Office (OLE) malware analysis — malicious · a4b16d5524010210

MALICIOUS

Office (OLE)

125.8 KB Created: 2018-10-03 15:07:00 Authoring application: Microsoft Office Word First seen: 2018-10-13

MD5: e20666fcff28744b39beac660a9e6a94 SHA-1: 9c75d17292c869d0d7af5b655783e21df5797472 SHA-256: a4b16d55240102109d69674a297412e03bd07b77c71ba12cec0b1a3588b23362

84 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Julm-6794628-0. A legacy WordBasic auto-exec macro marker (AutoOpen) was detected, indicating an attempt to execute code upon opening. However, the VBA macros could not be extracted due to an unsupported format, limiting further analysis of the script's specific actions.

Heuristics 4

ClamAV: Doc.Downloader.Julm-6794628-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Julm-6794628-0
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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