Malicious PDF — malware analysis report

Static analysis result for SHA-256 91d9c8fb5c9a35fa…

MALICIOUS

PDF

45.0 KB Created: 2020-08-17 10:54:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ae9aaf497c992d2f484de0c7ac03601 SHA-1: 896e87a66869716cd479fcd58b3ced0f20b66ae8 SHA-256: 91d9c8fb5c9a35fa99b23ef840e4dcc92786a93e2d4fa0f990524e18bd6d6fc6
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=lspdfr+blaine+county+sheriff'. This suggests the document's primary purpose is to redirect users to malicious infrastructure. The presence of a visual download button further supports a lure-based attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=lspdfr+blaine+county+sheriff In PDF document text
    • http://files.silvaopus.com/uploads/1/3/1/3/131398174/woduti_buzibupenev_xowojulevaxedij_xazikare.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/1/0431/6689/2186/files/fagerosikoluxusirisuzos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6939/1527/files/hibernate_interview_questions_and_answers_for_experience.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3964/5093/files/56675003189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/najanegukurujovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9283/files/genufonilipafofotimisulol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/8267476981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bagubiginapir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3916/1500/files/parches_de_alginato_de_calcio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/34780415319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4835/files/anaconda_2_tamil_movie_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5108/2143/files/17104747201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/lonely_planet_georgia_armenia_azerbaijan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4836/0343/files/beads_making_tutorials.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 2

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_off00006997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6997 5424 bytes
SHA-256: 83f0aba503d25d14227f3d2e731a2de7e224b0c47b74d656a54a8a5d45814345
font_01_sfnt_off00007bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFF 13216 bytes
SHA-256: 5325a7a84f08b431654248ef5e9de3847974d8207b8638e4411a2b97c0135d0f

Open this report in the interactive analyzer, or submit your own file for analysis.