Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b50bd27511e74b3…

MALICIOUS

PDF

40.8 KB Created: 2020-08-28 05:06:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec1c0a992a9c32e46f0965c7404a406c SHA-1: cc02e4f296abc7944d3721920f4c47739ddecf9f SHA-256: 8b50bd27511e74b39e1adcc1903c4958851fa05701e1b31b496cf6233acd986c
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 URLs, many of which point to Shopify-hosted PDF files, likely for SEO manipulation or to host malicious content. One URL, https://ttraff.com/pify?keyword=pomme+de+touline+4+brins, is identified as a malicious redirector. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector suggests an attempt to lead the user to a harmful site.

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=pomme+de+touline+4+brins In PDF document text
    • http://mowezeg.roseandfernart.com/uploads/1/3/1/4/131407995/3a0dc1cfd669.pdfIn PDF document text
    • http://files.blankslatecoffee.com/uploads/1/3/0/7/130775228/polojebob-zisarebok-dusodu-fusurubajal.pdfIn PDF document text
    • http://files.noexcusesbrandshop.com/uploads/1/3/0/8/130874585/ropekixoteno_sewumaf_ropob_sizasodesifug.pdfIn PDF document text
    • http://mozom.margieburketours.com/uploads/1/3/0/8/130873790/bizeduves.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/1/0431/3153/5524/files/composition_centsimale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4486/2114/files/wokowitevepigujuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4649/2565/files/18102686098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/agenda_de_boda_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5258/9465/files/jiwelev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/isometric_grid_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/0967/7978/files/podojoxorarigomidisimiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37629755229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/xemurolejek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1029/3669/files/certificate_template_for_students.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000600a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600A 4988 bytes
SHA-256: 4d0f5f4d154f96cb362d3a3654391d9a252a8f116aaf633c8cee10ecadf0d030
font_01_sfnt_off000070ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EC 11540 bytes
SHA-256: a0e50bd83dea1ad505fc91129c70658efbb3e50e530ae81685afb6a64241686c