Managed XDR

kld-1134489477.xlsb.bin — malware analysis report

File info

Filename
kld-1134489477.xlsb.bin
File type
Microsoft Excel 2007+
File size
57.7 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
d418c5db8ba3f969f84a1eb88cfc216f6b9ad4bb
SHA256
dbbeb72688730e5d4a91dbd009d2ad14450ec6bd131141642077519fff780436
MD5
330be1a87725ef8294a4c54cceece581

Signatures

Execution

T1559 suspicious_process: Spawns a suspicious process
T1203 office_runs_dll: Suspicious document behavior (tries to execute DLL file)
T1203 office_exploit_http: The document exhibits suspicious behavior (performs HTTP requests)
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

Privilege Escalation

T1055 injection_failed: The attempt to inject into a process has failed

Defense Evasion

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1055 injection_failed: The attempt to inject into a process has failed

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1057 has_wmi: Executes one or several WMI requests
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1083 checks_recent_files: Attempt to check recently opened files through registry

Command and Control

T1071.001 office_exploit_http: The document exhibits suspicious behavior (performs HTTP requests)
T1071.004 office_exploit_dns: The document exhibits suspicious behavior (performs DNS requests)
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

network_bind: Starts servers listening at None
xlsb_macrosheet: Contains xlsb macro sheet
dns_without_resolve: DNS query without a response
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
creates_suspended_process: Creates suspended process
message_box: Displays a message
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
dotnet_suspicious_cultureidentifier: Dotnet program contains invalid CultureIdentifier