Malicious PDF — malware analysis report

Static analysis result for SHA-256 80e498fe8288b2ad…

MALICIOUS

PDF

37.4 KB Created: 2020-08-27 23:24:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29e0b8bfe1b8e5688148e6dc0f694dfa SHA-1: 088bbaaabe9bf7328344202baddac1e36a907481 SHA-256: 80e498fe8288b2ad665d75c884392146a36fd0d9242b3e08835a9cfc1e07ac02
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to a redirector service (ttraff.ru) disguised as song lyrics. This indicates an attempt to lead the user to malicious infrastructure, likely for phishing or to serve a secondary payload. 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=melliname+melliname+song+lyrics In PDF document text
    • http://tibur.improvplayground.com/uploads/1/3/1/6/131606457/dugixonofoli.pdfIn PDF document text
    • http://sevazo.clarkbonsaicollection.com/uploads/1/3/2/6/132682467/7042717.pdfIn PDF document text
    • http://files.atlantadentalanesthesia.com/uploads/1/3/1/4/131455883/najikenusapijevofifu.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/1/0429/5308/0991/files/dureraru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/schengen_visa_application_form_austria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2891/2040/files/puzejosotizodajenobiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/povepogisawopozug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8164/5736/files/sundari_penne_malayalam_song_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5409/4753/files/97548969384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7105/2707/files/guxuxutagexalexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3963/7155/files/jays_rumors_bleacher_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8757/files/clocking_in_and_out_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/57012521111.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_off00005452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5452 5228 bytes
SHA-256: a1cd993763471b78d3a202e1e36b820254502313608686a344f92180e6d5d337
font_01_sfnt_off00006611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6611 10928 bytes
SHA-256: 22344abe6c21b64a3a3da57f4e911f9613b31691275aedcdcbf309b3194d65eb

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