Malicious PDF — malware analysis report

Static analysis result for SHA-256 5896151bd895d2e8…

MALICIOUS

PDF

39.0 KB Created: 2020-08-08 02:47:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0cd4cca2b87190e9a7cd7c030c30048 SHA-1: 069b6274128731f820f490a2442e93cb6388bfd9 SHA-256: 5896151bd895d2e8b5d68082f9b25b2bc4c653ee373ab820e3a7242db75b492c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical redirector link to ttraff.ru, indicating a phishing or redirection attempt. The document body, though partially corrupted, contains text related to service manuals and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier strongly supports the malicious verdict.

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/wb?keyword=fisher%20and%20paykel%20e402b%20service%20manual In PDF document text
    • http://roxezo.completecritter.com/uploads/1/3/1/3/131379730/pevatoxer.pdfIn PDF document text
    • http://files.yfyliveguam.org/uploads/1/3/0/7/130776275/numelujan.pdfIn PDF document text
    • http://files.soarministries.org/uploads/1/3/1/4/131411688/nusoperikizuxo-dusave-foxamodozegom.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/1/0431/2439/2087/files/hamilton_beach_ice_cream_maker_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6626/9600/files/rexunukawizumabadix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0993/2440/files/wavetivefazekipor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/malumovexazikelago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/wobalonokisarov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0112/4760/files/nozove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/21890791879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6503/0309/files/how_to_update_g.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5058/2684/files/twin_bunk_bed_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9308/2783/files/dojexoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8839/3893/files/xamibupovugunonebuzexas.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_off0000566f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x566F 5996 bytes
SHA-256: 00f9060bd12da7e527169d9d040f6bcb08f4f77dee86970e62437975d899c773
font_01_sfnt_off00006ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC0 10744 bytes
SHA-256: eabe7a6ffbc0f719d35adff90fcd8df9a9d20028767d89433bce30dad9dd1031

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