Malicious PDF — malware analysis report

Static analysis result for SHA-256 445caee311f39b5b…

MALICIOUS

PDF

91.1 KB Created: 2021-12-10 19:03:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: 894d699366e23b0d6358829b081e5541 SHA-1: 9bf5bebd48c351e2a4256c0cd01a1b6a2d9ee33e SHA-256: 445caee311f39b5b186dd2e4726a6ccec7606a7e3aa74d84c7ca5b40c4ec979e
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://queure.ru/uplcv?utm_term=what+does+a+resume+look+like+for+college PDF link annotation
    • http://free-note.kr/files/fckeditor/file/289226156615356d0880e5.pdfIn PDF document text
    • http://kamennykoberec.eu/editor_uploads/system/files/89153122136.pdfIn PDF document text
    • https://devisme.maxtis.com/userfiles/file/fekakogisugiwogafemam.pdfIn PDF document text
    • http://www.mamafoundation.cz/ckfinder/userfiles/files/63781851792.pdfIn PDF document text
    • http://tivatijapan.com/uploads/userfiles/file/89824566608.pdfIn PDF document text
    • https://masihpt1.com/contents/files/metoresupotopom.pdfIn PDF document text
    • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/161af75c93e757---bineropebotizelok.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/38283de1d7f4492640ed8c353d7bf969/83375822779.pdfIn PDF document text
    • https://norservis.com/files/files/85722637639.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16135c8712fe1d---dodusezojojiwofugavunos.pdfIn PDF document text
    • http://www.supair-lux.hu/ckfinder/userfiles/files/26744141480.pdfIn PDF document text
    • http://limobebe.com/userfiles/files/rewipufenalivedikipix.pdfIn PDF document text
    • http://movietek.vn/hinh-anh/files/lamenarimifeluxatubolel.pdfIn PDF document text
    • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/82867756182.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16186607c1d7ed---kuxigixaluxikad.pdfIn PDF document text
    • http://tnslib.tools/userfiles/files/97436405907.pdfIn PDF document text
    • http://kenhquangcao.vn/uploads/files/wikegatavaw.pdfIn PDF document text
    • https://empezo.xyz/js/ckfinder/userfiles/files/30004846128.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/ad745be3197aec064cb15c9b691a45be/deregudokixevawabaravedel.pdfIn PDF document text
    • http://shyjjc.com/v15/Upload/file/202111829284528.pdfIn PDF document text
    • https://www.eos.org.eg/ckfinder/userfiles/files/genazexojuvuwolatixalet.pdfIn PDF document text
    • http://www.almansori-ye.com/almansorifiles/files/73670733876.pdfIn PDF document text
    • https://31app.com/userfiles/file/vevenebe.pdfIn PDF document text
    • http://sangtaoad.com/uploads/userfiles/file/ziwiwonune.pdfIn PDF document text
    • https://lostfoundglobal.com/userfiles/file/59692534992.pdfIn PDF document text
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1618a15aa499f2---vutabowasesupopojev.pdfIn PDF document text
    • https://ww150006.linebot.net/upfile/files/20210902003349.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_off0000fe6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE6B 11004 bytes
SHA-256: 10b2c9682e2715e87800f1d5a0e5471a873e49b7662aa054d001aa6a3de9258e
font_01_sfnt_off000117d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117D0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00012e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E6F 18208 bytes
SHA-256: 9a5f02d48cea445ae9e65b41c79bff450aafc79753664d3770fcdc60f59a74f9