Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7d4bb103414223…

MALICIOUS

PDF

76.5 KB Created: 2021-09-19 06:51:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: dc657c15afb0a625ed094e866e823d50 SHA-1: 7d9f221866e04acde7dffa5e2663808f494163b3 SHA-256: cd7d4bb1034142233268b41ce8850739b6b0e44e87821d8510a76476d43f0650
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9827

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://garglob.ru/uplcv?utm_term=avakin+mod+menu PDF link annotation
    • http://cancercareresearch.com/userfiles/file/50993974997.pdfIn PDF document text
    • http://plechotice.sk/tmp/file/8335642970.pdfIn PDF document text
    • http://olympiad-bigben.ru/ckfinder/userfiles/files/naxotogemivobojunid.pdfIn PDF document text
    • http://ehomerealestate.org/images/file/81969133045.pdfIn PDF document text
    • http://nato-denkmal.de/uploads/file/todemosuki.pdfIn PDF document text
    • http://deleeuwputten.nl/site/data/ws/files/welijawarazogaturuku.pdfIn PDF document text
    • http://sdes.in/uploads/sopevotaxibav.pdfIn PDF document text
    • https://xn--p3t29jo1ed4o4xw.tw/upload/files/babasafadudurisipojaditex.pdfIn PDF document text
    • https://doktor-ara.com/userfiles/files/99103888199.pdfIn PDF document text
    • http://funagamex.vn/PhuongNamGroup/userfiles/files/4791322248.pdfIn PDF document text
    • https://almuhja.net/ckfinder/userfiles/files/bejopudari.pdfIn PDF document text
    • https://we-plus.tw/ckfinder/userfiles/files/gelumavupuvomemukaka.pdfIn PDF document text
    • http://sewakendragroup.com/userfiles/file/42445266545.pdfIn PDF document text
    • http://4x4autok.hu/userfiles/files/89826663720.pdfIn PDF document text
    • http://cgmorenanews.com.br/ckfinder/userfiles/files/5940332892.pdfIn PDF document text
    • http://czernavendeghaz.hu/admin1/file/80603865758.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/b8130aa0aa7531a255ecc984a318ec25/63239073589.pdfIn PDF document text
    • https://senesi-sklad.cz/userfiles/file/90713722519.pdfIn PDF document text
    • http://meuble-tunisie.com/userfiles/file/gonefaleviwot.pdfIn PDF document text
    • http://somkuthyoptika.hu/editor_up/nudadumabazeluketanebe.pdfIn PDF document text
    • http://feuerwehr-mittenwalde.de/mediathek/files/40933657741.pdfIn PDF document text
    • http://doingthing.com/downloads/blog/geust/files/71394647006.pdfIn PDF document text
    • http://lobi.md/userfiles/file/ketejevevezi.pdfIn PDF document text
    • https://pastravariaizvoarelebratiei.ro/images/file/4754436413.pdfIn PDF document text
    • http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/bufidore.pdfIn PDF document text
    • https://tennis94.fr/img/pics/files/suzezus.pdfIn PDF document text
    • http://pc75.net/upfiles/file/1630747405.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC676 18064 bytes
SHA-256: cd0fd4e8ce95e02cc6227bac60c34beffb6c698f541bc4844a753d2e6ac3c0ef
font_01_sfnt_off0000f599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF599 10236 bytes
SHA-256: 28c4fbe9bcaba2b821468491efdc5984a5b573b267da773eaf5972f5f63bbe37
font_02_sfnt_off00010c8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C8F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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