Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ff446722e425268…

MALICIOUS

PDF

45.2 KB Created: 2020-08-04 09:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a08ea8baa606350c0c1cfc40b642328f SHA-1: 5d07f3b812e2ba9823a2030896c247a02113fa95 SHA-256: 3ff446722e42526887c591527c000cdd6e0e5a694870d05a15b79f844a8c778d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=hernia+hiatal+pdf+medigraphic'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many pointing to Shopify domains. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to medical information.

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=hernia+hiatal+pdf+medigraphic In PDF document text
    • http://files.dollarcannulaclub.com/uploads/1/3/1/3/131381237/vopukimivipogoxuveda.pdfIn PDF document text
    • http://files.mybotoxboutique.com/uploads/1/3/0/9/130969572/xafoxavuza_jozijunepap_bikufewuxuzidig_retenolakamaje.pdfIn PDF document text
    • http://tomuxa.onurokcal.com/uploads/1/3/2/7/132710797/33050b5df35c46.pdfIn PDF document text
    • http://serisofug.wedding-flowers-perth.com.au/uploads/1/3/0/7/130775934/9376615.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4963/8295/files/31216866674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7133/0709/files/auto_transport_bill_of_lading_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44484222312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4873/9740/files/82002926981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/rinufemidikipituwotawiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3077/files/ar15_speed_loader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0426/3585/files/python_list_to_string.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9671/6952/files/kajuvubexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/89785011071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/fitefuzazuximetop.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E6 5028 bytes
SHA-256: 39780a69c7ce430b5ee0e664228985f107aba54cb86d0eae8101a98af2a58485
font_01_sfnt_off000077ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CA 10024 bytes
SHA-256: 4e2a93f9f2203ebe162a8ca1fea876d9ad836413f3afaddef48a0ed68123b849
font_02_sfnt_off00009a29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A29 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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