Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe93bf8b8892559…

MALICIOUS

PDF

43.2 KB Created: 2020-08-20 04:19:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4eeae5c8604d91db3dbe9b8258338be4 SHA-1: d57eecca9d52561e1ca845d8fddeb65c169575af SHA-256: afe93bf8b88925596b45a0dc304c0731b11bb13760401cc375a10c265697e6bd
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.ru/pify?keyword=convert+pdf+to+word+nitro+pdf+reader', is designed to trick users into believing they are accessing a legitimate PDF conversion tool. The file also contains a PDF link farm heuristic, indicating a large number of outbound links, many of which point to benign Shopify domains but also include other unknown domains.

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=convert+pdf+to+word+nitro+pdf+reader In PDF document text
    • http://files.laedgefilmawards.com/uploads/1/3/2/6/132695575/2eaa64983fc1045.pdfIn PDF document text
    • http://jotifajam.ramsclubswimming.org/uploads/1/3/1/3/131379808/daxipurefezes-daxisovus-pomujuduj.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/1/0432/0369/0660/files/listado_de_adjetivos_en_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5679/9648/files/properties_of_acetic_acid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6114/9850/files/16783664235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1146/5631/files/binuwuxiradenebipoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/20859352472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5493/0839/files/convertir_un_a_word_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9619/3686/files/riesgo_biologico_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1570/7551/files/lavenejufamawonijadoxop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7004/5864/files/34821421128.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_off00006c8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8E 4884 bytes
SHA-256: 69965c11397a7c6c5841a99302d30fca19e76541cba5cce1a5ff59ee77b3d5c9
font_01_sfnt_off00007d4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4C 10196 bytes
SHA-256: 11c07e23a80d0663dab31fac125a7d5bcf1e6bef5c31e43c0e8df0b9b51caff2

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