Managed XDR

vtdl_3ffhd3x8 — malware analysis report

File info

Filename
vtdl_3ffhd3x8
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 936, Last Saved By: zongcheng wang, Name of Creating Application: Microsoft Excel, Create Time/Date: Sun Feb 4 02:41:48 2024, Last Saved Time/Date: Sun Feb 4 02:41:48 2024, Security: 0
File size
2 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
5b23352ec67d6ab7b17f8a013ca586db7bcf55aa
SHA256
0bc2f86f0775d4c9bc096e305873bc0f2ed5f7fb14a60d5d0f736f2e5f19e787
MD5
cd1a5134b8f453e7936e35a35d1abaa7

Signatures

Execution

T1064 office_macros: The document contains macroses (total: 4)
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 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
T1064 office_macros: The document contains macroses (total: 4)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1027 office_macros_entropy: The document contains a macro with high entropy (a possible sign of obfuscation)
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

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
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
creates_doc: Creates (office) documents in the file system
office_summary: The document contains suspicious metadata
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