Managed XDR

vtdl_1731805220_dys19hh0 — malware analysis report

File info

Filename
vtdl_1731805220_dys19hh0
File type
Microsoft Excel 2007+
File size
38.8 KB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
54b5fc29aa3aa39a7c94f45d4a6025523e21a3e9
SHA256
2ee7c3f5bd8c3ab66bab3e98c7746fd3d3c74f64f8a117be530309cc6d834e50
MD5
8dfd59cca11630c6e44d2cc862f51e84

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: The document contains macroses (total: 2)

Privilege Escalation

T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1064 office_macros: The document contains macroses (total: 2)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1082 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1083 checks_recent_files: Attempt to check recently opened files through registry

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

Other

dns_without_resolve: DNS query without a response
create_rpc_bindings: Creates RPC connection
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
yara_rules: Static rules