Malicious PDF — malware analysis report

Static analysis result for SHA-256 4774b910ebdd1c18…

MALICIOUS

PDF

42.4 KB Created: 2020-07-31 16:53:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4d727175caa6bff3cf95a9110bca9be SHA-1: ede479bc756a2d83cbe1f7b236b433846784fc9f SHA-256: 4774b910ebdd1c18d051162d37e5fcf168bf387b2db53f7dc285a8daf077011f
194 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=dragonwings+chapter+1+pdf', suggesting this PDF is designed to lead users to malicious content. The ML classifier also strongly indicated maliciousness.

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/pify?keyword=dragonwings+chapter+1+pdf In PDF document text
    • http://files.thelancerfoundation.com/uploads/1/3/1/6/131636969/4008745.pdfIn PDF document text
    • http://files.castlewoodclays.com/uploads/1/3/1/4/131406222/5433307.pdfIn PDF document text
    • http://files.athleticsnorth.net/uploads/1/3/0/9/130969545/sojipe-rotizavolagebof-zegur-gadalinepema.pdfIn PDF document text
    • http://files.themoseschronicles.com/uploads/1/3/2/6/132682040/297927.pdfIn PDF document text
    • http://files.tericawright.com/uploads/1/3/1/8/131857920/wozojego.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/1/0434/2684/0737/files/89385760225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6151/8231/files/mewozowepasurel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/dudokugawisobobesitolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8637/2246/files/tejogajupulejewaratabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/97106659149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/8219964128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4527/3251/files/ridipomomaxiwamusoxokif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4744/4899/files/98506328039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7253/4166/files/53207297829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3676/0485/files/tisuzofomudatorana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/xejowifenubuxujoxuxes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9226/2560/files/27312467188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/21235239972.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_off000067fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FE 5528 bytes
SHA-256: b1238df33c8526ced344a152483e1b8b93692b61fc2889ef91eaf8a8c389fdb3
font_01_sfnt_off00007aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AEB 9900 bytes
SHA-256: b04d17e4bf1cc8b95823a360a1c8e03b0ada11758f28b76ce7f6cd0b88ad14d1

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