Malicious PDF — malware analysis report

Static analysis result for SHA-256 5945028b99ed9fee…

MALICIOUS

PDF

52.9 KB Created: 2020-08-14 20:11:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b2634e09e882ea277523dac690b9bab5 SHA-1: 933e6c8fdd5d00cd5b0c34257fd0b3b22087f364 SHA-256: 5945028b99ed9fee8795c975db831c3c136d457e22c29164344ed026fd675223
210 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Link

The PDF contains a lure to install a browser update, indicated by the 'SE_BROWSER_INSTALL_LURE' heuristic and the presence of a call-to-action phrase. It also features a malicious redirector link ('PDF_MALICIOUS_REDIRECTOR_LINK') pointing to 'https://ttraff.cc/pify?keyword=browser+opera++for+pc', which is likely intended to deliver a payload or lead to further malicious activity. The 'PDF_SEO_LINK_FARM' heuristic indicates a large number of embedded links, increasing the likelihood of user interaction with malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=browser+opera++for+pc In PDF document text
    • http://files.ajaxaspenproperties.com/uploads/1/3/0/7/130740624/liletiwimuza.pdfIn PDF document text
    • http://files.heartwoodspeechtherapy.com/uploads/1/3/2/6/132682585/moxodekol.pdfIn PDF document text
    • http://files.edygies.com/uploads/1/3/2/6/132680855/sodetoruvukafado.pdfIn PDF document text
    • http://files.longroadsouth.com/uploads/1/3/1/3/131382274/bc871.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/1/0432/4248/7963/files/minneapolis_weather_report_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6329/5654/files/protein_synthesis_in_eukaryotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4532/9832/files/5935243688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8793/8211/files/mopefiletisadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4419/9829/files/91152360352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/waboxufewapobak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7744/9366/files/20452819072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/84323154042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7927/9527/files/vakazuverujured.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/78390776442.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 4

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_off00008a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A74 5116 bytes
SHA-256: ef52646e2d5c1c923bcef1e391c4d67a926e39093db9aa9bb088fd2d1fe25df6
font_01_sfnt_off00009c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C02 13852 bytes
SHA-256: 158faef6523d12dc7455c17c33476bc8dc92404f2611b7fed34aa026ca492bcd

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