Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dddcb0773037254…

MALICIOUS

PDF

81.2 KB Created: 2022-04-13 09:15:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-25
MD5: 55fd40bd3024663221494904d96ff48f SHA-1: 4072c8f594fb60385282c49684e1e57f97f7357a SHA-256: 3dddcb0773037254944c466e68ab7326f1a35c40108bbf49de30d4dfcb8e3035
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://yoyep.co.za/YmrXLWy8?keyword=educational%20psychology%207th%20edition%20woolfolk%20pdf PDF link annotation
    • http://35ct1.com/images/ckImageFiles/files/93569388133.pdfIn PDF document text
    • https://gemojozagi.weebly.com/uploads/1/4/1/3/141332471/teginemozafiwusiloz.pdfIn PDF document text
    • http://intersonik.eu/upload/files/nulerug.pdfIn PDF document text
    • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161f9e4855ca7c---pozatijatajutevebewiwa.pdfIn PDF document text
    • https://panibatolabixoz.weebly.com/uploads/1/3/4/7/134720971/8494118.pdfIn PDF document text
    • https://romalasergroup.com/userfiles/files/gonevadofitusewisonotod.pdfIn PDF document text
    • https://dbjadow.pl/attachments/file/85491563504.pdfIn PDF document text
    • http://evolution-dev.com/file_media/file_image/file/33379893227.pdfIn PDF document text
    • https://iphone-odklep.si/vsebina/18882114487.pdfIn PDF document text
    • https://balomufe.weebly.com/uploads/1/3/4/5/134594694/bizasetuserivezafap.pdfIn PDF document text
    • http://odontoflash.eu/userfiles/files/37299897068.pdfIn PDF document text
    • https://sitatovap.weebly.com/uploads/1/3/1/4/131438195/damofezaderitof_berukeliwoneb_belemo_panukalewo.pdfIn PDF document text
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/158ee95ef28eec76232a55c78d37d40a/59164526465.pdfIn PDF document text
    • http://cosplay2015.nim.ru/userfiles/files/relepeluj.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/1627551f0dbbd4bd30c6cd79613ee4df/bagufulolumu.pdfIn PDF document text
    • https://www.v-investor.ru/kcfinder/upload/files/35372002273.pdfIn PDF document text
    • https://bododomeliba.weebly.com/uploads/1/3/1/4/131408614/rejinukexozab.pdfIn PDF document text
    • http://timnhanhonline.vn/upload/files/43711610566.pdfIn PDF document text
    • http://pujcovnanaradi-tvarozna.cz/userfiles/files/povikoko.pdfIn PDF document text
    • http://sushrutproctology.org/ckfinder/userfiles/files/41414535675.pdfIn PDF document text
    • http://kstarsmall.net/userfiles/file///99830138534.pdfIn PDF document text
    • http://kovtec.pl/eurostyl/photos/file/pometod.pdfIn PDF document text
    • http://bscartridge.com/pic/lukexufepenew.pdfIn PDF document text
    • http://mathcountsoutreach.org/userfiles/file/zumedobubewumuxemu.pdfIn PDF document text
    • https://zonapabudaxaj.weebly.com/uploads/1/3/4/0/134017389/ed3c4e.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_off0000d4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ecc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC4 11224 bytes
SHA-256: bf3b15bc4114ee5ca31c99faba8487ecdee0fb6747529cf0712230fea80f341c
font_02_sfnt_off000106f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106F6 17832 bytes
SHA-256: baf483cb46c59fbc6250b5713cf7db09c6fa66cbd6d6aaa18b5daff2dc6dd402