Managed XDR

vtdl_1789890978_nzzrexe6 — malware analysis report

File info

Filename
vtdl_1789890978_nzzrexe6
File type
Microsoft Excel 2007+
File size
40.8 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
79788046cc66e25506149737dc6b990036dcd2f2
SHA256
c3412d1e20ef2e4343e5d46ace1eb5285a061dc412ccd2d4c3c759a685b9e673
MD5
f5f34bb09447395745679f2041eccc24

Signatures

Execution

T1203 office_runs_dll: Suspicious document behavior (tries to execute DLL file in hidden window)
T1203 office_exploit_http: The document exhibits suspicious behavior (performs HTTP requests)
T1559 suspicious_process: Spawns a suspicious process
T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros: The document contains macroses (total: 2)
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

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1064 office_macros: The document contains macroses (total: 2)
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

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
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 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

creates_exe: Creates executable files in the file system
network_bind: Starts servers listening at None
creates_suspended_process: Creates suspended process
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services