Office (OLE) malware analysis — malicious · 2c771c30aafaf996

MALICIOUS

Office (OLE)

131.8 KB Created: 2018-10-03 10:13:00 Authoring application: Microsoft Office Word First seen: 2019-01-12

MD5: 314d172254d94cdf3ab4ced2e64b22c6 SHA-1: 82316d86d1ce6ff9bb435aa7b39481ba03dcbf0f SHA-256: 2c771c30aafaf996ff9fbafb1058fee11e76e42920b6198a63a4bdeabbafedfc

84 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The file is identified as malicious by ClamAV and contains a legacy WordBasic auto-exec macro marker (AutoOpen). Although VBA extraction failed, the presence of the marker suggests an attempt to execute malicious code upon opening. The embedded URL is benign, and the document body is obfuscated, preventing further analysis of the lure.

Heuristics 4

ClamAV: Doc.Malware.00536d-6705831-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.00536d-6705831-0
Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC

OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTED

olevba could not extract VBA macros (AssertionError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
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 In document text (OLE body)

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