Malicious PDF — malware analysis report

Static analysis result for SHA-256 af60a0383705c302…

MALICIOUS

PDF

42.0 KB Created: 2020-08-21 22:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c842014ca8cd43b569dafa8719e177b8 SHA-1: c304f05538d822e5e7c0e8fdcc54a504d5942cf8 SHA-256: af60a0383705c302210e16b20304ac90afa3c0542c8439f394ccce447b344f8c
194 Risk Score

Malware Insights

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

The PDF file contains a lure related to deleting an Instagram account, which is a common social engineering tactic. It embeds multiple links, with one identified as a malicious redirector pointing to 'ttraff.com'. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to improve search engine ranking for malicious content. The ML classifier strongly flagged this PDF as malicious.

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/pify?keyword=come+eliminare+account+instagram+su+android In PDF document text
    • http://files.petereident.com/uploads/1/3/1/4/131437636/xogoser.pdfIn PDF document text
    • http://roloze.caseygrey.com/uploads/1/3/0/9/130969465/662c5964cf.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/1/0438/0390/2112/files/vitukavuzelub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/neboxiduxaxurajof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1710/8642/files/outlook_365_not_opening_attachments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/participatory_action_research_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/abc_small_letters_writing_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0292/1123/files/maldivian_democratic_network_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3941/6732/files/lebekiluvod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4503/4911/files/37486418028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/zovuviruzazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47184882359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/97192421031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9440/0412/files/mevozakexezitevuxuramotu.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_off0000664a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664A 5164 bytes
SHA-256: 2535b698197d9604067f5f52eec170794a6f82df310b93b172f57fd2c7022fea
font_01_sfnt_off000077b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B3 10352 bytes
SHA-256: 7f39203b66dc9640a864443a45453e5102287a50380a8cb53266d7bbb2f7c900

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