Malicious PDF — malware analysis report

Static analysis result for SHA-256 018affc20a58cb1b…

MALICIOUS

PDF

46.1 KB Created: 2020-07-30 04:54:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4eda7d12c9c9f4d9802f2fe98aaf4b3 SHA-1: 94a178755db41ec9e5c4eccaa81a032d6aa26edf SHA-256: 018affc20a58cb1b3149f343414388e408fce3431d89e2cb5dc088198fec3d85
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 downloads, but they redirect to malicious infrastructure. Specifically, the link 'https://ttraff.ru/pify?keyword=beginning+digital+electronics+through+projects+pdf' is identified as a malicious redirector. The PDF also hosts a large number of external PDF links, suggesting a link farm or SEO manipulation tactic to distribute 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.ru/pify?keyword=beginning+digital+electronics+through+projects+pdf In PDF document text
    • http://files.lafta.org/uploads/1/3/0/7/130739883/8605898.pdfIn PDF document text
    • http://files.molliebing.com/uploads/1/3/1/4/131437671/xaduvesaxip.pdfIn PDF document text
    • http://files.jrsfineart.com/uploads/1/3/0/7/130776255/zonadikaroxiw_luxur_xexilidaviti_tagegegun.pdfIn PDF document text
    • http://files.plasticfreeswansea.com/uploads/1/3/1/8/131856398/1365680.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/1/0428/9835/8432/files/siwizobudavegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/zameniwezibepigojawota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2017/9864/files/defopuvidegetegaxofago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/nexidir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/45439970871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/keperuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1803/files/57492496542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/20004450085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7751/5929/files/zifiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47878122177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7021/6597/files/49263275132.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 3

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_off000075ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75AE 5424 bytes
SHA-256: 1dd5fba7594981b60cae75a0272e159412fd6fa89058236a38e9b81804451376
font_01_sfnt_off00008818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8818 10212 bytes
SHA-256: 2d192ebaab8fa08ef952aeb6780b9763f7bcd70366903898f39a36fb955a8268

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