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

Static analysis result for SHA-256 cfd2e092388affea…

MALICIOUS

Office (OLE) / .DOC

172.0 KB Created: 2021-01-25 09:28:00 Authoring application: Microsoft Office Word
MD5: cad83715de16c9ebe025ab612f5ac0ba SHA-1: 7881daed33bd1f4ec63d98b7520aca2385effa3f SHA-256: cfd2e092388affead83a593ec76c0204c461c4bd9f42bd6d6c964b9c15efe0c1
200 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is a malicious OLE document containing VBA macros. The 'Document_Open' macro is present and configured to execute using 'GetObject', indicating an attempt to run arbitrary code. The ClamAV detection 'Doc.Malware.Valyria-10034158-0' further confirms its malicious nature. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure.

Heuristics 6

  • ClamAV: Doc.Malware.Valyria-10034158-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Valyria-10034158-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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.
  • 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
f3c1208957a8588b8a5352b63af9a94a87401fa2b1f98d6dafce63f68312781e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8529 bytes

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