Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a61a2e37efe3d22…

MALICIOUS

PDF

43.7 KB Created: 2020-11-18 11:28:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5d68b28e70b95fe8f26d59dd4da08a12 SHA-1: a41c56bf094b3a75da11f6a46a8982e8bf82f4b0 SHA-256: 9a61a2e37efe3d220a76984ee44c51505ea738798aa5ccb3f95dd68bdeaafcd1
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a link farm and an SEO redirector pointing to 'https://traffset.ru/strik?utm_term=hp+compaq+l2105tm', which is indicative of a phishing lure for free downloads. ClamAV also detected this file as 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0', further supporting its malicious nature. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6591

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://traffset.ru/strik?utm_term=hp+compaq+l2105tm PDF link annotation
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/6551180.pdfIn PDF document text
    • https://gononazenikemad.weebly.com/uploads/1/3/4/4/134482012/numara.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/gcasey_photography_coupon_code.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/netgear_prosafe_fvs318g_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/html_css_color_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d4255cf-5660-436d-aa5a-661fae4c9674/kopezomukirigag.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/kidazuzatubud.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/english_punctuation_exercises_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a3b251c-e5d5-48aa-8855-e72421b00118/xegugalesogaruvigejewip.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/family_tree_template_including_siblings_and_cousins.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/sopopotorugil.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/rilaturukasi.pdfIn PDF document text

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