Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c389ab36d8cac0…

MALICIOUS

PDF

50.1 KB Created: 2020-08-22 12:09:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fbf373113ec9ee07118939bbdefe27ec SHA-1: b504c96e317fd8710fd54f8afb0daa34ba8ca966 SHA-256: 36c389ab36d8cac01b5c424792c80aafbf434e44bf1b6b8898460dc838f09276
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.ru/pify?keyword=england+championship+teams+form', is directly linked to a redirector. Additionally, the document body contains numerous links to Shopify domains, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also 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.ru/pify?keyword=england+championship+teams+form In PDF document text
    • http://tafali.elkcreekbaptist.com/uploads/1/3/0/8/130874629/7b11fb.pdfIn PDF document text
    • http://files.somethingblueweddingdjs.com/uploads/1/3/0/9/130969148/325269.pdfIn PDF document text
    • http://baduzigu.futurescholarslearning.com/uploads/1/3/0/9/130969352/talogapuxixinas.pdfIn PDF document text
    • http://files.bahainorthflorida.com/uploads/1/3/1/4/131438062/ruborumure-pujikiva-tobose.pdfIn PDF document text
    • http://files.hagmian.com/uploads/1/3/2/3/132302870/zifaradom.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/1/0440/8826/2821/files/58328314802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1909/0595/files/speed_velocity_and_acceleration_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8218/5893/files/technical_analysis_by_martin_pring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8969/files/30847136189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1407/0945/files/tidigata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/libijip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3404/9703/files/sakaruxubulabiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4245/5207/files/dajawupawodifejixazel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/xetoveker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5488/1175/files/canada_visa_application_form_in_oman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2846/3271/files/icy_veins_diablo_3_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3292/6615/files/renin_angiotensin_aldosterone_system_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9020/7139/files/kennen_ap_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8860/8418/files/mudorosusureritatawuj.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_off00007b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5E 5524 bytes
SHA-256: c7d61dc3d3d421b702808c87573669314c6aaa11f700951b9aec4210f1ee2b2c
font_01_sfnt_off00008e00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E00 14116 bytes
SHA-256: 214c72b854dc65b3620cedd525a5ab9c8a9b5ae0cdf698aa6e0519da19fef46e