Malicious PDF — malware analysis report

Static analysis result for SHA-256 725573299cb66a31…

MALICIOUS

PDF

42.0 KB Created: 2020-07-31 21:39:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e16e3a8454946ff56bad205ac3527e2e SHA-1: e781681f31d3c81663f0a9ff6245ef900a01b6a9 SHA-256: 725573299cb66a314a1717ede46c2a34c097cbd0e19504c1a88df53082ff2a0f
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many pointing to a redirector infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, contains the same redirector URL and appears to be part of a link farm strategy. The primary malicious URL identified is https://ttraff.ru/pify?keyword=total+gym+2000, which is likely used to redirect users to further malicious content.

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=total+gym+2000 In PDF document text
    • http://files.stephenmwalsh.com/uploads/1/3/0/7/130775231/simepukap-gikolumezofatu.pdfIn PDF document text
    • http://files.susannej.com/uploads/1/3/0/7/130739239/7845282.pdfIn PDF document text
    • http://files.kayakanglersofmissouri.com/uploads/1/3/0/8/130814718/1557884.pdfIn PDF document text
    • http://files.lynnmiriamceramics.com/uploads/1/3/0/8/130813988/3330.pdfIn PDF document text
    • http://files.spilt-salt.com/uploads/1/3/0/7/130775828/916198.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/1/0432/4891/0498/files/6811557264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/33433180151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1344/6564/files/dobuwavazarexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejupabofutub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3807/9138/files/56743198047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9423/files/60889051986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4141/5580/files/77642850616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5453/0709/files/57479943522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/20979100523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3796/4960/files/12884192767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7174/files/jukaxugatujinikofufav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8774/1607/files/xufesewarizonige.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_off00006730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6730 5056 bytes
SHA-256: 2faba32cee8d2b2218c484fc3047b2d53351b44ef40c88c0eead493a5c9cf079
font_01_sfnt_off00007860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7860 10296 bytes
SHA-256: b2fef79782da58abbafaed67668aa351be5d9f7906c01b2ac5341f8b353bf2a1

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