Malicious PDF — malware analysis report

Static analysis result for SHA-256 49d14509d80db5b2…

MALICIOUS

PDF

43.3 KB Created: 2020-08-09 08:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ebca9f2c7476042033803da6ca2aa8d6 SHA-1: b5878f44e5745963e608bf76acf846ac232a7225 SHA-256: 49d14509d80db5b2248b0e4d5783aedcee107e304e80b2545ce46037eebe684a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic indicates a malicious redirector link to 'ttraff.ru', suggesting a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict. No scripts were extracted, but the primary attack vector appears to be the exploitation of user trust through a deceptive link farm.

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=kitchen+cabinets+standard+sizes+pdf In PDF document text
    • http://lowabis.roadgear.ca/uploads/1/3/0/8/130814017/dolegaguzasuzisab.pdfIn PDF document text
    • http://files.katebond.org/uploads/1/3/1/8/131872178/48cb54.pdfIn PDF document text
    • http://toxoz.hotelindasuites.com/uploads/1/3/1/4/131406082/tolubokabefozipuf.pdfIn PDF document text
    • http://tutijima.breadoflifehtog.org/uploads/1/3/1/4/131407406/wajisawirarag-xuvomapogavuput.pdfIn PDF document text
    • http://files.kacla.org/uploads/1/3/2/6/132681343/gezaro.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/1/0432/2826/6654/files/22066613753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8713/3860/files/98655088939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6186/9733/files/sovutezajisamapak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4386/2181/files/70584190807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9694/8382/files/barorreceptores_carotideos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5322/files/54758152728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2631/6455/files/skripsi_penyakit_jantung_koroner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8873/1546/files/xorafonedebitigejelama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3218/0893/files/regesumiwejubomurotutarut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/98748599827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/65403310852.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_off000066b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B5 5372 bytes
SHA-256: e0e2492e5d936379d0a176f8469b679fd372d46cb5375193774e97a1f18dd449
font_01_sfnt_off000078f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F8 12152 bytes
SHA-256: 22ca828c3eea056a0972e67fd8a2c93a4e27a64acc96bd74684cbc602dce95fa

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