Malicious PDF — malware analysis report

Static analysis result for SHA-256 af34cfd15e3f46bd…

MALICIOUS

PDF

42.4 KB Created: 2020-08-06 23:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42a87e42f8d149194b3d658f2e037835 SHA-1: 2c5760940886b7699a08e415ad287cf66cfce9db SHA-256: af34cfd15e3f46bd3f86d19a914119c3891acd5582100fd426b1a647c15d3e16
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=administra%25C3%25A7%25C3%25A3o+por+objetivos+pdf'. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution.

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=administra%25C3%25A7%25C3%25A3o+por+objetivos+pdf In PDF document text
    • http://files.mhschoirs.com/uploads/1/3/2/6/132683000/e4279.pdfIn PDF document text
    • http://files.muniakfamily.com/uploads/1/3/0/7/130775813/povijifapeza-kimajuvilesot-sijelusivisibaw-zomokiwixanuki.pdfIn PDF document text
    • http://files.matusnursingreview.com/uploads/1/3/1/1/131163832/kogiwux.pdfIn PDF document text
    • http://rovibane.queenbeecoffeeco.com/uploads/1/3/0/8/130813821/tawipipe.pdfIn PDF document text
    • http://files.u3ahavelocknorth.com/uploads/1/3/0/8/130814308/3352304.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/94393320092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0718/8898/files/24504940496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/rupepapajas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1883/0503/files/xatimozetibib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mozesuseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7952/2714/files/protocolos_adicionales_a_los_convenios_de_ginebra_de_1949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2452/3169/files/88267748138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/16801637052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9827/0885/files/ielts_writing_task_1_model_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/critical_thinking_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/81555899780.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 8

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_off00006250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6250 5920 bytes
SHA-256: fb6c432b61de26a4878c28bf9e33e69224d713be95e2301c64f6e415d3f09940
font_01_sfnt_off000075d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D6 12228 bytes
SHA-256: b6b20f796e2775f3bb3513c21453f51b139fd08c95901ecb7f430b17b656cea8

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