Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dceda6a06c02491…

MALICIOUS

PDF

41.5 KB Created: 2020-08-11 09:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b8ed83ba13a2607c9a7e8a8a8f467aff SHA-1: 13538b33141ead9c5dc267cf824d42abcaf2004d SHA-256: 3dceda6a06c02491a98f1b7b83c6cb3c182dd59d8034660b796ea085b8de1388
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, which is flagged as malicious. The document body and heuristics indicate a lure, specifically an invoice or payment-related theme, to entice users to click the malicious link. The PDF also contains a large number of external links, suggesting a link farm or SEO poisoning tactic.

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.com/wb?keyword=bosch%20tankless%20hot%20water%20heater%20manual In PDF document text
    • http://files.hanshen-sg.com/uploads/1/3/1/1/131164153/fbd4b.pdfIn PDF document text
    • http://files.madmaggy.com/uploads/1/3/1/6/131606343/furizijote-vogora-konifa.pdfIn PDF document text
    • http://kesilijo.anaprojectprep.org/uploads/1/3/1/4/131406717/betop-xipoxo.pdfIn PDF document text
    • http://lujow.nikolebethea.com/uploads/1/3/1/6/131636744/mitosupejox.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/1/0434/8005/5958/files/badexoxezapax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1090/8572/files/89529044809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/2006_scion_tc_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5697/9351/files/rune-_etched_quill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4637/9426/files/saga_caballo_de_troya_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2236/0481/files/xofezopegonokudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0912/0152/files/lolefinove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/28308920293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3586/files/autoimmune_paleo_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5756/0217/files/buxorotalutuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2511/1972/files/tujozanunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/aghora_mantra_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/vicks_filter_free_cool_mist_humidifier_manual.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_off000063bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BC 5244 bytes
SHA-256: db9f82832ae9e71be8067b8715df4ee97e27e681c9fd636e44302e4764f9555e
font_01_sfnt_off0000756e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x756E 10404 bytes
SHA-256: fd4045c298f2acdb7b3d4e6ff2e3279251eadf8fa454f8ea4f558e637b9f1b3d

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