Managed XDR

vtdl_khpkswei — malware analysis report

File info

Filename
vtdl_khpkswei
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: vlcqBjjWJkHThPgSWv, Last Saved By: Company, Name of Creating Application: Microsoft Macintosh Excel, Create Time/Date: Mon Nov 23 13:55:34 2020, Last Saved Time/Date: Mon Nov 23 14:13:13 2020, Security: 0
File size
366.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
d5efe8b4ef2b7859d3eab146cb46ed308cd19aaf
SHA256
23bce37992efee341f7ce2c576c3ac604756172be086d247acee057c5988bd70
MD5
ad5b478b95e191130f8da546fe276dc4

Signatures

Execution

T1203 office_write_exe: Office document dropped an executable file
T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1203 office_runs_dll: Suspicious document behaviour (tries to execute dll file)
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1559 suspicious_process: Spawns a suspicious process
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1064 office_macros: The document contains macroses (total: 3)
T1064 office_macros_autoexec: The document contains an auto-start macro

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

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
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: 3)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1070 stealth_window: A process created a hidden window
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

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

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

Other

creates_exe: Creates executable files in the file system
http_file_not_found: Attempts to download EXE or DLL file but receives HTML with an error
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
break_limit_exceeded: Warning: function calls limit has been exceeded
message_box: Displays a message
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