Malicious PDF — malware analysis report

Static analysis result for SHA-256 053cf406c56a5540…

MALICIOUS

PDF

56.7 KB Created: 2020-09-12 21:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb8f6b1b393e9aeef0959e0aef3a454e SHA-1: 1e34c29a3a3d83c34e874c44a61a041e6d1b6d86 SHA-256: 053cf406c56a5540dd2ac23ea58f59b0547a7b297206ce6a1ffc6302d70ef113
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains embedded links that point to a known malicious redirector, disguised as a car stereo manual. The heuristic firings indicate that this PDF is part of a link farm designed for SEO manipulation, likely to phish users. No scripts were extracted, but the presence of malicious redirectors and the overall structure suggest a phishing or malware distribution attempt.

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.link/pify?keyword=sony+wx-920bt+car+stereo+manual In PDF document text
    • http://zosutul.breakersgorey.com/uploads/1/3/0/9/130968917/7351944.pdfIn PDF document text
    • http://kanofuf.uniontownartclub.org/uploads/1/3/0/7/130739974/c38b0dcec15636.pdfIn PDF document text
    • http://files.us-msminer.net/uploads/1/3/1/4/131452870/vejugotulipi.pdfIn PDF document text
    • http://tosowavir.liekeanna.com/uploads/1/3/1/4/131409546/5445999.pdfIn PDF document text
    • http://lutitobe.terahlynn.com/uploads/1/3/1/3/131378960/363bb88123aa9c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/7a359d_03a94f26275c450c9deeb65c01a7adfb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/455f95_bafd77ade5e746fbb0dc632d6a008bce.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1b7c00_664701aeffdc4654a56e844faa66c677.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5e81b9_8ea282bbe42b4a33880e52392f069856.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/1c8c6c_40e59da1f45f468a8a330c708e97794f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2058/2050/files/captain_underpants_movie_300mb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7048/7712/files/bus_eireann_tralee_to_cork.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/wuxujekadogemojexezoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0577/1939/files/ketefanabebigopevulamupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/vawexidifepomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0998/2107/files/29439404659.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_off00009583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9583 5912 bytes
SHA-256: 9d6d280a4c04c23b1fbe4d7181d945f833be2a5276c920aa85b2f9d3b86560ae
font_01_sfnt_off0000a9a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9A4 13688 bytes
SHA-256: 351ba1ac8d0c2b13ff2824ec780a8f0518ff8756156f9a83bb2a6f48aa61f7b0

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