Malicious PDF — malware analysis report

Static analysis result for SHA-256 44564e4e199c3d88…

MALICIOUS

PDF

44.5 KB Created: 2020-10-10 12:21:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-07
MD5: e3897f9f44742de8981da6136f174572 SHA-1: 7f5b83d2088b7e06fabda6b0325f50547ee6c370 SHA-256: 44564e4e199c3d88edc20799691b239d959b95798401b4f29d7eb4f41e4fca02
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://gettraff.ru/strik?keyword=kristan+higgins+blue+heron+series In PDF document text
    • https://site-1039815.mozfiles.com/files/1039815/goguzikosapano.pdfIn PDF document text
    • https://site-1038954.mozfiles.com/files/1038954/51506149326.pdfIn PDF document text
    • https://site-1039684.mozfiles.com/files/1039684/xipijepolev.pdfIn PDF document text
    • https://site-1036881.mozfiles.com/files/1036881/54367157328.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1436/4059/files/pumimilemawino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1879/9264/files/54502733064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9365/0325/files/40889926719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1819/0489/files/pathfinder_giant_mantis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4106/5630/files/polk_audio_5000_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8122/0505/files/44798319234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/molivageluvesodobu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc3357b9-7474-4219-bb2a-78ba24e8e85b/43638208914.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/799aac2a-08fd-441f-91d9-56d7c94e9e42/23560657445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68da280b-4b46-494c-9225-2eb4160eb62f/subikomirorug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ec8cfca-c56b-4d97-b181-031188650eb7/zisodukoma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/204a34f0-2af5-4522-b1a8-d05c8be13fd4/53026955839.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006faf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAF 5056 bytes
SHA-256: c635c895b67ad3c198d14782929da6993323418b5f4423879f7820d6d0609e2f
font_01_sfnt_off000080d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D5 10688 bytes
SHA-256: 646749702f75fffdc656d2fb2e2ce65bded12aebf12f349bff5524a40e4beace