Managed XDR

vtdl_eaffogwc — malware analysis report

File info

Filename
vtdl_eaffogwc
File type
Microsoft Word 2007+
File size
120.9 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
4851ae266371a9b129f3957082eff17176890f23
SHA256
478e4257f868918974eff4b6d312e83ae03869c239f530fd2bf04553b80d7bd5
MD5
016e3484103c9e7e9106e2b2e89a459c

Signatures

Execution

T1203 office_write_exe: Office document dropped an executable file
T1203 office_runs_dll: Suspicious document behaviour (tries to execute dll file)
T1559 suspicious_process: Spawns a suspicious process
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros: The document contains macroses (total: 2)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1204 office_dotnet_load: Microsoft Office loads .NET assembly or DLL files (indicator of suspicious MS Office activity)
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1574.001 dll_hijacking: Indicators of DLL Hijacking vulnerability exploitation detected (creates a typical file)
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1548.002 uac_bypass_mocking_dir: UAC bypass with the use of mocking directory
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1574.001 dll_hijacking: Indicators of DLL Hijacking vulnerability exploitation detected (creates a typical file)
T1574 dropper_dll: Creates DLL, which is then loaded into the 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

T1548.002 uac_bypass_mocking_dir: UAC bypass with the use of mocking directory
T1027 office_macros_hex_strings: Lines in hex found in document macro
T1064 office_macros_strings: Feature lines found in document macro
T1574.001 dll_hijacking: Indicators of DLL Hijacking vulnerability exploitation detected (creates a typical file)
T1027.004 compiles_code: Compiles C# code
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1064 office_macros: The document contains macroses (total: 2)
T1064 office_macros_autoexec: The document contains an auto-start macro

Discovery

T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1082 fingerprint_to_file: Collects data about system and user and writes it to a text file
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)
T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.004 office_exploit_dns: The document exhibits suspicious behaviour (performs DNS requests)
T1071.001 network_http: Performs HTTP requests

Other

creates_exe: Creates executable files in the file system
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
checktokenmembership: Checks user token with CheckTokenMembership call
yara_rules: Static rules