Malicious PDF — malware analysis report

Static analysis result for SHA-256 67f784ffff73697a…

MALICIOUS

PDF

45.6 KB Created: 2020-08-13 16:46:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bda620dc5fc09d18abf981321e4e642a SHA-1: c3602d16f010764dd438b6fa5db9666687573b9a SHA-256: 67f784ffff73697a742d5c9993df9235baa7f4d945855709236fe1abe406213c
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to redirector infrastructure designed to obscure the final malicious destination. The primary redirector URL is `https://ttraff.ru/pify?keyword=benim+hocam+tyt+co%25C4%259Frafya+ders+notlar%25C4%25B1+pdf`, which is flagged as malicious. This indicates a phishing or scam attempt, likely using a lure of free downloadable content to trick users into visiting the malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=benim+hocam+tyt+co%25C4%259Frafya+ders+notlar%25C4%25B1+pdf In PDF document text
    • http://files.centralcoastrxfirecouncil.org/uploads/1/3/1/1/131163898/d89c07b2.pdfIn PDF document text
    • http://files.westlakeffa.com/uploads/1/3/1/3/131383541/sarolunilip.pdfIn PDF document text
    • http://files.ourhousecallvet.net/uploads/1/3/1/8/131857071/semosi-kimixasobal-baxokuw.pdfIn PDF document text
    • http://files.annishealinggarden.com.au/uploads/1/3/0/7/130776864/kuxafixogudaruwuje.pdfIn PDF document text
    • http://pokebiba.hikingforthescaredycat.com/uploads/1/3/0/7/130775162/cd6026.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/1/0429/4855/9004/files/wilumajapine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/buwijonijav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/movulufuninaboxoxak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9304/1053/files/95946799714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/5793360466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6523/6895/files/zizurunabeveje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0860/4829/files/menabik.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_off00006ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA4 5808 bytes
SHA-256: d02358994b6119da4a3ad624a4f591448dbbf96683ce07335ca04a7995711672
font_01_sfnt_off0000803c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803C 11280 bytes
SHA-256: ac9e481999a17b63e0a820a2bff268361da438555913243d386fd15ae051797b

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