Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd9ce39cf11428b8…

MALICIOUS

PDF

53.8 KB Created: 2020-08-23 09:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b3c30dea2df3804118b9bb29d06bcbbb SHA-1: 8ba6592ed81e101bf0cb06b7a9265767ed606c76 SHA-256: bd9ce39cf11428b8055d447bdd2c3a0fde5d3bfe91347876bc2c8b01a60b6126
194 Risk Score

Malware Insights

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

The PDF contains a deceptive link presented as 'Bolus infusion guidelines' that redirects to a known malicious domain (ttraff.com). This indicates a social engineering attack aimed at tricking the user into visiting a harmful site. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or content-spinning technique to obscure the malicious redirector. The ML classifier strongly supports the malicious nature of this document.

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.com/pify?keyword=bolus+infusion+guidelines In PDF document text
    • http://files.seatyourselfpodcast.com/uploads/1/3/2/6/132683292/revifora.pdfIn PDF document text
    • http://files.thescentedsheep.com/uploads/1/3/1/3/131398386/sarotezavakawu.pdfIn PDF document text
    • http://files.marshareevesart.com/uploads/1/3/0/7/130775870/laxef-refuv-ketuwosekulesud.pdfIn PDF document text
    • http://files.5oclocktravelandcruise.com/uploads/1/3/0/9/130969260/ridinodupunorutufije.pdfIn PDF document text
    • http://files.missminnesota.org/uploads/1/3/2/6/132695258/paduluj_jozuwosolimivop.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/1/0435/2367/0176/files/causes_and_effect_of_environmental_pollution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2408/0282/files/nagagit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9454/0439/files/14228003905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9831/6707/files/53466512905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3055/2474/files/vubopul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ninitegabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6962/6781/files/the_allyn_and_bacon_guide_to_peer_tutoring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8149/6744/files/vuzugeletabanewudedoju.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8041 4816 bytes
SHA-256: 890456288b0ceb93145f267721b0a192f459d509e0d803c46814b6539bcc185d
font_01_sfnt_off000090be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BE 10796 bytes
SHA-256: 852f12e182c8d0e82b84a2bea710b6019b9b668e7e0e25ea8bc12efd55c929e7
font_02_sfnt_off0000b533.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB533 16060 bytes
SHA-256: ae97ebdbf5cb6679ee3ae7f6f8963da9ec2437ada1f672a33085bc8cbe806833

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