Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aaa52f0cb53f5e9…

MALICIOUS

PDF

47.3 KB Created: 2020-07-28 17:04:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 22144376c9c8819c0d9d3aa9d188fe5d SHA-1: 5361274d53d8a7c20271b3244cc6e0e045dcac07 SHA-256: 6aaa52f0cb53f5e9d06a78a6cd8c0420719ead2cf6e0dc250d6e8d76b6dd769a
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'wkhtmltopdf' and a date, suggesting it might be a generated document. The primary malicious indicator is the redirection to 'https://ttraff.ru/pify?keyword=willpower+roy+f+baumeister+pdf', which is flagged as a 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.ru/pify?keyword=willpower+roy+f+baumeister+pdf In PDF document text
    • http://files.drachenspiel.ca/uploads/1/3/0/9/130969573/803dff98615f.pdfIn PDF document text
    • http://files.karenfornes.com/uploads/1/3/1/4/131408928/3ab08af.pdfIn PDF document text
    • http://files.arnoldinnovations.ca/uploads/1/3/1/4/131438692/tegukatemabijubib.pdfIn PDF document text
    • http://files.rosewriting.com/uploads/1/3/1/4/131410685/2020369.pdfIn PDF document text
    • http://files.britinn.at/uploads/1/3/1/4/131453484/5145911.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/1/0428/9835/8432/files/riginijulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4368/2469/files/basapidatida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2473/6678/files/sapotugewipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2336/files/63482051081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3462/files/tevowopubiretexugupadaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3832/6432/files/loseraxiwug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/gemudigijoruxazuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74195332560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1789/6089/files/zitojimowamugopujageme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/tifaxeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/sopinomukejolonamiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/53284297508.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
🗂 Part of campaign: britinn.at 3 samples

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_off00007bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBB 5308 bytes
SHA-256: 82dfa3c81f93b774669d1772b1c532d2f42544da85b78c4110b4fa5222692e13
font_01_sfnt_off00008dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD7 9992 bytes
SHA-256: 2614ae22afdf1da0b7ec7643b2ef2cfce379d1d26123169bf002ddad1dd992f4

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