Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f434380d5299af3…

MALICIOUS

PDF

114.6 KB Created: 2020-08-08 23:58:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ad6c40444a55b7a28eab027cf156f199 SHA-1: 0fd3d2ed52e1139f580f98dfe585b97fe03bb6bb SHA-256: 6f434380d5299af39ad524900386ad90a2344aec44c304fcad6c3d9ac9af3a4e
194 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically 'ttraff.cc', which is flagged as malicious. It also hosts a large number of external PDF links, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The ML classifier strongly indicates maliciousness, and the embedded URL points to a known malicious redirector.

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=annex+10+aeronautical+telecommunications+pdf In PDF document text
    • http://files.solekart.com/uploads/1/3/1/8/131857445/50707.pdfIn PDF document text
    • http://files.brgri.org/uploads/1/3/1/4/131483067/7e38aa06f9a0d34.pdfIn PDF document text
    • http://files.simplybecause.shop/uploads/1/3/0/7/130775084/3539316c0.pdfIn PDF document text
    • http://files.villardeche.com/uploads/1/3/2/8/132815748/wagazisoguliki.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/1/0450/9502/6840/files/arteries_of_the_upper_limb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5370/2550/files/81135599809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/witikimevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/tunaxabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/what_language_is_discord_written_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/mary_balogh_dogovor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/rutudubijulawulike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6965/3663/files/mopatevujijati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/vajidotupapuxexuviwase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0640/2453/files/58108447346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/ionic_pro_air_purifier_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/46183731153.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 4

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_off000179d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x179D3 5552 bytes
SHA-256: 9502a31179ec0a3842c8f690fbfcb2458eaed1213c17f707b7190626f2871d61
font_01_sfnt_off00018ca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18CA8 14804 bytes
SHA-256: d65780488667661c21cc0e35c8a1ec2b6ce46686d44609a73b2ecc5a2faf131b

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