Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e321ed1c25aeb3a…

MALICIOUS

PDF

77.7 KB Created: 2021-10-13 02:31:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 66ae8e433071d6a27462cb9015a828a0 SHA-1: fe26d29ae1ed390ae8399cd82930f50b6cb75660 SHA-256: 4e321ed1c25aeb3a87c41913c702716501b614ced83ef5e48f7dec40f0a977bd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/212f37d9f05d5c13f7ec55d51818abba/joralin.pdf In PDF document text
    • https://delcinfo.ru/img/files/files/55144989230.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/32daa271fb2fe0b9fc58cd3658dad000/faxokusapupapivelore.pdfIn PDF document text
    • http://eia-edu.com/userfiles/file/16173638308.pdfIn PDF document text
    • https://keluargamimpi.com/contents/files/73971837255.pdfIn PDF document text
    • https://tutorsbureau.net/userfiles/file/19363940003.pdfIn PDF document text
    • https://bucatariizidite.ro/printuri-fi/files/puxufenumuxe.pdfIn PDF document text
    • http://ipmarketing.net/FCKeditor/editor/filemanager/connectors/userfiles/file/81661426697.pdfIn PDF document text
    • http://lamay.de/userfiles/file/1486794529.pdfIn PDF document text
    • http://parikshitconstruction.com/uploads/tipewexekinobode.pdfIn PDF document text
    • http://clinivetmadonnadirosa.eu/userfiles/files/3760326749.pdfIn PDF document text
    • https://totounited.com/contents/files/26153436556.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca77244aee---jorupesitobunikawarupexul.pdfIn PDF document text
    • http://alrabbancapital.com/file/files/virifixotekozefopilerar.pdfIn PDF document text
    • http://idrogastermoclima.it/Utentifile/FCKPage/file/mobalesitaperekusiparinaw.pdfIn PDF document text
    • http://skontrolsengineering.com/file_media/file_image/file/39075434895.pdfIn PDF document text
    • http://mywymc.com/userfiles/file/wazojaninagiwi.pdfIn PDF document text
    • https://groupunsur4.com/contents/files/taxasozajerizex.pdfIn PDF document text
    • https://jancsoalapitvany.hu/ckfinder/userfiles/files/nateju.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161501992df713---71357640595.pdfIn PDF document text
    • http://pcwenhua.com/uploadimg/file/16323654691270673542.pdfIn PDF document text
    • http://maaramachandifpo.com/admin/userfiles/file/sadokuvepezudagomivo.pdfIn PDF document text
    • https://ptogel2.com/contents/files/87671958715.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/tgwjJlsMqHc/uplcv?utm_term=the+photoelectron+spectra+above+show+the+energyPDF link annotation
    • http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/wiridu.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_off0000c7a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7A6 10928 bytes
SHA-256: 1cd533739fc4ab054bab7ebaf2b7dc9285c6865036990b630d5c2ffd780f83d1
font_01_sfnt_off0000e0dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DD 18716 bytes
SHA-256: 0209802bc425adac44fc698390a32bb6185109cbe8c30768b18fe974a8bc5e57
font_02_sfnt_off000110ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110EC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1