Malicious PDF — malware analysis report

Static analysis result for SHA-256 79643350a0dd0efe…

MALICIOUS

PDF

40.7 KB Created: 2020-08-18 23:31:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 304b6c9855151a7787d46b1313a3df4a SHA-1: cfd8827b1ea5dbfb5c8af826797fef41688ca632 SHA-256: 79643350a0dd0efec36242ea67b9c23d39047818eb55e94e9a0e980757b2783d
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a link farm designed to appear as legitimate resources. The primary redirector URL, 'https://ttraff.ru/pify?keyword=exit+interview+template+word', is identified as malicious. This suggests a phishing or scam attempt, likely using the 'exit interview template' lure to entice clicks. The ML classifier strongly indicates maliciousness, and the structure points towards a social engineering attack.

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=exit+interview+template+word In PDF document text
    • http://files.estellessweetitchblankets.com/uploads/1/3/1/4/131409170/tixavaxanepuluxuvit.pdfIn PDF document text
    • http://files.sharadslunchbox.com/uploads/1/3/1/3/131397973/tigib.pdfIn PDF document text
    • http://files.iriselainecottagebnb.com/uploads/1/3/1/3/131398279/lasev_fevajama_fitebaf.pdfIn PDF document text
    • http://fivujifud.janajedermann.com/uploads/1/3/0/8/130814328/a5be696243f94.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/1/0437/4672/1946/files/critical_role_campaign_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4965/files/46270040948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8970/files/16533947412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9867/6131/files/neoliberalismo_y_educacion_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1461/8262/files/60369557908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3237/8517/files/comparative_and_superlative_adjectives_and_adverbs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6221/5324/files/mikiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6439/1845/files/zudumesefilup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1639/6697/files/css_child_selector.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4434/7799/files/6th_grade_math_practice_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6624/4766/files/2002_toyota_tacoma_repair_manual.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_off000062f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F4 5104 bytes
SHA-256: 2416ee15c9982a91bb4356fea6989daa8387ead85bd6e8150f43dd53ae06b2a6
font_01_sfnt_off00007441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7441 9828 bytes
SHA-256: 1dceca920562af95e455a2de399aae110319f03e52f3b6b33aafdefc642fe5f1

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