Malicious PDF — malware analysis report

Static analysis result for SHA-256 51ff2d14652cc80e…

MALICIOUS

PDF

52.5 KB Created: 2020-08-07 07:41:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 631c56ae5689a62c8492bd6b005bb80d SHA-1: df3dc9888ae441f0c1a434013ea2fb5c0791409a SHA-256: 51ff2d14652cc80e2dcdb37ea102820e434ce9773bab96099abbab9b6ce90741
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=man+in+the+mirror+chords+pdf', which is flagged as malicious. This suggests the document's purpose is to redirect users to malicious infrastructure.

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=man+in+the+mirror+chords+pdf In PDF document text
    • http://nonimoki.stephaniebatemansweet.com/uploads/1/3/1/6/131636612/18002f44a.pdfIn PDF document text
    • http://zarenuz.mrsmcbrideskindergarten.com/uploads/1/3/0/7/130776046/f3584d4e6289.pdfIn PDF document text
    • http://files.poppyseedwindchimes.com/uploads/1/3/2/6/132695829/julodedusinozuzogi.pdfIn PDF document text
    • http://files.belllog.org/uploads/1/3/0/7/130775827/2358242.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/1/0431/7036/5602/files/implicature_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9272/9246/files/kupekakolajixan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/49443808175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/taveluwuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7026/6273/files/sodobamiwokewunoloxidimed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4506/9724/files/joretetegebimuluvuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/kejamavelixefusata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7951/3752/files/migerivuvizewubalirinevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/zujowelejarepojuvikitut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/2026529940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9448/files/puzexatinawomogum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/lutozipejode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5653/6471/files/36416375396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0888/3870/files/laviguvunav.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_off000080ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EF 5368 bytes
SHA-256: e75851e797f356c5daa9d3d66e00c375a331b38d03e9a023116c6d48217967c7
font_01_sfnt_off0000930f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x930F 16148 bytes
SHA-256: 7e99ab34684c67249005615272e38fbd8459bebc21ded61a4581d9f153f82d7b

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