Malicious PDF — malware analysis report

Static analysis result for SHA-256 e98d2fbfb8d1bfff…

MALICIOUS

PDF

36.9 KB Created: 2020-08-10 08:07:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1074ae6a7997b6e5343107baa398739 SHA-1: ff7901f8462775610b058197022980a7eda15be4 SHA-256: e98d2fbfb8d1bfff1c74618db27c67bdb7aee4cd7c0d14437bcee1b76a1e73ad
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure via 'https://ttraff.ru/pify'. The document body and embedded links suggest a lure to download further content, likely malicious. The presence of multiple Shopify URLs, one of which is flagged as malicious, indicates a link farm used for SEO poisoning to attract victims.

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=cours+automatisme+ofppt+pdf In PDF document text
    • http://files.staufferlab.com/uploads/1/3/1/1/131164473/laxujugijav.pdfIn PDF document text
    • http://files.worldclasslanguagesolutions.com/uploads/1/3/0/7/130738971/5804023.pdfIn PDF document text
    • http://files.midstateinspectionservices.com/uploads/1/3/0/7/130776648/16d7c2b056524d.pdfIn PDF document text
    • http://files.lo-phi.com/uploads/1/3/2/6/132681219/betutejasowunabe.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/1/0432/0627/9332/files/dinakuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/ganavedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0346/1283/files/wewikato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6354/1917/files/ginanim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6323/0116/files/investment_science_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/retoxejudozexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2121/7442/files/alcoholismo_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1219/3438/files/98632696215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/zoo_tycoon_free_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5192/6183/files/76690633064.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 6

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_off00005450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5450 5060 bytes
SHA-256: ec409caeda677d20d8303f0d67e7be8c5b7dea9e6c841d4aa596cb0bf725e59d
font_01_sfnt_off0000656a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656A 9848 bytes
SHA-256: 0d2b5fe0dc33d491879bfdab83555086bb9d63eb260444c25aa2676d1e7e33b5

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