Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2cb9234439d566…

MALICIOUS

PDF

74.7 KB Created: 2021-08-28 07:46:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 7db46ad0fb16d40a634d9657bd30cfa6 SHA-1: 7ddf50314aee218b9bf57d87f48ecf5dd024211c SHA-256: af2cb9234439d566496775e51da7e4c3533c9301daaebd26dbe34d064f822064
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9934

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://medvor.ru/uplcv?utm_term=meaning+of+co+domain PDF link annotation
    • http://pro-elec.ru/ckfinder/userfiles/files/gejezomumegajujo.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/ca5d200c667d5cd9f6b0b2b6e8a0eb36/10054224264.pdfIn PDF document text
    • https://shipnhanh247.vn/asset/files/ratuzupafejuwa.pdfIn PDF document text
    • http://bannermaul.com/userData/board/file/vazatibowi.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/0845f38d32e0ee3d7a0659bb370b0c70/32114734873.pdfIn PDF document text
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d10e1e250---pilibetabedinamereroxasud.pdfIn PDF document text
    • https://exihomes.com/userfiles/files/biwud.pdfIn PDF document text
    • http://cinstech-inspect-survey.com/fckeditor_userfiles/file/7399888237.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/e2353403cf73d79409367a7bf17636d3/fumekudugaziz.pdfIn PDF document text
    • http://pcmcpropertyblog.com/wp-content/plugins/super-forms/uploads/php/files/960a50b280a11808aae190744b3ccf27/83866383611.pdfIn PDF document text
    • http://bennyhigh73.com/clients/3/33/33ce00c6a031cf3b17a3dcf69aaa7594/File/xenagoledowovaju.pdfIn PDF document text
    • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/jlvek288eus1m0fr9kg7q69rin8nirs6/gitoxavofixet.pdfIn PDF document text
    • http://colorfusion.us/admin/images/file/62438285084.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/73876174425.pdfIn PDF document text
    • https://aokman-drive.com/d/files/84018302688.pdfIn PDF document text
    • http://pantanalmsnews.com.br/ckfinder/userfiles/files/99436665245.pdfIn PDF document text
    • http://netmode.net/app/webroot/uploads/files/rarilikinididasanafag.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/23vtitcmb1cvvm94s538eg6a93/kigifuduwijakoki.pdfIn PDF document text
    • http://paradisetnl.com/FileData/ckfinder/files/20210712_0BB45CF31312DFE3.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/16079f3a8e368f---bakinevamopasipevuf.pdfPDF link annotation
    • http://e-skala.pl/userfiles/file/tazapatolon.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbd0914415---kinepejoba.pdfIn PDF document text
    • http://dallassymphonyleague.com/clients/1/14/14bb4a025281f1a32078cb68571f7cf3/File/bigowalozokavune.pdfIn PDF document text
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093aee604e6a---raxatasiduvidonugo.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a17b5b0a7f---mepugulip.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609e1c1ec617d---54219117780.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_off0000c55b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC55B 10400 bytes
SHA-256: f16ac69ce13dff5a7421e4e0d441ae008aacf5da21d776cfb82abb245ad7592c
font_01_sfnt_off0000dca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA0 15588 bytes
SHA-256: 64c3e50fc89497d146897041b19fb2ef66a8d1d72d998db0f72981db49df7144
font_02_sfnt_off00010440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10440 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1