Malicious PDF — malware analysis report

Static analysis result for SHA-256 83ffe0b00d667944…

MALICIOUS

PDF

59.1 KB Created: 2020-12-19 22:15:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a7f3db470f0f04aa2fc0d226ef1e4ff4 SHA-1: 5128c476032e01fe4f37c62425381fcf06860374 SHA-256: 83ffe0b00d66794418858ba1472c7b657159bb8294908497103b8bfbfc0bcd93
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which are part of an SEO link farm designed to redirect users to potentially malicious content. The presence of a UTM parameter in one of the primary URLs suggests a phishing or scam attempt, masquerading as a resume template to entice downloads. ClamAV detection further confirms its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7994

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://trafffe.ru/aws?utm_term=accountant+resume+template+australia PDF link annotation
    • https://renobikedasel.weebly.com/uploads/1/3/4/8/134897329/durozoletuzowuto.pdfIn PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/jenefemafawal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485810/normal_5faef61c47a7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366625/normal_5f8f902e76e66.pdfIn PDF document text
    • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/b006d78f45.pdfIn PDF document text
    • https://puduwoziwipaja.weebly.com/uploads/1/3/4/7/134724575/kuzipafikibajaboki.pdfIn PDF document text
    • https://tuxakosubulep.weebly.com/uploads/1/3/4/0/134012578/xolanibojexa.pdfIn PDF document text
    • https://dizuxegukus.weebly.com/uploads/1/3/4/6/134624336/5753983.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/farezelof/fact_sheet_template_microsoft_word.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/xaduxokinup.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/57616847306.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/dragon_isles_expansion_wow.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/recaro_car_seat_manual.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF78 4952 bytes
SHA-256: dccae9c3bf64c04e183c38d4760e43c795b1c03e90f7ea89f810f27c49845e56