Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a541e8dccdeb56…

MALICIOUS

PDF

42.7 KB Created: 2020-10-07 10:16:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-01
MD5: decf35af35b971f2ad4d0f2057d68e99 SHA-1: a22817667e83bbc7c27b176ce5f5fa1326c03104 SHA-256: 01a541e8dccdeb564b1ebf1757c188cca58e06ed972a25e347f3e218f1f08415
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ggtraff.ru/strik?keyword=descargar+libros+gratis+de+administracion+financiera+pdf In PDF document text
    • http://files.lanessamiller.studio/uploads/1/3/2/6/132695339/ae6df813c14277.pdfIn PDF document text
    • http://files.auntiejaniceentertainment.com/uploads/1/3/1/3/131379456/7282407.pdfIn PDF document text
    • http://satagug.ashleyscleaningservice.org/uploads/1/3/1/3/131379394/35ae3384.pdfIn PDF document text
    • http://litazu.cutekidscrochet.com/uploads/1/3/0/8/130874376/muxiroguvibutujaso.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f226a7dd-bf91-4222-828e-a965be645c04/82658737895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/5045/9047/files/squat_rack_and_bench_in_one.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1072/files/tom_brown_tracker_knife_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5891/1649/files/fajopinubanadalabibumusiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2308/4951/files/baby_trend_infant_car_seat_reviews.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/6229/2380/files/diablo_3_bot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4230882c-91b9-40a8-873c-a6c1ad487b2e/lijadofupugesagiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb65cb75-4d74-4c59-a201-41bf963d6814/15849590352.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33f8d5cd-a514-4bfb-8ff7-0daa3f51620a/kokap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb761472-d96c-4bba-be6f-7cf80293287e/bakadebaxoli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c0e82a9-bb6e-4fea-bf79-8b5d301b38ea/8666488633.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E8 5612 bytes
SHA-256: d5013c107eb182cfaea0dd65fa8ac749452de052b59f02c29569f1e9a81be714
font_01_sfnt_off000075e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E9 11632 bytes
SHA-256: ab8f71e841887b19a0d759fa73ace861d8ca66143e4892ddb4495bcb7ae820a1

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