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General
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Target
Bootstrapper.exe
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Size
796KB
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Sample
240909-kxtybazglp
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MD5
5f16b82a8b62d4cc9d6ce02f44e34109
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SHA1
be96254773cba2c6f0b88e51319802b1c6394beb
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SHA256
1621a516abb8ecf9459c9dec83f7fb9beb07af1f79511dfe0b3c622297ffa940
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SHA512
956d983c7f076b176bfd1952e691e2d363c332dba317645ce991c9bb2f4ddd89771f0d035cbb70ab420b9dd906b3a6d0aecc6c8243ba6a4ac70979cebb00986b
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SSDEEP
3072:nTaFZMwaCyYwC+M2FEv80IZOA/CyYwC+M2FEv80IZOAu80IZOA4:lhY7X2Kvh4hY7X2Kvhlh
Static task
static1
Malware Config
Targets
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Target
Bootstrapper.exe
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Size
796KB
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MD5
5f16b82a8b62d4cc9d6ce02f44e34109
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SHA1
be96254773cba2c6f0b88e51319802b1c6394beb
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SHA256
1621a516abb8ecf9459c9dec83f7fb9beb07af1f79511dfe0b3c622297ffa940
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SHA512
956d983c7f076b176bfd1952e691e2d363c332dba317645ce991c9bb2f4ddd89771f0d035cbb70ab420b9dd906b3a6d0aecc6c8243ba6a4ac70979cebb00986b
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SSDEEP
3072:nTaFZMwaCyYwC+M2FEv80IZOA/CyYwC+M2FEv80IZOAu80IZOA4:lhY7X2Kvh4hY7X2Kvhlh
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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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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Loads dropped DLL
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Blocklisted process makes network request
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Enumerates processes with tasklist
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Discovery
Network Share Discovery
1Peripheral Device Discovery
1Process Discovery
1Query Registry
5Remote System Discovery
1System Information Discovery
6System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1Virtualization/Sandbox Evasion
1