Managed XDR

vtdl_1748602913_7rfe5pe3 (AveMaria) — malware analysis report

File info

Filename
vtdl_1748602913_7rfe5pe3
File type
Microsoft Excel 2007+
File size
1.5 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
02337234bf07e3bab392bbb744381bfd56d21bce
SHA256
a7b63e0b637662aec68b42a244099b5cbf71de0510afba66714a68cd401e6053
MD5
7646ce93950c3588f2c78c5a6f729a37

Malwares

  • AveMaria

Signatures

Execution

T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1059 autoit: AutoIt script execution detected

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1055.012 injection_runpe: Injects code into another process
T1055 sets_debug_registers: Sets debug registers for a thread in a different process
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

T1055.012 injection_runpe: Injects code into another process
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1055 sets_debug_registers: Sets debug registers for a thread in a different process
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity

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
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

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
T1102.003 cloud_amazonaws: Connects to cloud services of Amazon AWS (potentially for malicious payload delivery)

Other

yara_rules: Static rules
executes_dropped_exe: Executes dropped exe files
ce_info: AveMaria Configuration Data found
networkdyndns_checkip: Connects to a Dynamic DNS domain
creates_exe: Creates executable files in the file system
suricata_alert: Malicious traffic detected
suspicious_process_network: Unusual process network activity detected
dead_host: Connects to IP addresses that do not respond to requests
suspicious_process: Spawns a suspicious process
unexpected_exception: Unexpected exception
creates_suspended_process: Creates suspended process
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

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