Malicious PDF — malware analysis report

Static analysis result for SHA-256 3337d0eb75fc65da…

MALICIOUS

PDF

42.2 KB Created: 2020-08-19 03:46:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72c179186b4f305b0e2cf35d4dafa333 SHA-1: 7eaabe24c97e9f02c01e46f502ed0172a7e1d27e SHA-256: 3337d0eb75fc65da2a098cf2723df02f7ff065784b1d48492173881423824ce2
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious link identified is 'https://ttraff.cc/pify?keyword=festool+router+guide+plate', which is known to lead to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting it's intended to be presented to the user. The presence of a link farm and a malicious redirector indicates a likely attempt to distribute malware or conduct phishing.

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.cc/pify?keyword=festool+router+guide+plate In PDF document text
    • http://kamaze.shelleygentry.com/uploads/1/3/0/8/130813821/nusure-gokideboxiv-salite-noxalejegemalo.pdfIn PDF document text
    • http://files.lamatstudio.com/uploads/1/3/0/9/130969190/3217079d4424553.pdfIn PDF document text
    • http://kovetibon.tylerdiscoverslife.com/uploads/1/3/1/6/131606490/9916133.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7028/3173/files/banco_de_venezuela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4868/8033/files/41245641272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/98676756430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8670/7876/files/berserk_manga_chapter_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/calidad_de_vida_en_el_trabajo_juana_patlan_perez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/88075317933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/32601826391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1514/3587/files/mebevoruvape.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1B 4856 bytes
SHA-256: c0e2f2fbf3449e382b540e0a7ad8f4ab2597de07e53b50d35a16cbe541d315dc
font_01_sfnt_off00006cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB0 9832 bytes
SHA-256: d64e20a2e42b3f7fff719d15dbd47d284cb442d73077a429bb654934b64e6c78
font_02_sfnt_off00008e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E69 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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