Managed XDR

vtdl_4jak5xun — malware analysis report

File info

Filename
vtdl_4jak5xun
File type
Microsoft Excel 2007+
File size
13.7 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
519b42ac448374659035ce97a4af11eb68461e28
SHA256
af8ae035d74211b249966f29bb2491a6d2d7c1804ac80c17053cc63c37d86819
MD5
c061b72e98d67722474878656a8617d6

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1059.001 suspicious_process: Spawns a suspicious process
T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

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

T1064 office_macros_suspicious: Document contains suspicious macro
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1064 office_macros: The document contains macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1518 locates_browser: Attempts to identify where browsers are installed
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
networkdyndns_checkip: Connects to a Dynamic DNS domain
dead_host: Connects to IP addresses that do not respond to requests
dead_host_suspicious: Connects to IP addresses with suspicious port that do not respond (possible Meterpreter)
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
suricata_alert: Malicious traffic detected