Formbook Office (OOXML) malware analysis — malicious · 29258c1bef796e0d

MALICIOUS

Office (OOXML)

60.0 KB Created: 2021-10-26 12:18:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2021-11-02

MD5: 05ed372904b430fe1506195f8ce9d446 SHA-1: a4046145c09b3b7b2363446efbaeeab97cced4dc SHA-256: 29258c1bef796e0db1f3e2ba38905d8a054c66bb49aca20b3f77d581196d071c

62 Risk Score

Malware Insights

Formbook · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected by ClamAV as a downloader for the Formbook malware family. While no specific malicious URLs or scripts were extracted, the detection signature strongly suggests the document's purpose is to download and execute a second-stage payload. This aligns with common tactics for delivering malware via spearphishing attachments.

Heuristics 2

ClamAV: Doc.Downloader.Formbook-bc97c1e0c33c3c93-9951465-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Formbook-bc97c1e0c33c3c93-9951465-0
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/markup-compatibility/2006 In document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)

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