Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced200135aedaec3…

MALICIOUS

PDF

42.6 KB Created: 2020-08-24 00:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d03dad12288a6f094e5953effed7cd44 SHA-1: 5eee43f763b16436400c9693aa31e93b7a3741f7 SHA-256: ced200135aedaec3cb7df3827dac6a03659526153bf0de8be14e95765453d7b3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links designed to appear as legitimate document downloads, but they redirect to malicious infrastructure. The primary redirector URL is identified as a known malicious link farm, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to deceive users into visiting harmful sites.

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=cancer+de+piel+diagnostico+y+tratamiento+pdf In PDF document text
    • http://gezutam.stfrancisbing.org/uploads/1/3/0/7/130776262/eced8d7.pdfIn PDF document text
    • http://files.cottageforrentontario.ca/uploads/1/3/1/0/131070469/sozifupoxojowi.pdfIn PDF document text
    • http://vemifime.harvardseducation.com.au/uploads/1/3/2/8/132814084/1257081.pdfIn PDF document text
    • http://files.neverlostestore.com/uploads/1/3/1/3/131380728/nimokixaraka_wakifol_wesaw.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/1/0429/8748/7385/files/highway_capacity_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/falazipufefiwiwawik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/frecuencia_respiratoria_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/teachers_day_speech_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6862/8630/files/formel_til_areal_av_sirkel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0070/8510/files/ucla_ranking_us_news_world_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6237/8152/files/demuxufaxaxijuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6567/8755/files/toduwopupufoninifi.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_off0000680f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680F 5484 bytes
SHA-256: fa3a5b8e495ae596a16d63d432f0d314077536962f2f55e4bd523d6fd9aa7e5b
font_01_sfnt_off00007aa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA3 10240 bytes
SHA-256: 1079104b3dd9a548ffc5cc8b0602337b21befa5e954710cc4e800cf9ea059438