Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab6ea0d2781c4880…

MALICIOUS

PDF

40.4 KB Created: 2020-08-12 22:13:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7bf710d9f6fdf2bbfbda1a7101cb47e3 SHA-1: 9085959ca514431d5288ad8a9af4d0c9f622d277 SHA-256: ab6ea0d2781c4880632aba97b73673a4e5bbed3e5c688ea13aabb70a633bece1
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many hosted on Shopify, designed to appear as legitimate PDF downloads. One critical heuristic identified a link to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to malicious content. The file is a PDF generated by wkhtmltopdf, commonly used for creating PDFs from web content, which aligns with the link farm technique.

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=administracion+de+recursos+humanos+r.+wayne+mondy+pdf+descargar In PDF document text
    • http://files.paylesslogistics.com/uploads/1/3/0/7/130776088/suferemaw.pdfIn PDF document text
    • http://files.basketballhelp.net/uploads/1/3/1/3/131398000/32ba2906f.pdfIn PDF document text
    • http://files.kelownaplumbingsolutions.com/uploads/1/3/1/4/131453045/9d2fb6f.pdfIn PDF document text
    • http://vewubinur.mobileperformancetherapy.com/uploads/1/3/1/3/131380404/9a38858c9b57ea.pdfIn PDF document text
    • http://files.anzty.com/uploads/1/3/1/3/131381376/4207680.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/1/0432/4913/9880/files/fosikeruxopaxikexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1732/3175/files/fizimitizopegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1570/7551/files/78525846631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4044/0471/files/vidar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6904/5926/files/58180685401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6241/8847/files/lesirifanoziruzoxuminuvev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2950/files/caterpillar_forklift_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3993/9994/files/88958350596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7973/8278/files/8055446023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/14715964795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/6764/9698/files/mugedovatoser.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4190/5050/files/86068377744.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 3

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_off00005da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA8 5752 bytes
SHA-256: d93acaa6964468520c0e8af8e67c0c184d2d3ba89e9f897da254381638118b8d
font_01_sfnt_off00007124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7124 10260 bytes
SHA-256: 7349479c3c2b50dd859255f406b0f3225fa40279e4ae7a74125478f42b3216c9

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