Malicious PDF — malware analysis report

Static analysis result for SHA-256 20a359263381c7d7…

MALICIOUS

PDF

42.3 KB Created: 2020-08-11 19:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2e888db7073b5e76c682d8603015e7c SHA-1: 2bedf39cf72144582d132ba3141b82c22e652767 SHA-256: 20a359263381c7d774859ec968b34c474eb8c5b5352b56a27c9d74fec9f08d31
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded links, identified as a link farm, designed to redirect users to malicious infrastructure. The primary redirector URL is https://ttraff.ru/wb?keyword=fashion%20business%20plan%20template%20pdf. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a phishing or redirection attack pattern.

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://ttraff.ru/wb?keyword=fashion%20business%20plan%20template%20pdf In PDF document text
    • http://files.heritageecc.com.au/uploads/1/3/0/7/130775432/b7a91b287662043.pdfIn PDF document text
    • http://files.ysgolbryngarth.com/uploads/1/3/1/3/131384127/b925d6141.pdfIn PDF document text
    • http://kisexogag.ivansparrow.com/uploads/1/3/1/3/131398591/savajasog-lojumada-kajanabuvo.pdfIn PDF document text
    • http://files.marshalltownsend.com/uploads/1/3/1/4/131437711/2595957.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/1/0441/1126/5944/files/wusetapepev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/27885654043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8047/2984/files/english_grammar_book_grade_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7742/7609/files/77341712849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0667/2546/files/koralode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1613/4551/files/mixabejixafaraga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4188/0224/files/les_14_besoins_fondamentaux_de_l_homme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3266/4481/files/21372912353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3976/0285/files/anatomia_bochenek_chomikuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/umbrella_academy_comic_volume_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/wobawefajekiliwirifesuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9765/2376/files/84620047464.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 5

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_off000067ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AC 5280 bytes
SHA-256: 33d2e542179211527dce47e54922b6fe02212dfcc54a04d77330ee8b787dca21
font_01_sfnt_off0000796e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796E 10240 bytes
SHA-256: e1b27b4daff40dc058e75f9502e38584b73e6cfdf7f4d4778b17bc5e476b206a

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