Malicious PDF — malware analysis report

Static analysis result for SHA-256 62474bd6b6cc56a6…

MALICIOUS

PDF

81.8 KB Created: 2020-08-14 03:44:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8a9bb9b1fb03a3da40f35f530a220b9 SHA-1: 9854d28ee7c12c4fc9b4b9b3c8936b625051a57c SHA-256: 62474bd6b6cc56a69509373ad434da297b49b39c0499e1529b817b33854913e2
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to the URL 'https://ttraff.com/pify?keyword=free+mla+format+bibliography+generator'. The document body, though heavily obfuscated, contains this same URL, suggesting it's the primary lure. The ML classifier also 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=free+mla+format+bibliography+generator In PDF document text
    • http://files.belgianhareclub.com/uploads/1/3/1/8/131858791/tuxewafirodaw_gudefep_bevokopoboweten_kuvotalub.pdfIn PDF document text
    • http://kojonip.newincomastires.com/uploads/1/3/1/4/131407668/13105d174c8b.pdfIn PDF document text
    • http://dodipadi.operationfeedsjc.org/uploads/1/3/1/4/131437657/nakigitotuzol.pdfIn PDF document text
    • http://gugabox.gannonjwattscounseling.com/uploads/1/3/1/0/131069839/3409975.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/1/0432/9000/1572/files/gofotoperidavuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4051/7793/files/38903957683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/lincoln_welders_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6143/4773/files/deadpool_kills_the_marvel_universe_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/gafibetozumatixesisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3817/8470/files/stopwords._words_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2916/8282/files/vobinuwodesexal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3844/8548/files/after_2_gratis_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4679/5424/files/university_of_alberta_course_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8016/3227/files/nolope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8724/0095/files/35802557442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/greystones_guide_la_touche.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/foridonuvef.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_off000100e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100E2 5336 bytes
SHA-256: 2526f8ddf49c6e3f45fd58e90077eb0ec7012eeec76b16dab239747253980d94
font_01_sfnt_off000112ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112ED 11512 bytes
SHA-256: 66ebae61ebb7e0ff053bd55a18dc53c462c7fc99a8dce7fdf554f3dcd4db1e45

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