Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87af2411638c98f…

MALICIOUS

PDF

41.0 KB Created: 2020-08-11 06:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64f706d49cf6727cd47706ca58e1b601 SHA-1: 303548e2f48ee31da5d14696130a8aaa2a504187 SHA-256: f87af2411638c98f7189e2782506c35ed7991214fd01635ad63ca959e8df8167
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=agustin+fernandez+mallo+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a lure to a malicious site. No scripts were extracted from this sample.

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=agustin+fernandez+mallo+pdf In PDF document text
    • http://nekixenov.mystictouchemporium.com/uploads/1/3/1/0/131070993/butikuvobo.pdfIn PDF document text
    • http://files.amestours.com/uploads/1/3/1/4/131453902/boxesa-bavevoweworu-jikireliroxow.pdfIn PDF document text
    • http://welalogo.jasminelcombs.com/uploads/1/3/0/7/130775403/lerutajuli.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/1/0440/8446/1720/files/fanibaselavisetejuluki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3955/3696/files/59595535185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1621/4936/files/wofopizatiloz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/boragomikede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6462/2246/files/botikopajadedijefatodojok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0794/9475/files/relative_dating_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/sql_interview_questions_for_experienced_developers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9005/9157/files/5085536729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2702/9400/files/75960084516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8083/5482/files/sumokufapejoremujap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/suvigefufadubasamunuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/piwola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4445/4051/files/66817981879.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 1

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_off00006308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6308 5400 bytes
SHA-256: 41f5294bad6fbfe68683ed84869ffd47cf302bf6aa5770cdba88fc47402bbffb
font_01_sfnt_off00007554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7554 9904 bytes
SHA-256: 4aa450043decc91c30f691d12ef85956ce2ee4ed6636d9306c16d864dd2c5bcf

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