Managed XDR

vtdl_u8_7iw90 — malware analysis report

File info

Filename
vtdl_u8_7iw90
File type
Zip archive data, at least v2.0 to extract
File size
14.1 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
4dc3d2f7563ec4747d89d0bb4f871d671b2da039
SHA256
bb7261a3d53a93288e2fc0bfcc701b28b58a036df2e7cde91587a061a22224e7
MD5
c8759c6be2f732cba4c65c38494e17cb

Signatures

Execution

T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

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

T1564.001 stealth_file: Creates hidden or system files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1027.002 packer_entropy: Probably contains compressed or encrypted data
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

Command and Control

T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
require_administrator: Requests administrator privileges
has_pdb: This executable file has a PDB path
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
message_box: Displays a message
dotnet_obfuscated: Dotnet program is potentially obfuscated
test_check_service: Starts services
office_links: Office file contains external links
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_use_suspicious_functions: Dotnet program potentially uses suspicious functions/modules
dotnet_mixed_assembly: Dotnet program is mixed assembly
dotnet_unmanaged_entrypoint: Dotnet program has unmanaged entrypoint
many_files_in_archive: The archive contains more than 5 files