Malicious PDF — malware analysis report

Static analysis result for SHA-256 d078a9e4ac92e203…

MALICIOUS

PDF

173.4 KB Created: 2022-03-18 14:09:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: b81f8d39659d43f380f0292c33836275 SHA-1: 8074a28bf78873f48c6caa64d64c307e199ed170 SHA-256: d078a9e4ac92e2032ebed0c4c50a14b1088b6a6511c820c2f5dc4221ff2f59dd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7548

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 http://postelezmasivu-brno.com/ckfinder/userfiles/files/wabojiwimalikud.pdf In PDF document text
    • http://theexplorerthai.com/userfiles/files/lemuxepipovenurenure.pdfIn PDF document text
    • https://pacientes.quiroser.com/UserFilesQUI/file/77950509147.pdfIn PDF document text
    • http://nevacomposites.com/public/kcfinder/upload/files/zexezonemu.pdfIn PDF document text
    • https://www.nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/92188710847.pdfIn PDF document text
    • http://galerie45.com/userfiles/file/wixorixopab.pdfIn PDF document text
    • http://seamacros.com/upload/file/99266004346.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/ca3854f4c6935f15c5eafec20208ff28/wubiwofazetutegibujoz.pdfIn PDF document text
    • https://steyr-mannlicher.hu/admin/kcfinder/upload/files/tivavogolibodonezixadaru.pdfIn PDF document text
    • https://negaratoto.com/contents/files/zazupiwuxoza.pdfIn PDF document text
    • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16226ea61cc7c5---77993395581.pdfIn PDF document text
    • http://www.alexgis.com/siteuploads/editorimg/file/77726466422.pdfIn PDF document text
    • http://billsky.ee/files/file/37694467605.pdfIn PDF document text
    • http://contextuae.com/resimler/files/44471501917.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/69d6ac0039802e6c17a66cb65965927d/89147565673.pdfIn PDF document text
    • http://drkoopman.nl/cmsimages/file/38734741113.pdfIn PDF document text
    • http://music-souq.com/uploads/file/54568904587.pdfIn PDF document text
    • http://111-orte.com/testarea/cwsCMSlight/media/files/kanenopurewubuduvafeter.pdfIn PDF document text
    • http://tomboy2.com/images/library/File/40451569633.pdfIn PDF document text
    • https://cancelaria.pl/galeria/file/12764267970.pdfIn PDF document text
    • https://www.insideaccess.lk/assets/js/kcfinder/upload/files/ruwavulijusepokudunorud.pdfIn PDF document text
    • http://www.siphonicflowmandiri.com/upload/files/buvugogibipa.pdfIn PDF document text
    • http://exito-opakowania.pl/userfiles/file/67541819646.pdfIn PDF document text
    • https://didacostruzioni.it/userfiles/file/95924566050.pdfIn PDF document text
    • http://brkvinc.com/userfiles/file/megufezune.pdfIn PDF document text
    • http://lnyuanzong.com/uploads/files/20220201151940.pdfIn PDF document text
    • http://avrasyated.org/nedmin/production/ckeditor/kcfinder/upload/files/15503121336.pdfIn PDF document text
    • https://ariconium.cz/webpagebuilder/ckfinder/userfiles/files/lidezavaloburisufesuxon.pdfIn PDF document text
    • https://wendi101.com/userfiles/file/86210697434.pdfIn PDF document text
    • http://gyn-ordi.at/myPix/file/poforijasowirobubum.pdfIn PDF document text
    • http://ingenierie-mont-blanc.fr/kcfinder/upload/files/zuziruj.pdfIn PDF document text
    • http://ssmsuits.com/kcfinder/upload/files/rudoreba.pdfIn PDF document text
    • http://masterref.ru/editorfiles/file/83787261299.pdfIn PDF document text
    • https://101doctor.com/uploads/ckfiles/files/6213f109c7e4a.pdfIn PDF document text
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16226dbb4cecf5---10724639280.pdfIn PDF document text
    • https://sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/54994748468.pdfIn PDF document text
    • http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/42441630766.pdfIn PDF document text
    • https://securitydm.eu/slicice/file/66725117215.pdfIn PDF document text
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/935f8c32a67052875442d368f7fdabdc/53473850205.pdfIn PDF document text
    • https://shinaltd.ru/images/file/vabebedefeporas.pdfIn PDF document text
    • https://phuquiland.com/upload/files/fubepobok.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=short+formal+dresses+for+tall+juniorsPDF link annotation
    • http://theblare.com/image/upload/file/49198492146.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_off00024218.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24218 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00025938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25938 10924 bytes
SHA-256: ac95301cc1ebfd5e35f0eae57806ee7806275a3117bcc3e636f53e79f330695a
font_02_sfnt_off00027247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27247 18996 bytes
SHA-256: 4ac45e3a8f0de1d3c68b1d0b590e49a67607bfcf3bb8d8857fe672fae8327e75