Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d6262dccede6b9…

MALICIOUS

PDF

32.2 KB Created: 2020-08-21 22:06:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 176353d8bcc63ee95d37297b2f3bb2e5 SHA-1: fbc9573e194a7d62d0bc8511e6ee6dd93656150f SHA-256: c0d6262dccede6b92bc945b28cb4378cd463dd712f8af18c6682ba7dd15d1a4d
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains a URL that appears to be a lure, and the file contains numerous embedded links, many of which point to Shopify domains hosting other PDFs, but one critical link points to a known malicious redirector. This suggests a campaign to distribute malicious content through a network of linked documents.

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=shake+yo+body+video+song In PDF document text
    • http://files.countyparkfriends.org/uploads/1/3/0/8/130814279/zobisulit_selitiga_sojinotavom.pdfIn PDF document text
    • http://files.langleytheatreworkshop.co.uk/uploads/1/3/0/7/130739864/kiritusa.pdfIn PDF document text
    • http://files.setxnewhorizons.com/uploads/1/3/1/6/131637606/cd87453ae5d.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/1/0428/9835/8432/files/59022585862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/binejuzitixeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4741/files/purasudenime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/20723400878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1689/6159/files/hadoop_hive_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7382/9032/files/minecraft_teleport_to_player.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/9756/2776/files/lesiroxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1603/6249/files/taxonilajevikiviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3549/0466/files/aula_basica_de_violo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5169/6796/files/brainstem_reflexes.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_off000040d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40D2 5428 bytes
SHA-256: bf57c84aba4f90a0dc268da1cd719f541265b42b33f243b7ba4d177489f70920
font_01_sfnt_off00005345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5345 9684 bytes
SHA-256: 4029ba90f4df688c29e85395cc337126dda8a16f00a78eedc421f5498b382373

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