Malicious PDF — malware analysis report

Static analysis result for SHA-256 052410a97d84dbf1…

MALICIOUS

PDF

47.3 KB Created: 2020-08-18 13:57:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a69e61473a88d068f567ad68335f3c3 SHA-1: f9c24adf00a51c22976777e1734681f80bc0f690 SHA-256: 052410a97d84dbf1dfec11c8bfaf74df75ae9c3cb404dd14bff8fdd277afccee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to Shopify-hosted PDFs, which is indicative of an SEO link farm. One primary link, https://ttraff.ru/pify?keyword=java+programming+array+example+pdf, is identified as a malicious redirector, suggesting the document's purpose is to drive traffic to potentially harmful sites. The ML classifier strongly supports the malicious nature of this PDF.

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=java+programming+array+example+pdf In PDF document text
    • http://files.themslist.com/uploads/1/3/1/8/131871814/nuzikemazumupi.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/1/0430/5993/7434/files/sufavekutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4635/4592/files/favikotarogepuvef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0717/9941/files/76893758958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/zibofuregoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6318/1463/files/tozatofom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9749/8535/files/99068265105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6948/0866/files/23533437006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0224/7838/files/molomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/32167276854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2686/6599/files/70911168257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1201/2701/files/fixubimowovubase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7803/2296/files/sepsis_fisiopatologia_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1400/2587/files/bumolefo.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_off00007a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8F 5400 bytes
SHA-256: 70d0a885eccc79e8268f44db7e903f501f7ec1793b3f9d96f6d576a85059c59a
font_01_sfnt_off00008ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE6 10380 bytes
SHA-256: 63c80a5e2ba88b590f4ec65f691812c7a1227ddd5d15e0b92d538236031b0e8f

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