Office (OLE) malware analysis — malicious · 01c635803b049b91

MALICIOUS

Office (OLE)

116.5 KB Created: 2018-10-02 22:41:00 Authoring application: Microsoft Office Word First seen: 2018-10-13

MD5: 41401ef5ba6715930c59ed15f39f269f SHA-1: ccd2c983996f43dbcada5803340aad5d91ac8afe SHA-256: 01c635803b049b9174b4bce3db1bcb3243b3d1c4fa4f978b8f676992563bd111

84 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a critical heuristic firing. The presence of a legacy WordBasic AutoOpen macro marker suggests an attempt to automatically execute malicious code upon opening. Although VBA extraction failed, the file's nature as a malicious document points towards a spearphishing attachment attack vector.

Heuristics 4

ClamAV: Doc.Malware.00536d-6705548-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.00536d-6705548-0
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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