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Analysis
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max time kernel
91s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 4 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\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983} 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mswai32.exe" 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983} spoolsv.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mswai32.exe" spoolsv.exe -
Executes dropped EXE 1 IoCs
pid Process 2696 spoolsv.exe -
Modifies system executable filetype association 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" spoolsv.exe -
Adds Run key to start application 2 TTPs 4 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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" spoolsv.exe Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" spoolsv.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\concp32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe 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\mswai32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe File opened for modification C:\Windows\SysWOW64\mswai32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe File created C:\Windows\SysWOW64\concp32.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe -
resource yara_rule behavioral1/memory/2196-0-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral1/files/0x00070000000186de-5.dat upx behavioral1/memory/2196-15-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral1/files/0x003c000000018654-14.dat upx behavioral1/memory/2696-16-0x0000000000400000-0x0000000000439000-memory.dmp upx -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\spoolsv.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe File created C:\Windows\spoolsv.exe 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolsv.exe -
Modifies registry class 12 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165" spoolsv.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 566425468e70b133c9500600f989cffe 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\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983} spoolsv.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 spoolsv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4 spoolsv.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983} 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f spoolsv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E38DA6F1-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226 spoolsv.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" spoolsv.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2196 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2196 wrote to memory of 2696 2196 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe 31 PID 2196 wrote to memory of 2696 2196 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe 31 PID 2196 wrote to memory of 2696 2196 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe 31 PID 2196 wrote to memory of 2696 2196 0f13a23d66d29cece0735366d0801a41ea02e2e54cd20f9a64200116fa196559N.exe 31
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
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\spoolsv.exeC:\Windows\spoolsv.exe2⤵
- Boot or Logon Autostart Execution: Active Setup
- Executes dropped EXE
- Modifies system executable filetype association
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:2696
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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
1.0MB
MD5750ebb1f0058953e5429534e0211f081
SHA1ad13c3f75df27e438c4a34ea487d9279b5cb51f4
SHA256faeec7c2a8ba97fc9da5994202c06d596fb2c31004d5701a07890a1b70c6697d
SHA51220c68c67dd085f999ff094c9c6cb54d1f94a832679626838916b1aadf3d96b8f7a82734bf94542d0201e6fe04a62042b78ead920611ff0f001156dc86d92261b
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Filesize
1.0MB
MD58aa29183db8734eba358f866c74188e5
SHA17eb9628a836e230e5f5c8abc0c1af78d16f072ba
SHA256ed638cc2658256cbedddb07c7dc6305f3eb530511227a4205ec43c7c6062d8f0
SHA512e2c4799c09c30137d95ba81474af1788f337ad99392b8ffcb1c6890d2ecac8070555d185d0429472d712096746a30109c6e05556566b5e7e427add1c7480d755