Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f9de078b545cb6d…

MALICIOUS

PDF

38.8 KB Created: 2020-08-22 19:53:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d82f0541fa70c04373f867d70aff23bb SHA-1: 5674970968e577efe335e3ede6aaa8ddd4be3a50 SHA-256: 0f9de078b545cb6d1b0e8cf1891cd27e3ee1b4013bc47b8238150506ef19be83
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a known malicious infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though partially corrupted, includes the same redirector URL and several Shopify links, suggesting a link farm or phishing attempt. The ML classifier strongly indicates maliciousness, and the overall structure points to a social engineering tactic to drive traffic to a malicious site.

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=como+transformar+celsius+em+fahrenheit+e+kelvin In PDF document text
    • http://files.kreativtouch.com/uploads/1/3/1/6/131637218/varaweralefemurubu.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/1/0431/7731/2405/files/pakefosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/33980561610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/athreos_god_of_passage_edh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8441/1033/files/wings_of_fire_book_1_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8978/8070/files/dolomites_italy_tour_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2192/4514/files/class_10_science_project.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9904/6553/files/m777_howitzer_technical_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ziwodukujaluladiludu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1327/5811/files/killer_been_unleashed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5368/4638/files/indycall_app_for_android.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 3

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_off000055e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55E3 5148 bytes
SHA-256: 22e47e14365b0d20e345b908a1f9ec4d34df0c9eff7d3026096b412bb13f00a5
font_01_sfnt_off00006737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6737 12400 bytes
SHA-256: e08afd57769cb7e630ae7da74c10f77978270cf5b7e6299d1ba577f503681c73

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