Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b269dc4e176ac2…

MALICIOUS

PDF

79.8 KB Created: 2022-04-14 11:35:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: c1200f8963d72b4a39bb4efc0bb5faa8 SHA-1: ac6d7fd2df49a3ebf4c1e5ea7a5505c1be05cc00 SHA-256: 72b269dc4e176ac27ba0181b9b00e78f7b020960484d15f986e1a7b3fe401f20
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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
  • 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://sunuf.co.za/YmrXLWy8?keyword=media%20probabilidad%20y%20estadistica%20definicion PDF link annotation
    • https://bevillelecomte.ovh/ckfinder/userfiles/files/40968098411.pdfIn PDF document text
    • http://heonlab.hu/uploads/files/munena.pdfIn PDF document text
    • https://aprenda-atdi.com/uploads/files/kazadinopub.pdfIn PDF document text
    • http://pinxedien.net/upload/files/vokejozi.pdfIn PDF document text
    • https://ph2020.org/FCKeditor/file/falotojusulobuxetazi.pdfIn PDF document text
    • https://repflex.servermill.com/files/upload/files/perap.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/161fb3459ece68---93722914537.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16221b9aaaa11d---vogewatedarunab.pdfIn PDF document text
    • https://bepcongnghiepphuchung.vn/userfiles/file/tajewivug.pdfIn PDF document text
    • http://goldmustang.ru/files/files/63644163646.pdfIn PDF document text
    • http://zlobek.dinobajka.pl/Upload/file/72013732525.pdfIn PDF document text
    • https://aawyx.com/sites/default/imageuser/file/wusikuzagor.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16205175b4330b---bosej.pdfIn PDF document text
    • http://lezeckastenakosice.sk/upload/files/91707412973.pdfIn PDF document text
    • http://sure2trips.com/bot/ckfinder/uf/files/57896621769.pdfIn PDF document text
    • http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/162253b4f600e6---2346463006.pdfIn PDF document text
    • http://conomiya.com/images/uploadedimages/file/96630298640.pdfIn PDF document text
    • http://smwiarus.pl/ckfinder/userfiles/files/53925887048.pdfIn PDF document text
    • https://toppelletmachine.com/d/files/babumejogepofoze.pdfIn PDF document text
    • http://lsneotek.com/ckupload/files/zorelafurutomukajadunepi.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bcf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCF2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD504 17448 bytes
SHA-256: 8efb83d3f4b40e78d6ef844598f73117e35e7f9585c932bdaa6bbb281cbd8f04
font_02_sfnt_off0001016c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1016C 10860 bytes
SHA-256: 5d110317275799966faf4978e32c40d5ca3c28bd79063ac3c0bdd5940fd82749
font_03_sfnt_off00011a6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A6C 16068 bytes
SHA-256: 6d636ebcb28a43c11a0b96216d988d0aaa25e428b847d4e039b2a2a6b6e27b6d

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