Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a2c5ffb3de2bef7…

MALICIOUS

PDF

41.4 KB Created: 2020-08-05 04:09:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09214e95672243ad995a8866659e5065 SHA-1: e507bd98d4bd053f4f16e92f2ef557049fa9daf3 SHA-256: 6a2c5ffb3de2bef7988c36264644cc07d78acc2d717b224bf79e6ba463b2e1a5
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified as a free-download phishing lure. The primary redirector URL is `https://ttraff.ru/pify?keyword=antrenmanlara+matematik+2+pdf`. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting.

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=antrenmanlara+matematik+2+pdf In PDF document text
    • http://files.dknightwesmedia.com/uploads/1/3/1/8/131857920/zimudopadotadu.pdfIn PDF document text
    • http://files.donandmargieabroard.com/uploads/1/3/1/0/131071076/f2b818fc74ed0.pdfIn PDF document text
    • http://files.baanphitaktaweep.com/uploads/1/3/1/4/131437157/xetasu.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/1/0429/6150/2374/files/zepowizomolulab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2700/3549/files/pepsinogeno_funcion_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5706/files/97619254997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6226/2936/files/diwowotekukowegimulogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/94795466470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0906/3582/files/fekisaviwodefujokuzosekok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0342/8510/files/beduzakopanugudap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5326/1724/files/caballo_de_troya_9_can.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2473/6678/files/fileexport_paper_sizes_google_app_scipt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/cost_accounting_a_managerial_emphasis_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0550/1852/files/pci_simple_communications_controller_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5386/6408/files/67764752353.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_off000055aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55AA 5192 bytes
SHA-256: aa4ef77c8add7076073371fd90daaa718898632025b4e4e62b94135daea4c9b1
font_01_sfnt_off00006740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6740 16684 bytes
SHA-256: 4c5844a9147433268b61afebdd792e31ee23f34519d7c212e91911e5d382b826

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