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Analysis
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max time kernel
144s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
20/10/2022, 21:40
Static task
static1
Behavioral task
behavioral1
Sample
a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
Resource
win10v2004-20220812-en
General
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Target
a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe
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Size
270KB
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MD5
96e9f63203c94e033ba8d9dbdccdf755
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SHA1
14da76aa8bf9da771cb767534bf9ceecf65ec244
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SHA256
a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39
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SHA512
6d70a9fae8ae3e79d89ade69491e36bde1c22a679918fa45ec7031badd713ae8b9408a88e0e88f157104cba367f4de26ef06e4be13b6b5b17464fb1f78162359
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SSDEEP
6144:MRAhhJxX7bNIAROzTuaPUD8XRuf0b4mt/HLIhTWRlb3nZbgI+:UsAAPaPUD18t/HkSlblY
Malware Config
Signatures
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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\" %*" a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" spoolsv.exe -
Executes dropped EXE 1 IoCs
pid Process 1268 spoolsv.exe -
Modifies Installed Components in the registry 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983} a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxsp32.exe" a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983} spoolsv.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msxsp32.exe" spoolsv.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" spoolsv.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" spoolsv.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\vcl32.exe a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe File created C:\Windows\SysWOW64\msxsp32.exe a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe File opened for modification C:\Windows\SysWOW64\msxsp32.exe a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe File created C:\Windows\SysWOW64\concp32.exe a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe File opened for modification C:\Windows\SysWOW64\concp32.exe a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\spoolsv.exe a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe File opened for modification C:\Windows\spoolsv.exe a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe -
Modifies registry class 12 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 spoolsv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f spoolsv.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165" spoolsv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226 spoolsv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4 spoolsv.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983} a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3 a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983}\ax = f2ad6d617adf743b39571718a0648c55 a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8A22F655-8B9A-11D5-EBA1-F78EEEEEE983} 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 1368 a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1368 wrote to memory of 1268 1368 a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe 27 PID 1368 wrote to memory of 1268 1368 a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe 27 PID 1368 wrote to memory of 1268 1368 a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe 27 PID 1368 wrote to memory of 1268 1368 a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe"C:\Users\Admin\AppData\Local\Temp\a4da5df3fadd84e9a34ed104350110140d203d712edbbe04545b91e46b8e6d39.exe"1⤵
- Modifies system executable filetype association
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1368 -
C:\Windows\spoolsv.exeC:\Windows\spoolsv.exe2⤵
- Modifies system executable filetype association
- Executes dropped EXE
- Modifies Installed Components in the registry
- Adds Run key to start application
- Modifies registry class
PID:1268
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
275KB
MD57a63a7580c34ae592c261adef0d1f13a
SHA14c167befe9906797d02d15a979059f09368e7b52
SHA25694180e3f579faa2ba2eb88cbb3513ee957faa67d215ec625816b0bc3ea8a700a
SHA51291ad3648c9cab3d820b99f14e7d0e9459250b5ae2b3eb191848f88f7f28803005f3426d3233dd6ad69784e940612ec87a556bf115bcf534d3012f96a45a82ad9