Malicious PDF — malware analysis report

Static analysis result for SHA-256 793b16d8d6b63bcb…

MALICIOUS

PDF

69.0 KB Created: 2021-09-11 20:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 5c656a04c3917c97a3cf6db0241ed0f5 SHA-1: dcc9283de94aa60276523c76c532a9e2d12c324a SHA-256: 793b16d8d6b63bcb62775149cf606cc37e22c2a177577b3f4b8c091627147dc4
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://sbs-group.co/userfiles/files/51432599525.pdf In PDF document text
    • http://police8coop.com/UserFiles/file/lujavosovumibelumexopiluw.pdfIn PDF document text
    • https://aihr-iadh.org/uploads/FCK_files/file/5184485800.pdfIn PDF document text
    • http://aluminial.pnh.pt/js/ckfinder/userfiles/files/36940571535.pdfIn PDF document text
    • http://mbfeed.vn/upload/files/fewatidovanalik.pdfIn PDF document text
    • http://ausafe.net/images/art/files/wujidusudebofolixebopora.pdfIn PDF document text
    • https://underworldgear.com/admin/images/fckImg/file/51240462586.pdfIn PDF document text
    • http://tko.wavedev.net/img/files/files/ponira.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/zukonukor.pdfIn PDF document text
    • http://vallovin.it/userfiles/files/xupudesejupipizov.pdfIn PDF document text
    • http://arcstema.com/userfiles/files/49522020618.pdfIn PDF document text
    • http://twilaw.com/files/files/raduvudasejozij.pdfIn PDF document text
    • http://kibbkw.com/uploads/files/gogisoruboxusananebor.pdfIn PDF document text
    • http://k3projekt.pl/uploads/userfiles/files/54798109558.pdfIn PDF document text
    • http://kondicionery-elektrostal.ru/upload_picture/file/20174288456.pdfIn PDF document text
    • http://ecovn.vn/uploads/news_file/12654862436.pdfIn PDF document text
    • http://mrtowing.ca/Lawyers/userfiles/file/gilunifow.pdfIn PDF document text
    • https://peterdegendt.be/file/wijexola.pdfIn PDF document text
    • https://akgoz.zemta.com/uploads/files/47618531806.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/l8oaa30u2485qhupeeotbrn990/dumeguxazom.pdfIn PDF document text
    • http://vinhthuan.vn/upload/files/gejifogiwojigo.pdfIn PDF document text
    • http://thebankcardservices.com/uploads/files/xegetiwabivenirunefajan.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134774d979de---mufefadovevenopomofexe.pdfIn PDF document text
    • http://villaelen.it/userfiles/files/mabuputavu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=hanuman+chalisa+jai+hanuman+gyan+gun+sagar+lyricsPDF link annotation
    • 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_off0000aeb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEB6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c6c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6C8 15536 bytes
SHA-256: ef1adc0cd9e83f8f52db4bcae3d6bbd92ae65dcf8f697a0398d10f56133e41c9
font_02_sfnt_off0000ee27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE27 10664 bytes
SHA-256: ec3a5be70f0f7fc4e93363637c2068110bfd8ee18f29ec16fbef251fe469c758

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