Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e0b68cc9341dfc…

MALICIOUS

PDF

38.8 KB Created: 2020-08-16 19:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0cefb3f0e5dd15c277323bdaa176a30 SHA-1: ff21a77c05b34bc7610ab812d6f91fcbae3de7b6 SHA-256: 36e0b68cc9341dfcd776fbaced9fcc814e3d2149a331460766f008239e79e79e
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users into clicking on further malicious content. The document body, though heavily obfuscated, contains the target URL and appears to be a lure related to 'alopecia areata'. The presence of numerous embedded links, many pointing to Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. The ML classifier strongly flagged this PDF as malicious.

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=alopecia+areata+en+mujeres+pdf In PDF document text
    • http://files.christinenanfra.com/uploads/1/3/2/8/132814147/8726a84a3d.pdfIn PDF document text
    • http://files.neetje.nl/uploads/1/3/1/4/131406303/najibudopusat.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/1/0430/6835/8807/files/tunetek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/31094530471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/cctv_camera_setup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/87617913377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2744/8476/files/jutapanejalum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/35279192788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7791/7085/files/barn_yarn_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7960/5147/files/que_es_el_capitalismo_periferico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8957/5588/files/31144952374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/agathiyar_mantra_download.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_off000059b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B7 5368 bytes
SHA-256: 2ce19aacab1f2b3838bc602f75a956cb485a48d0c9a57a802177117e4e3a8937
font_01_sfnt_off00006bdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDC 10220 bytes
SHA-256: 519b29d6883b7ad3435e5da2da55b83c4928cfb9ef13c7c00a04e768d7e3af1a

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