Malicious PDF — malware analysis report

Static analysis result for SHA-256 e28928759514dbdc…

MALICIOUS

PDF

38.8 KB Created: 2020-08-09 05:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ae9a46b181f5656b79d593b7a4b28d8 SHA-1: b4286a66bee9daf20c2b1cc3399a942c93cc6059 SHA-256: e28928759514dbdc817b21a4deddbca8bc34c930703d8e1a41cf80758c874337
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains text related to a pension scheme and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous links to external PDFs, many hosted on Shopify, points towards a link farm used for SEO poisoning or distributing malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=pradhan+mantri+atal+pension+yojana+form+pdf In PDF document text
    • http://files.kathrynrobertson.co.nz/uploads/1/3/1/4/131454482/48bf38a9f6b59d.pdfIn PDF document text
    • http://files.drgigisrmuf.org/uploads/1/3/1/6/131637168/jufosomitup.pdfIn PDF document text
    • http://files.bampilates.com/uploads/1/3/1/4/131438741/1940dcd9a51.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/1/0432/2328/5928/files/68499827291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/11118204203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/6673438335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8871/4653/files/i_bet_ciara_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27984898694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18983443830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/rapidex_english_speaking_course_kannada_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/nipijukavofilujegagulejob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8541/4056/files/27332171750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4298/7422/files/gibenarawim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5435/files/gebegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/mahindra_tractor_spare_parts_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8102/3140/files/etica_aristoteles_livro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5172/8546/files/zajugalemafizofolewanine.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_off00005985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5985 5460 bytes
SHA-256: 1b649293bd2f8702dc6864c0825b22a11756d0a09ee8e6d20ed123956cc56635
font_01_sfnt_off00006bf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF5 9928 bytes
SHA-256: 53d8953d8f0328ec79fe278d75c340a1811a6c2ef8dd4abb84a7da7b4dba7a19

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