Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 caec8f597a6104f3…

MALICIOUS

Office (OLE) / .DOCX

151.3 KB Created: 2020-09-24 10:05:00 Authoring application: Microsoft Office Word
MD5: 319acbff498d64eebe7b97febc2a2d16 SHA-1: d18188c87fa0faa5b1555195bbacbe92f612f5a8 SHA-256: caec8f597a6104f3633061449bb3873405b3b89a62881cc8985ac007ff591263
240 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is a malicious Office document containing a VBA macro that automatically executes upon opening. The macro utilizes CreateObject and p-code auto-execution, strongly indicating it's designed to download and execute a secondary payload. The ClamAV detection name 'Doc.Trojan.Agent-9765752-0' further supports its malicious nature. No specific family could be identified.

Heuristics 7

  • ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b39e572cf96864edb4f5c39daa3a8388f74111156690860ca53002be67bbf3ff
vba-macro oletools.olevba.extract_macros (decoded VBA source) 20583 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.