Malicious PDF — malware analysis report

Static analysis result for SHA-256 74bb969f8828e8ec…

MALICIOUS

PDF

32.1 KB Created: 2020-08-15 16:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85a34437c5c124ecb7e721a67a5fdf64 SHA-1: 2025424364c7462011a9de0cda2474169a25ba3a SHA-256: 74bb969f8828e8ecc63e6ebc35e70036376ffa551c7abc0c906d293da3526e22
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate document downloads, but they redirect to a malicious SEO link farm infrastructure. The primary redirector URL is https://ttraff.com/wb?keyword=fisica%20nuclear%20y%20de%20particulas%20ferrer%20pdf, which is part of a known malicious redirector. This indicates a phishing or scam attempt to lure users to malicious content.

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/wb?keyword=fisica%20nuclear%20y%20de%20particulas%20ferrer%20pdf In PDF document text
    • http://fozoda.yellowhouseherbs.com/uploads/1/3/1/3/131379803/delibadegojud_jojase_jogikipizegasar_pavef.pdfIn PDF document text
    • http://maduwemop.sacredquest-peru.com/uploads/1/3/0/7/130776485/071fd.pdfIn PDF document text
    • http://files.myabigails.com/uploads/1/3/1/4/131453902/lumekadi.pdfIn PDF document text
    • http://files.anchorchurchelpaso.com/uploads/1/3/2/7/132740905/tunudaji_fafutifekuda_kazofefef.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/1/0431/8383/3249/files/kijowabapifogarawel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/lidosikozosiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4541/9173/files/18738754671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2541/3782/files/bopogukixutudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2216/1832/files/anonymize_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0986/7929/files/paxifemekaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9266/3702/files/tonodurosixeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5407/9910/files/98697552157.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 4

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_off00004131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4131 5204 bytes
SHA-256: b3b0999159e182b3e2801c3c83a83b424359466ae900b92c209f23808799e9ff
font_01_sfnt_off000052f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52F0 9464 bytes
SHA-256: 0ee052f4d5e97bf45500c4fd1d3e63c6ee8cabf15e2eaed628e0657664167fe9

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