Malicious PDF — malware analysis report

Static analysis result for SHA-256 35726903f0a20c3c…

MALICIOUS

PDF

52.9 KB Created: 2020-07-23 05:18:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f790e47f8ed21f56e05dbc831e7e2045 SHA-1: 661fe957f70f07586e1df874f62bd1b03a117608 SHA-256: 35726903f0a20c3cd153b59baa8e91d805f9d4c950dbe5c68f8eaed43cf4ef0b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link redirects through 'ttraff.cc', a known malicious redirector. The document body, though heavily obfuscated, contains text related to financial statements, suggesting a lure. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=estados+financieros+pdf+que+son In PDF document text
    • http://files.treatsicecreamparlour.com/uploads/1/3/0/8/130814466/bc4b4a471f.pdfIn PDF document text
    • http://files.shsbusinessclass.com/uploads/1/3/1/0/131070307/bizofafowelimafapuf.pdfIn PDF document text
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.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/1/0430/4257/0402/files/duturinukoseze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5410/3713/files/pikiwovasujik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2953/6668/files/furowobafo.pdfIn PDF document text
    • https://selijowo.files.wordpress.com/2020/07/91646726011.pdfIn PDF document text
    • https://fudinusaxuli.files.wordpress.com/2020/07/22736481707.pdfIn PDF document text
    • https://wefefusijuro.files.wordpress.com/2020/07/74307708870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0321/3984/files/21344669576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/vesetejafenirubam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1311/1961/files/kotuzotenafij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23651487672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/88580301433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/lopiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5557/0341/files/bexagebenaxajuxasobodowur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0820/files/xisafugoruvefata.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2D 5080 bytes
SHA-256: 9b47ad690252f7bb630a3a8093d55e8254e084c0ccba9862620de5948ee7b5da
font_01_sfnt_off00008b79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B79 11064 bytes
SHA-256: f40e52ca862c72391370f0b9899ff53e86244cc876d7dfd0f2dc9ab3be0bbf4d
font_02_sfnt_off0000af60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF60 16164 bytes
SHA-256: 3afbc95f4a2677bf4c8b77bd7df62e4dbeb651db4b5e482cf97b58e472170d58

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