Malicious PDF — malware analysis report

Static analysis result for SHA-256 08de20470b0a2407…

MALICIOUS

PDF

44.2 KB Created: 2020-08-02 12:26:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c12a59f01535990ddc3a5ce76ae6fc57 SHA-1: 1a9b90a4154e09e80b7046d115d59aa5f37eb153 SHA-256: 08de20470b0a2407a615ee6996d26068ed1cf5fd98a3dd7c58b59c0794167c43
194 Risk Score

Malware Insights

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

The PDF contains numerous links to a redirector service (ttraff.ru) disguised as a free VPN offer, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the embedded links and the heuristic firings strongly suggest a malicious intent to redirect users to potentially harmful 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=are+free+vpn+safe In PDF document text
    • http://files.valleywestphotographyclub.org/uploads/1/3/1/1/131163902/nifakuxufatikodaxux.pdfIn PDF document text
    • http://files.eathorpepollherefords.com/uploads/1/3/1/4/131437626/e4e521e336d.pdfIn PDF document text
    • http://files.teagan-rose.com/uploads/1/3/0/7/130738554/kozudesijobigelafava.pdfIn PDF document text
    • http://files.aromacatering.net/uploads/1/3/1/3/131398195/7141974.pdfIn PDF document text
    • http://files.lorialbertdesigns.com/uploads/1/3/1/3/131384286/c0a8102dd3f9d.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/1/0434/4568/2328/files/lefaxanetogasanaketema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6134/4406/files/85016072143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/89726449447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/python_import_module.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/74194644779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4244/6229/files/wufife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5359/4277/files/nirofizuduji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/loduraxozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9459/files/87681701362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5062/3385/files/movalugedetogoxevoxubotiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0599/3375/files/50881054535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/50740755287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/56088433453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4571/5109/files/pisagatus.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_off0000701d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701D 4912 bytes
SHA-256: 80acee001605edd246bdba55f9e054166f89fd6c4ea7343cf080fec27f001149
font_01_sfnt_off000080ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EE 10272 bytes
SHA-256: 6056eecbf5ec1cbdd44239bc63ea3e8ec9dbeafb89a479f19466d3ba066c02b6

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