Malicious PDF — malware analysis report

Static analysis result for SHA-256 f304bc6a8e40266b…

MALICIOUS

PDF

52.4 KB Created: 2020-08-27 23:03:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 23a3c75727834d4c98faf6374ebf93e0 SHA-1: f39832304e50f8c39a79b0223a445051e7f9338d SHA-256: f304bc6a8e40266bef3792d0b46284b148d415f51b20bcf3449bea9cc0416e13
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, many pointing to PDF documents hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=p5n-+e+sli'. The presence of a link farm and a malicious redirector suggests an attempt to lure users to malicious content or exploit search engine optimization techniques for malicious purposes. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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=p5n-+e+sli In PDF document text
    • http://tabetixa.gsm-eu.com/uploads/1/3/0/8/130874359/pegoradogud.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/1/0429/9200/9365/files/agile_project_management_for_dummies_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2441/1806/files/baricco_iliade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/59024557566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/jayz_the_prelude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6427/7657/files/74269470286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3116/6881/files/filemaker_server_17_installation_and_configuration_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/bunekataporipazolujidukij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0519/3885/files/additive_manufacturing_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0873/6936/files/socialdemokraterna_partiprogram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/sudujudonazabodipigow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3579/4340/files/south_carolina_driver_s_handbook.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
🗂 Part of campaign: floridaflightsolutions.com 3 samples

Related samples 1

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_off00007705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7705 4128 bytes
SHA-256: f6767c19c71281124c53013c58cfb1bfa3184878a1424f2e68f3b2aa01d213f5
font_01_sfnt_off00008501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8501 15796 bytes
SHA-256: ae11bc5dc489b27d10620f3cf0c9df815b14d783b26adb6a764ef65d6cacc6c5
font_02_sfnt_off0000b55b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB55B 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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