Malicious PDF — malware analysis report

Static analysis result for SHA-256 c26ff4a6dc00e64c…

MALICIOUS

PDF

74.0 KB Created: 2021-03-23 05:58:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 643eb639c41ddb2e4026d57d13a87828 SHA-1: e4be2c7fe4bc714bc36d1a949f5db6f1a2006daf SHA-256: c26ff4a6dc00e64cd0bfc6f0053b8fd55784873db5368d224fea451f6f2ac8b4
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous external links, many pointing to SEO-optimized PDF farms, suggesting a phishing or content-scraping operation. The primary malicious URL identified is https://lozipotod.ru/wix?keyword=property+law+exam+questions+and+answers, which is likely used to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://lozipotod.ru/wix?keyword=property+law+exam+questions+and+answers PDF link annotation
    • https://s3.amazonaws.com/feborobegibew/28457356365.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/how_to_install_fuzzy_lookup_in_excel_2013.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464327/normal_5fe5b15a56d42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446399/normal_6013f4637e57c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481161/normal_6033026f8e180.pdfIn PDF document text
    • http://jomavuporu.22web.org/what_is_inferential_statistics_research_design.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/25220235372.pdfIn PDF document text
    • https://rijemozedez.weebly.com/uploads/1/3/1/4/131407135/wunegofo_tunajuto.pdfIn PDF document text
    • http://kuwufusef.22web.org/brother_mfc_j5910dw_maintenance_menu.pdfIn PDF document text
    • https://davixiwawelugez.weebly.com/uploads/1/3/4/1/134133028/e6cdf9005e4.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/uil_listening_skills_practice_tests.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501486/normal_604336a3bea9a.pdfIn PDF document text
    • https://mokenexub.weebly.com/uploads/1/3/4/4/134478104/pazotujigapisotumew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467274/normal_5fcb77ed4f322.pdfIn PDF document text
    • https://kutufexefe.weebly.com/uploads/1/3/4/6/134695169/0f31beca2177d9.pdfIn PDF document text
    • http://merutakozuxonu.22web.org/92783269831.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/cyberghost_vpn_for_windows_7.pdfIn PDF document text
    • http://lisolosesisav.22web.org/21376675237.pdfIn PDF document text
    • http://taxurofetizi.22web.org/riparian_zone_management_guidelines_tp148.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://30621b86-6952-4b41-80af-4d24d830bc7c.filesusr.com/ugd/122077_d411b2585e8c4afbb152ebaebcf35bee.pdf?index=trueIn PDF document text
    • https://ce722411-b424-48ee-ac00-b4ed8818edd9.filesusr.com/ugd/bff0de_a3aa8a37838a40a5a9b881bb5fa7ad79.pdf?index=trueIn PDF document text
    • http://xumugipetoje.epizy.com/musharaf_bangash_audio_songs_free.pdfIn PDF document text
    • https://f4b9ed98-44c1-44e6-9966-d9817cd43de7.filesusr.com/ugd/9ced5d_7e049a7271974fd1ae0a60e690c36a19.pdf?index=trueIn PDF document text
    • https://85fc0914-20e3-4f1c-be8c-de7e6f89f47e.filesusr.com/ugd/a44510_9a558beafa5b4384ae42cc894a8235a1.pdf?index=trueIn PDF document text
    • http://pobifewudej.epizy.com/23476514550.pdfIn PDF document text
    • http://bosurigazo.epizy.com/17926129319.pdfIn PDF document text
    • https://d21da297-2d1c-4020-882f-059d99c29dc9.filesusr.com/ugd/3724a2_471d8fa67d0e4fe6b05745efef80dc15.pdf?index=trueIn 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_off0000e216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE216 5492 bytes
SHA-256: 1b36dfa4b9ae902fd05ecbb7bff65d7caada3ef640eb4dc423904129c689cac3
font_01_sfnt_off0000f4c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C3 11096 bytes
SHA-256: 8f8a2f58c8c3443b8ce3a5b593aae54933557049c4fa14fac40d6354b049a402