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General
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Target
NEAS.86e5bf5f49d8fcf02addad1089af2040_JC.exe
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Size
1.7MB
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Sample
231101-nrat2aff9s
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MD5
86e5bf5f49d8fcf02addad1089af2040
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SHA1
cceb213a8dd473716244cc093a1d5615d6e279b1
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SHA256
f444a97206d7d0a931249df0989486856010c2aa3db1d44382925b3afd323da0
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SHA512
8f9fc9636c956b279fc323fa494f3e91e54e981ff5aeb690dd7a885ebae70866369a70ed6bdf37ebc1e057a9f43caf656be6b97e78eed3b7f78421e3b0090c47
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SSDEEP
49152:DpPNiqTVoiCVsqSMRrQFTAm4o24TduMpwNRn:NNiqpcsFCrQFEm40vpwj
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.86e5bf5f49d8fcf02addad1089af2040_JC.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
NEAS.86e5bf5f49d8fcf02addad1089af2040_JC.exe
Resource
win10v2004-20231023-en
Malware Config
Targets
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Target
NEAS.86e5bf5f49d8fcf02addad1089af2040_JC.exe
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Size
1.7MB
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MD5
86e5bf5f49d8fcf02addad1089af2040
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SHA1
cceb213a8dd473716244cc093a1d5615d6e279b1
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SHA256
f444a97206d7d0a931249df0989486856010c2aa3db1d44382925b3afd323da0
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SHA512
8f9fc9636c956b279fc323fa494f3e91e54e981ff5aeb690dd7a885ebae70866369a70ed6bdf37ebc1e057a9f43caf656be6b97e78eed3b7f78421e3b0090c47
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SSDEEP
49152:DpPNiqTVoiCVsqSMRrQFTAm4o24TduMpwNRn:NNiqpcsFCrQFEm40vpwj
Score10/10-
Modifies visiblity of hidden/system files in Explorer
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Executes dropped EXE
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Adds Run key to start application
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Virtualization/Sandbox Evasion
2