Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e78b45ecf21b1fd…

MALICIOUS

PDF

123.5 KB Created: 2020-08-16 21:32:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5bfc2fafd950e20d7fb5a6f1ca94bed0 SHA-1: 0145a0dc61e5775996f38a3c29b856625a9e96cf SHA-256: 7e78b45ecf21b1fd57166ed0f66426ab32db837a1c53c12eaf1ed2a9a74ede69
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to 'ttraff.ru' as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector found in the heuristics. This suggests the PDF is designed to exploit users by presenting a seemingly legitimate document that ultimately leads to a harmful website.

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=valvular+heart+disease+guidelines+2017+aha In PDF document text
    • http://files.apostolicdeliverancefive.org/uploads/1/3/1/1/131163904/2916a.pdfIn PDF document text
    • http://bewalep.lifeasabowhunter.com/uploads/1/3/0/9/130969634/8942486.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/1/0433/9000/9502/files/41843500384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2804/4193/files/types_of_nut_bolts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6544/1430/files/bidurolobiwajufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/agricultural_engineering_projects_topics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7492/9319/files/39169314413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0108/8921/files/betujufoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/anorexia_y_bulimia_oms_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1642/files/high_voltage_breakdown_tester.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2924/9694/files/capitalism_socialism_communism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2669/2771/files/tunuwazam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3579/4340/files/muscle_gain_workout_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7005/4805/files/wusasesap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/88003415676.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_off0001a433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A433 5520 bytes
SHA-256: 20acd77f25bb0c7b83ef043bd5ea6ea190cacca2da7ce188567bd402cced760f
font_01_sfnt_off0001b6fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B6FE 13192 bytes
SHA-256: f330eced8fe912e27ea5305dc50f8a2ccaa528fc65391d33c7eb80f329cd83aa

Open this report in the interactive analyzer, or submit your own file for analysis.