Malicious PDF — malware analysis report

Static analysis result for SHA-256 48429a7cf0dcc0c8…

MALICIOUS

PDF

64.8 KB Authoring application: QPDF
MD5: 31f48bafc146bc0a1c84daf8249ba765 SHA-1: b55a5658108a01120b173a88be750958ebfbb17e SHA-256: 48429a7cf0dcc0c83263b25fe13009591592817000a8b6c0ebf9138100f5f05d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically related to phishing. The document body, though partially corrupted, mentions 'Manuel d' utilisation peugeot 407 pdf', suggesting a lure to disguise the malicious link farm as a user manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://bove.targo-bank-de.com/uploads/2020/01/28/088df00f14ace.pdf
    • http://dallasclinicalpsychology.com/uploads/1/3/0/3/130379411/nigilefata.pdf
    • http://bubblesoccergeelong.com.au/uploads/1/3/0/4/130489475/e80587096b.pdf
    • http://diagmal.eu/uploads/1/3/0/5/130551920/xixiris.pdf
    • http://nkaskephotography.com/uploads/1/3/0/4/130483860/9180039.pdf
    • http://annpiquette.com/uploads/1/3/0/6/130621663/gowadokurola.pdf
    • http://l-etro.com/uploads/1/3/0/6/130605472/xufeganizujuxek.pdf
    • http://rickydemedeiros.com/uploads/1/3/0/2/130287886/130287886.html#manuel+d%27+utilisation+peugeot+407+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010cc.bin
00da1ff3552668646b5889f29b66bda9ef8075e0972de3b05131271f71b61bd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CC 7728 bytes

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