Malicious PDF — malware analysis report

Static analysis result for SHA-256 df13d2b597a43763…

MALICIOUS

PDF

40.0 KB Created: 2020-04-09 04:15:22 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7e9bdf8c1a2cc2c0dc05e1723dc2b756 SHA-1: 9d8a9a63f3f174c61ac8bb71a5770600bdad7e2a SHA-256: df13d2b597a43763d97fe4130539f9de6ff894c5990be09396f22bd733e14c5f
62 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, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The document body, though partially corrupted, contains text related to a legal contract and references to external URLs. The primary heuristic firing indicates a 'PDF_SEO_LINK_FARM' which points to multiple suspicious URLs hosted on domains like 'gia911.net' and 'emojeetravel.com'. These URLs likely serve as lures for phishing or to distribute further malicious content.

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://emojeetravel.com/uploads/1/3/0/3/130313428/130313428.html#modelo+de+contrato+de+transaccion+extrajudicial+chile
    • http://gia911.net/uploads/1/3/0/7/130739060/pelegelunewezigupeli.pdf
    • http://utilitycarsunlimited.com/uploads/1/3/1/3/131380993/9540228.pdf
    • http://sustainedquotes.com/uploads/1/3/1/3/131380837/rifoxek_tajel_kimifekinabar.pdf
    • http://booksbycatherine.com/uploads/1/3/0/5/130543133/wapigavow.pdf
    • http://garymellon.com/uploads/1/3/1/3/131379041/2bfaede8d.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007020.bin
92ac2db4ab6b696f0e446e7fa7ba1c62c85f7335db2df3f3309b9fc22c58e1ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7020 9364 bytes

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