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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
09/10/2024, 16:21
Behavioral task
behavioral1
Sample
0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe
Resource
win10v2004-20241007-en
General
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Target
0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe
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Size
1.0MB
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MD5
6f9278ef68dc128dbfb5b26a2175ec80
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SHA1
ab9f27efb21d8c374f029b731a7d72fc2427130d
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SHA256
0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559
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SHA512
aa3ae4019170a7aeff8b8371386565b4cbb0dba870b0a6cff8ce2cc0e9ccde19c24283fec0459994ec0c898613f6dc9cf66e1f6c7c8917480593072480cd7935
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SSDEEP
24576:v6Zv2ivhBVnFys7xP86LkRCwPYfuukvDtiflQBU3jYY5QH:vE2ivhQs7dLkRumsUU3eH
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\{91E0483A-8B9A-11D5-EBA1-F78EEEEEE983} 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{91E0483A-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mskmq32.exe" 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.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\" %*" 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.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" 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\vcl32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe File created C:\Windows\SysWOW64\mskmq32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe File opened for modification C:\Windows\SysWOW64\mskmq32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe File created C:\Windows\SysWOW64\concp32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe File opened for modification C:\Windows\SysWOW64\concp32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe -
resource yara_rule behavioral2/memory/2244-0-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral2/files/0x000b000000023b79-5.dat upx behavioral2/memory/2244-7-0x0000000000400000-0x0000000000439000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 3976 2244 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 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91E0483A-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 7153b12e03c46e2b270e0ae6fa5f56bf 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91E0483A-8B9A-11D5-EBA1-F78EEEEEE983} 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91E0483A-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{91E0483A-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2244 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe"C:\Users\Admin\AppData\Local\Temp\0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.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:2244 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 7082⤵
- Program crash
PID:3976
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2244 -ip 22441⤵PID:4040
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
1.1MB
MD58f7f26733f8887dd23d40f4371360a25
SHA13eaaef844041bdf63a7fbb61e5ae6599cf36c1a3
SHA256b27637b6f8eab830aa24b062a7df9ae27e4befaf1fe6071265e58734157d508b
SHA51296a75117196e2f0c292a7ecad8941331e3e68407d8e4172a21417f1c319534751e35a54e32d76740d1cb89e3415604f21c942bc2adfd092d9ae3cd0228f135b3