Malicious PDF — malware analysis report

Static analysis result for SHA-256 4781e8be30f482b0…

MALICIOUS

PDF

340.1 KB Created: 2022-02-06 13:21:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: f73e25055f694ab6639c79ff2ce6c9fc SHA-1: dab9e8e484de34a3743989a2269593d02910d621 SHA-256: 4781e8be30f482b0cbf9aec75df09803d1c89645cc17f1349155c27df47641eb
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6374

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://podar.co.za/XSRYdR1H?utm_term=grow+castle+guide+dark+crystal PDF link annotation
    • http://www.fonfe.com/uploads/files/puxitekevizawepiwuviri.pdfIn PDF document text
    • http://zge-led.com/luodan/images/userfiles/file/vevudutoxusenaba.pdfIn PDF document text
    • http://cssh.es/img/file/vejejazumaweluxeg.pdfIn PDF document text
    • http://samafb.org/uploadfilefiles/25498709886.pdfIn PDF document text
    • http://laibros.com/ckeditor/userfiles/files/45996494219.pdfIn PDF document text
    • http://dymenahealthcare.com/upload/fckeditor/file/regis.pdfIn PDF document text
    • http://daehwa.info/uploaded/file/rofufuzifewado.pdfIn PDF document text
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16162193cea26d---bojizavanuvatamojaravimoz.pdfIn PDF document text
    • http://fourfoods.com/images/files/79393915843.pdfIn PDF document text
    • http://h04ydivan.ru/userfiles/file/11941183766.pdfIn PDF document text
    • http://indecomavo.pl/userimg/inc/85855130639.pdfIn PDF document text
    • http://computerdoki.hu/user/file/1201431104.pdfIn PDF document text
    • http://newdimension.su/userfiles/file/23360616395.pdfIn PDF document text
    • https://pagodatalk.com/_UploadFile/Images/file/11836577910.pdfIn PDF document text
    • http://marta-galan.com/files/varios/file/defika.pdfIn PDF document text
    • http://hairandoil.com/uploads/12690438505.pdfIn PDF document text
    • http://warehousetraining.ie/images/wosozopapofopepufo.pdfIn PDF document text
    • http://szerecsengyogyszertar.hu/editor_up/xorupomudazexexa.pdfIn PDF document text
    • http://fotografiafrancescosomma.com/userfiles/files/jilipo.pdfIn PDF document text
    • https://uzmanwebci.com/calisma2/files/uploads/53754514533.pdfIn PDF document text
    • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160f4d2072e3f9---nilupavidigij.pdfIn PDF document text
    • http://argyleliquidations.com/userfiles/files/58217481223.pdfIn PDF document text
    • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161238b3b0634f---62894685095.pdfIn PDF document text
    • http://brickchamber.com/ckfinder/userfiles/files/govudu.pdfIn PDF document text
    • http://allier.proximeo.com/ckfinder/userfiles/files/85098075877.pdfIn PDF document text
    • http://zabradli-znerezu.cz/userfiles/file/valuwunudojigi.pdfIn PDF document text
    • http://kajo-frings.de/userfiles/file/87129453374.pdfIn PDF document text
    • http://topspeed4wd.com/ckfinder/userfiles/files/xipilinefozopipaserulif.pdfIn PDF document text
    • http://abimobiliare.pl/pliki/File/86008758047.pdfIn PDF document text
    • https://megacook.pt/site/upload/file/54290283080.pdfIn PDF document text
    • https://gagasanriau.com/a450d92cb6be01b3b3669c18bfca7901/kcfinder/upload/files/8185981838.pdfIn PDF document text
    • http://alda.pl/ckfinder/userfiles/files/91385048472.pdfIn PDF document text
    • https://girl0229960192.com/upload/users/files/22368290455.pdfIn PDF document text
    • http://maimungkorn.com/UserFiles/file/99551005948.pdfIn PDF document text
    • https://www.rt9.rspo.org/ckfinder/userfiles/files/kobekononame.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004ccbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CCBF 17472 bytes
SHA-256: cacea730ef013e0549876b64e8274003d1eedff964b4179db88aba7aeb6adfb2
font_01_sfnt_off0004fa5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA5A 10872 bytes
SHA-256: c1793a1b6dfb5048d221d14d72fc64fa95a192d7d92d12c34872ab7b5243a3e1
font_02_sfnt_off00051381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51381 16160 bytes
SHA-256: 27fa49ca30b1f57c6e4f8b99ad1f73ead7010ce1f191e20d716503af09158f46
font_03_sfnt_off000528fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x528FC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9