Managed XDR

vtdl_1731926825_ku_b7xf8 — malware analysis report

File info

Filename
vtdl_1731926825_ku_b7xf8
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, Code page: 1251, Author: 1, Template: Normal.dotm, Last Saved By: 1, Revision Number: 475, Name of Creating Application: Microsoft Office Word, Total Editing Time: 21:27:00, Create Time/Date: Wed Nov 24 10:11:00 2021, Last Saved Time/Date: Wed Dec 1 16:34:00 2021, Number of Pages: 1, Number of Words: 439, Number of Characters: 2503, Security: 0
File size
185.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
bd17731bd93af1612b46596d1fd9f58a9409a09c
SHA256
8ae51176a47ab8d141bad047f790aafcf68e13a9a6d1b8417232d02a371028e7
MD5
964281a4b3db032d2489e19b96824f69

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1203 office_exploit_creates_cmd: The document exhibits suspicious behaviour (creates a cmd.exe process)
T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1064 office_macros: The document contains macroses (total: 2)
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

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_queries_computername: Retrieves the computer name
T1064 office_macros: The document contains macroses (total: 2)
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 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_queries_computername: Retrieves the computer name
T1135 server_share_info: Retrieves information about each shared resource on a server
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call