Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc3e23280b91d8c…

MALICIOUS

PDF

102.6 KB Created: 2021-08-28 12:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: f383b5afa54a576285f07fe01f476c40 SHA-1: 54a71e35f46ae1b995c8e8891765120ca1b8c804 SHA-256: 3bc3e23280b91d8ced526830cf0e5a7748c234fb5653a34cd962879a5aaefe4d
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • 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://crewmak.ru/uplcv?utm_term=ash+brock+and+misty PDF link annotation
    • https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/tepefogarabatuxobesezig.pdfIn PDF document text
    • http://www.kymenhome-etsinta.net/tiedostot/files/davozupedinumakad.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cce995e4e02---25667904471.pdfIn PDF document text
    • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec8d20af1d---84678849902.pdfIn PDF document text
    • http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/fojevovanomovujofobesolu.pdfIn PDF document text
    • https://www.smartfutureexpo.com/ckfinder/userfiles/files/72258578107.pdfIn PDF document text
    • https://uclerbaklava.com/resources/file/bawugakerajezamix.pdfIn PDF document text
    • http://tipkeo.com/js/ckfinder/userfiles/files/95102319120.pdfIn PDF document text
    • https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/a3b8778ad7b38252272d32c4eeb7ba81/pibapul.pdfIn PDF document text
    • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/oema3dkopfrjrofvu1af4jplu9/38529777561.pdfIn PDF document text
    • http://abwmercury.com/uploads/files/83085681826.pdfIn PDF document text
    • http://myphammonly.com/luutru/files/tokizefo.pdfIn PDF document text
    • http://emke.hu/uploads/ckfinder/userfiles/files/jijavakavezezavo.pdfIn PDF document text
    • https://dacola.com/upload/files/76238993808.pdfIn PDF document text
    • http://ipublicity.cz/data/file/bopiwajugizegikiru.pdfIn PDF document text
    • http://aire-limpio.com/img/editor/file/lojojosiwimobudajo.pdfIn PDF document text
    • http://seventyfirstclassof69.com/clients/60772/File/52563256745.pdfIn PDF document text
    • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ff05a8b8300---31088002826.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609a0f5852c26---luwedabavozemukevam.pdfIn PDF document text
    • https://burlingame.com/wysiwygfiles/file/pogoda.pdfIn PDF document text
    • http://terezmisszio.eu/files/file/febuwoxerevi.pdfIn PDF document text
    • http://polishingmarblefloor.it/userfiles/files/31510410598.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 extracted file (font_00_sfnt_off00012823.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00012823.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12823 19896 bytes
SHA-256: 3f8787cdb4087b37f93f6453753b057e711f59b01142a9568e3bf42f84e82d08
font_01_sfnt_off00015bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15BD6 10784 bytes
SHA-256: ede25ba7d44896c29f1eb8f07a20c9865de34b06fbee8fffd9ba3e5cfc4fe31d
font_02_sfnt_off00017491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17491 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1