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
12/11/2024, 12:06
Behavioral task
behavioral1
Sample
f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe
Resource
win10v2004-20241007-en
General
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Target
f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe
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Size
944KB
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MD5
32eea9cb52ac61c5a73d45baea3a8c24
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SHA1
5cd2600b24e0eaa94e225f5f3f571a1842a99381
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SHA256
f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd
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SHA512
cb895ad909a37197daa0a3a8447de3d5278270d3f690b24c15137269a20409d67fdd106b29e7b591e4ec3c934be262e8f4a4d8d014b44a5665960a38c2e26b9b
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SSDEEP
24576:v6Zv2ivhBVnFvh5Q44+iiEb0f2Q5tZz1MrVTPh14w:vE2ivhhUK9f9DpMD1T
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\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983} f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msmcg32.exe" f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msmcg32.exe" svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2712 svchost.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\" %*" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.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" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\vcl32.exe f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe File created C:\Windows\SysWOW64\msmcg32.exe f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe File opened for modification C:\Windows\SysWOW64\msmcg32.exe f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe File created C:\Windows\SysWOW64\concp32.exe f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe File opened for modification C:\Windows\SysWOW64\concp32.exe f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe -
resource yara_rule behavioral1/memory/2088-0-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral1/files/0x0008000000016307-5.dat upx behavioral1/files/0x0036000000015f81-14.dat upx behavioral1/memory/2088-15-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral1/memory/2712-16-0x0000000000400000-0x0000000000439000-memory.dmp upx -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\svchost.exe f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe File opened for modification C:\Windows\svchost.exe f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.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 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Modifies registry class 12 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 svchost.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4 svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 0c17b9b84cde86754a57f30215fce405 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983} f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f svchost.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4D764F43-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226 svchost.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2088 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2088 wrote to memory of 2712 2088 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe 30 PID 2088 wrote to memory of 2712 2088 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe 30 PID 2088 wrote to memory of 2712 2088 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe 30 PID 2088 wrote to memory of 2712 2088 f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.exe"C:\Users\Admin\AppData\Local\Temp\f2e7f09f6fe98a130e5b96531c327e419e273729f6aaa218b6918ed3e564c7fd.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:2088 -
C:\Windows\svchost.exeC:\Windows\svchost.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:2712
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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
948KB
MD5930f76c4f0f7dd6d6ee8b1dfe2a28065
SHA1b79de22e2dcf4bb807af9e9e74a031af38afd8b4
SHA25622f50e25a65ff0691a382f3c672cedee5951581ddb543a9db2f1293c08ca397c
SHA5125040e234d83c839571310ab40c0e73f907b50b8e24e18dd30d8dab857630d7f9031781a5af4b47e917578fec751e4a7f8051db13486a54c25d1527d7de87ad0b
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Filesize
949KB
MD5183f93116d1dcf3215472d7c1aa05964
SHA1625af0a067ed65e3c11c958ab70b75ca41d5d239
SHA2562dc431b47a23034024a7efb19e2a1b2d35c7fa30035c2355ea0ee75fc7843fa2
SHA512b4c5a75dab37957e33f1495fffb4baf422f6fb0e684c3a8a997371f3b1348385879104454d9664001c6d4a68c5f31515de5ca1cbc571342a83d9289575c0909b