Admin\AppData\Local\Temp\24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.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:1804 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1804 -s 7002⤵
- Program crash
PID:3700
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1804 -ip 18041⤵PID:1120
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
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Downloads
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Filesize
1.2MB
MD5ceb7740a33c31e25a78a6f809f7bdbc9
SHA1694ba3138c789d04e14f8acd8d5dc3e443382523
SHA25625d6b879e63f3f067363eacc67388b245d186c6e5f665f891972faa84a03d85f
SHA512bcf0b6768cfb5c37972e92bd3f30c3a6823b0d35161207d93788c6f40f5894d5e75bde77b73b94322779f58e3c3f17b3aafb66c9a27fc5970c2de9d6fd367749