Malicious PDF — malware analysis report

Static analysis result for SHA-256 2184fcdb6f84b43f…

MALICIOUS

PDF

276.0 KB Created: 2020-08-08 23:10:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 968020355cd5e591f1a30744370f09a7 SHA-1: a25c548e1a9c746a3a03871ee0b8fcf79a846ecb SHA-256: 2184fcdb6f84b43f33003d1b5799b28d6b55d5ee1064059547830391a7e06826
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript and a critical heuristic firing indicates a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=bradycardia+guidelines+pdf' which is flagged as malicious. This suggests the document is designed to lure users into clicking the malicious link, likely to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bradycardia+guidelines+pdf In PDF document text
    • http://files.invisiblenm.org/uploads/1/3/1/4/131452961/1330997.pdfIn PDF document text
    • http://files.robirving.ca/uploads/1/3/1/4/131411474/lumagewe.pdfIn PDF document text
    • http://dufaj.ccmomc.org/uploads/1/3/1/3/131379732/tenanokutet-jukumid-gimapive-fimataregixef.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/1/0429/6730/2295/files/19866173494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1869/8400/files/analyzing_and_interpreting_scientific_data_pogil_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/vikutowukekoxulexezazafus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/nonesoxomakokizof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6228/8793/files/jamufuluduxagevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2260/6759/files/el_negocio_de_bienes_raices_en_mexico_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4149/6981/files/78448917095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42632515291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0654/7352/files/lavaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/femebimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/cetamina_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5089/9368/files/hipertrofia_de_adenoides_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/59850123973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7278/1478/files/schweser_notes_cfa_level_1.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_off0003fb1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FB1B 5476 bytes
SHA-256: 86ede85e483189516a32451a9a76f898e7ffdfb7cdac59494dc319e0894eb670
font_01_sfnt_off00040ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40DDC 17180 bytes
SHA-256: 531c292d2cfd9ea42b09927a6554bcc08a884c9ac34a419214a6812a0f44da17

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