Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dc62f3a4daad61…

MALICIOUS

PDF

75.1 KB Created: 2021-11-09 11:28:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 45cdef0e4272315a40b48511593a213f SHA-1: bf97e782fa387e5d4e955769293deef68357ef49 SHA-256: c5dc62f3a4daad6189c2a4baf0ddc273a567f03eedc5113de8ce3dc791f326ab
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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://basalyemek.com/ckfinder/userfiles/files/jopawoxawivojesabun.pdf In PDF document text
    • http://biosafety.biz/ckfinder/userfiles/files/melifesaxolog.pdfIn PDF document text
    • https://adepotcustom.com/UploadFiles/file/20211108121802110.pdfIn PDF document text
    • https://bodykneadstherapy.com.au/ckfinder/userfiles/files/vifujoxovelemos.pdfIn PDF document text
    • http://modnyi-buket.ru/uploads/files/fixupupedewu.pdfIn PDF document text
    • http://kunas.lt/app/webroot/uploads/files/70937122237.pdfIn PDF document text
    • http://faurerom.com/userfiles/file/6022302123.pdfIn PDF document text
    • https://wyslijpaczki.pl/app/webroot/files/userfiles/file/sisepolisapowepitazowu.pdfIn PDF document text
    • http://officeharbor.com/pdtInfo/gepotiman.pdfIn PDF document text
    • http://fc-junajted.com/upload/datoteke/27862480458.pdfIn PDF document text
    • http://abpaluso.com/upload/file/63278882708.pdfIn PDF document text
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/aac83460325bc6bc93f485faa34e3d70/57841599223.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16169f9205b3b8---wakipusikifu.pdfIn PDF document text
    • http://openendrep.com/userfiles/files/8602717968.pdfIn PDF document text
    • http://short-story.ru/upload/file/goneterivovap.pdfIn PDF document text
    • http://grandioso.asia/editor_upload_image/file/42387149434.pdfIn PDF document text
    • http://tao-ssct.org/data/upload/file/10119224721.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161745495e5928---82157536675.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/tuvirijovivije.pdfIn PDF document text
    • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/2351157300.pdfIn PDF document text
    • http://gojjang.com/uploads/files/fipavasura.pdfIn PDF document text
    • http://groupburuemas2.com/contents/files/watuborixanawibevuleseg.pdfIn PDF document text
    • https://eghamatyab.com/basefile/bainbookcom/files/8046725448.pdfIn PDF document text
    • http://www.recko.ru/ckfinder/userfiles/files/mifirutojinagevefoka.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16163de810a953---71169061929.pdfIn PDF document text
    • http://www.sudaff.com/pics/file/xejajuposered.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/TxADE9PCSUw/uplcv?utm_term=chinese+online+near+mePDF link annotation
    • 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_off0000c37a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC37A 17424 bytes
SHA-256: 1d2fbdfecb2196ef86ef571537744643c290516649fcab2d4fd94f347460fc5a
font_01_sfnt_off0000f085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF085 10304 bytes
SHA-256: f3be74ac635cb1fbba285d86e3b59a8508a63698d6ea18536fa73c9cc162ab52
font_02_sfnt_off00010783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10783 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef