Malicious PDF — malware analysis report

Static analysis result for SHA-256 692725fa49391609…

MALICIOUS

PDF

49.2 KB Created: 2020-07-29 18:27:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 943ac57a7e2703c188e210917be3c362 SHA-1: b725b1a07182a7dd1a6362a78407bcb094390cb1 SHA-256: 692725fa4939160938d26a915f9f650cf3dff5dc47875f0816ada88782aeaddb
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, appears to be a lure related to 'genetic algorithm matlab code for optimization'. The presence of numerous links suggests an attempt to distribute malware or phish for credentials through a link farm, likely initiated via spearphishing.

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=genetic+algorithm+matlab+code+for+optimization+pdf In PDF document text
    • http://files.allisonwiserpianist.com/uploads/1/3/0/7/130776755/6547324.pdfIn PDF document text
    • http://files.porthuronea.org/uploads/1/3/1/3/131379904/4666292.pdfIn PDF document text
    • http://files.ceso.on.ca/uploads/1/3/1/8/131871571/runuxapi.pdfIn PDF document text
    • http://files.lunalaila.com/uploads/1/3/0/8/130813409/sawanalodakegutup.pdfIn PDF document text
    • http://files.gentlemencallers.com/uploads/1/3/1/4/131453522/7285900.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/1/0434/2625/0917/files/xanuvojifugikezuvizifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4925/4041/files/63925455289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3545/9738/files/71336842235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/fowevox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/vikobawoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/pudawekimewexetifudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3668/0102/files/sibuzeguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4309/4677/files/witowizuxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/velamumosalotinosupaxolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/telivugatepikusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/94203982811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/81624635265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9376/2975/files/wewim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/regofejizor.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 5

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_off000078d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D0 5400 bytes
SHA-256: d368ffe51fe385d8a127d205e82d5ea9bf6c2afb0ec8fa2a301859d485ec954d
font_01_sfnt_off00008b04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B04 13844 bytes
SHA-256: fc2211703fbfa36d6772010c46884fae6471f61faea2d68fb279ae6f0b268cb3

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