Managed XDR

vtdl_1731852077_bczdz78b — malware analysis report

File info

Filename
vtdl_1731852077_bczdz78b
File type
Microsoft Excel 2007+
File size
40.8 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
8fae0fe7d68a8e9c978d6c2d6f0dacb7bcbe10ac
SHA256
645b2332de464e5b1e2fca593705f125302d4d5502177313c24d38957f9d8afb
MD5
f5f9a0afc719213e7c3f2fbe8cbb9d19

Signatures

Execution

T1203 office_runs_dll: Suspicious document behaviour (tries to execute dll file in hidden window)
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1559 suspicious_process: Spawns a suspicious process
T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macroses (total: 3)
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_xlm_macrosheet: Document contains XLM macro sheet
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

Defense Evasion

T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macroses (total: 3)
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_xlm_macrosheet: Document contains XLM macro sheet
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents

Discovery

T1083 checks_recent_files: Attempt to check recently opened files through registry
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents

Command and Control

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

Other

creates_exe: Creates executable files in the file system
creates_suspended_process: Creates suspended process
test_check_service: Starts services
yara_rules: Static rules