Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc39e74feb2c9410…

MALICIOUS

PDF

92.6 KB Created: 2020-12-22 03:18:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 3425f391a6c6e877d6a02e378c033981 SHA-1: faea96e6b67185ffa61730f52f1b4bc191ee4bab SHA-256: bc39e74feb2c94105e21a214ecab5b2729179ebd3078736740d6f0206fa449b8
252 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with at least one pointing to a known malicious redirector. The heuristic firings indicate a malicious redirector link and a link farm, suggesting the document is designed to drive traffic to potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9201

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/aws?utm_term=avengers+mobile+wallpaper In PDF document text
    • https://turexebino.weebly.com/uploads/1/3/4/2/134265835/nulonike_tovape_wowuragigapog_nigoperedizater.pdfIn PDF document text
    • https://nafugawiwira.weebly.com/uploads/1/3/1/4/131438392/fejixelo-gexakonetubedu.pdfIn PDF document text
    • https://zawasofolebu.weebly.com/uploads/1/3/4/9/134902788/wovudusus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47472d81-fb5c-4167-bd5c-9592a473ccae/advance_auto_parts_employee_handbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/695ccc99-7b8d-471b-bcd5-7cc859647792/a.o._smith_signature_water_heater_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/android_10_update_pixel_what_s_new.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e713b9c-af13-4148-ac3b-747bbd629b8a/21197268518.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86c17d6b-e62e-4414-b6ea-44306de298bf/fosaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c125c412-040b-4178-8e11-0ff9512fc3d8/kinegaxafozudidivotiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d00a340-0283-40a3-8230-8f6c83612985/dd_5e_monster_manual_torrent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35900ab0-4420-4a75-89e6-039b04baa5f2/midwest_heritage_bank_locations.pdfIn PDF document text