Malicious PDF — malware analysis report

Static analysis result for SHA-256 04618d70ee456809…

MALICIOUS

PDF

39.5 KB Created: 2020-08-28 00:10:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74f10a538d86175d3575985e419620df SHA-1: fdf21308396ad32c7373914fac29d99f409d7f49 SHA-256: 04618d70ee4568097fbcb71865263455a705773bf7e6930df9a43ddc235697a7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. This suggests a phishing or scam attempt, likely using the 'free download' lure as indicated by the SEO-related heuristics. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the embedded links are the primary threat.

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=ordenar+frases+en+ingles+desordenadas+pdf In PDF document text
    • http://files.liverpooliti.com/uploads/1/3/0/8/130874240/a8ceda8cb811b.pdfIn PDF document text
    • http://maguvepe.keyboards.es/uploads/1/3/1/1/131163635/xukawizozusor.pdfIn PDF document text
    • http://nemakeja.greatlakesrodeo.com/uploads/1/3/0/7/130775971/557458.pdfIn PDF document text
    • http://pejunez.confluentdesign.net/uploads/1/3/2/8/132814930/906e99d971.pdfIn PDF document text
    • http://files.luvtheview.com/uploads/1/3/1/4/131437755/9341398.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/1/0433/0687/7080/files/81858120772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/takajadefubaned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/kebuzeked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6636/7895/files/lexerabejejedomuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2385/8850/files/finding_local_max_and_min.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/fozebakoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/56447059739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6443/5612/files/bangla_computer_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/doppler_effect_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7227/2037/files/ayushman_bharat_beneficiary_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7250/2425/files/28954612895.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 6

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_off00005a99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A99 5236 bytes
SHA-256: f030860a94a66d466b85555e81b6bff8c86d7a07a21c767bffb1be48279b0d38
font_01_sfnt_off00006c7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7B 10600 bytes
SHA-256: 4cfd968136d0a645d22fe714e4f6901fc61b630ed1b54012dde7f596b03f4822

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