Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d363a8d28a75ffa…

MALICIOUS

PDF

87.6 KB Created: 2021-10-31 17:52:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 4c1a43141b77f18d85ad6a62fa4512e8 SHA-1: 9b79c6987289024dfd5af5526e2c42777248b48d SHA-256: 0d363a8d28a75ffa051de4ba05bda5f390c2878ffceed495364323849603004c
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://allytemp.ru/uplcv?utm_term=the+beatles+i+am+the+walrus+album PDF link annotation
    • https://dalilak1.com/userfiles/file/25796872391.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616d8d8372aa4---xoterugiwez.pdfIn PDF document text
    • http://barsugo.com/ckfinder/userfiles/files/lemejejomoxopu.pdfIn PDF document text
    • https://duhocblueocean.vn/ckfinder/userfiles/files/jevonotedixulilafumave.pdfIn PDF document text
    • http://classicalgardenfountains.com/uplds/file/deneguralowa.pdfIn PDF document text
    • https://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/sipejogesanujekup.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161668686cb1b7---18962153884.pdfIn PDF document text
    • https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c1982a9d9---saroka.pdfIn PDF document text
    • http://slbreakingnews.com/ckfinder/userfiles/files/jolatogewizuxeb.pdfIn PDF document text
    • http://newgrids.com/userfiles/file/26831434970.pdfIn PDF document text
    • http://importfoodfair.com/userfiles/image/2021/09/file/75564291539.pdfIn PDF document text
    • http://tomasmrazek.cz/userfiles/file/6759358759.pdfIn PDF document text
    • https://zdravka.hlpr.hr/userfiles/file/vogujij.pdfIn PDF document text
    • http://unseretochter.com/images/file/pakebefolesanujazotix.pdfIn PDF document text
    • https://appvid.eus/userfiles/files/7684602869.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/98e5f2deecfa9d043a325e8f6a085372/15057342573.pdfIn PDF document text
    • http://dui-antidote.com/images/userfiles/file/94250956293.pdfIn PDF document text
    • https://dolupin.com/calisma2/files/uploads/89780759414.pdfIn PDF document text
    • https://alubiasdetolosa.com/files/galeria/files/pexojinufekidakadi.pdfIn PDF document text
    • http://tw-echen.com/uploads/files/202110241044103608.pdfIn PDF document text
    • https://nycsmindia.org/ckfinder/userfiles/files/xosifajixoxaliv.pdfIn PDF document text
    • http://grupposcorcia.it/userfiles/files/febazimixuxiripapi.pdfIn PDF document text
    • https://x-software.cz/data/file/tezogarisotufunijofepiza.pdfIn PDF document text
    • https://omprintandpack.com/userfiles/file/xaxavibeboji.pdfIn PDF document text
    • https://proia.bg/userfiles/file/77368249591.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_off0000e814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE814 21664 bytes
SHA-256: d869f2231279d589ae1ffd46760199adfac53aa51aae32a11ca225ae4aa4f9b8
font_01_sfnt_off00011f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F49 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13760 10436 bytes
SHA-256: def8c148179b201b262bfba56dfdde6a272a726dcc8dcbfd66632b3327516be5