Malicious PDF — malware analysis report

Static analysis result for SHA-256 52613aeed5eb0789…

MALICIOUS

PDF

62.4 KB Created: 2020-08-08 22:07:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb8d3db0e50f931baed9a932d747c5d1 SHA-1: 263b42609dd2cc51133533429f5fee768ef44e0a SHA-256: 52613aeed5eb078938100a2e37c9bc377a6528edd334a36f300a225e11ca39c0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to 'ttraff.ru', a known malicious redirector. The document also exhibits characteristics of a PDF link farm, suggesting an attempt to manipulate search engine results or distribute malicious links.

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=mesotelioma+maligno+pdf In PDF document text
    • http://files.graciesroom.org/uploads/1/3/0/7/130740017/jegoziwil.pdfIn PDF document text
    • http://wanipil.fastparcel.net/uploads/1/3/0/8/130814328/babomisilo_vebibasitibum_lakagiduxip.pdfIn PDF document text
    • http://files.gracecommunitycarshow.com/uploads/1/3/1/3/131380420/69c1a64c5.pdfIn PDF document text
    • http://files.millbrookrotarydirectory.com/uploads/1/3/0/7/130775846/d99ea.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/1/0430/0180/6997/files/73463314652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5698/7296/files/prime_minister_kamyab_jawan_sme_lending_program_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/18398754993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7231/4789/files/rebumokorefuxafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0237/8915/files/jipujivevipaxaleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/jumosiwakopabubobuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/60201262063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3581/files/medipudasejusare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/25145049565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujipipokumamidepuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/ff14_how_to_install_act.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1854/2504/files/ridafugiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5481/5640/files/dipebolagutut.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_off0000aeb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEB5 5272 bytes
SHA-256: 765659ed4e7b9b404dd2373f7b7799a98bc923625575b439d46eea4d0df08816
font_01_sfnt_off0000c0a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0A0 14156 bytes
SHA-256: ed5f09de7cb517c4c0ee5b1f2eaeec6a19ed936cc973d253133492839723425e

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