Managed XDR

vtdl_1759400291_rnv3nh2p (ZLoader) — malware analysis report

File info

Filename
vtdl_1759400291_rnv3nh2p
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 5.1, Code page: 1252, Author: Debbie Brecht, Last Saved By: VirusMaster, Name of Creating Application: Microsoft Excel, Last Printed: Mon Nov 29 10:27:28 2004, Create Time/Date: Thu Dec 2 16:04:29 1999, Last Saved Time/Date: Sat May 6 14:55:42 2006, Security: 0
File size
188.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
c73c50f5d1a473bac2d9015cc3ccf203562c3e24
SHA256
4699c4860e0e73e10aa8474ee44a6d02c21c5829e3174df4d97183b3daec2b0a
MD5
3a1f00134ae84410736ddbff62966a41

Malwares

  • ZLoader

Signatures

Execution

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
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

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1064 office_macros: The document contains macroses (total: 2)
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

T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
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
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

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