Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2c9a4b8d6b5fc3…

MALICIOUS

PDF

50.6 KB Created: 2021-02-17 02:15:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 01f9b0b6416ec730f4fcc44c458a34ee SHA-1: 7fd72a898db15c9d659a8604a4ccf4e440f8b31c SHA-256: ca2c9a4b8d6b5fc3dfe3b8f23c092a40e67507994aa52bd08e8559966f5fa942
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, many pointing to disposable hosting and employing UTM parameters, indicative of a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to exploit users by directing them to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9328

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jacksth.ru/aws?utm_term=the+wounded+healer+book+pdf PDF link annotation
    • https://cdn.sqhk.co/rinugezig/diijiHl/netflix_cuties_casting_process.pdfIn PDF document text
    • http://redit.fun/4785527658696qgb.pdfIn PDF document text
    • https://tigigedilopufam.weebly.com/uploads/1/3/5/4/135400960/7dc6612c8bed700.pdfIn PDF document text
    • http://kpovli.ru/gapujewajidexivubuvujur99r27.pdfIn PDF document text
    • https://cdn.sqhk.co/mewivupa/icheDji/ncg_movie_showtimes_today.pdfIn PDF document text
    • http://freshnatur.fun/18030080137aeprz.pdfIn PDF document text
    • https://cdn.sqhk.co/zisubiziwu/abLjvjb/43208072976.pdfIn PDF document text
    • https://gudifikopar.weebly.com/uploads/1/3/4/6/134627505/fidixuzilozenuv_tinaja_nuzox.pdfIn PDF document text
    • http://cheatyou.site/65044370758mvbe5.pdfIn PDF document text
    • https://befugusugub.weebly.com/uploads/1/3/2/6/132683140/50d4d34da1990.pdfIn PDF document text
    • https://cdn.sqhk.co/fakosopalo/jbvibhf/winking_lizard_independence_ohio_directions.pdfIn PDF document text
    • http://lumacy.site/43930679803i5ze9.pdfIn PDF document text
    • https://cdn.sqhk.co/rifelefiw/gfAha7U/push_box_game_solution_level_13.pdfIn PDF document text
    • http://1xbets-regs.site/945504823170f8md.pdfIn PDF document text
    • http://b0xberry.online/94230696353cla04.pdfIn PDF document text
    • https://cdn.sqhk.co/kenujowemi/jfhfqw2/xubave.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/zobujeresigudazo.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/boxuvavab.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/goxaxijadekogiraxirugom.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/98242311847.pdfIn PDF document text

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