Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de5272d0b1ef008…

MALICIOUS

PDF

77.3 KB Created: 2022-03-30 07:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 517d7b7fbc589965e40d1a33e54a0cf3 SHA-1: 9a15e1c2fc5536ea3fc2901e0c85e705d745f2f8 SHA-256: 4de5272d0b1ef00847d98658a479718876afa7841f1da750f98deb60243666d5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cafij.co.za/YmrXLWy8?keyword=2012%20mercury%209.9%204%20stroke%20owners%20manual PDF link annotation
    • https://bigirafu.weebly.com/uploads/1/3/4/4/134494330/fulerozobel-dabibamen-ditegifodop.pdfIn PDF document text
    • http://veitali.com/upload/files/91365964633.pdfIn PDF document text
    • https://jadegivi.weebly.com/uploads/1/3/4/8/134851053/4a42f1bfbe485.pdfIn PDF document text
    • http://rideabikenews.com/user_img/files/xexokutijelajuzovegim.pdfIn PDF document text
    • https://www.yamanosake.com/js/kcfinder/upload/files/72336608904.pdfIn PDF document text
    • http://softtox.pl/new/userfiles/file/71976658603.pdfIn PDF document text
    • https://mavegisokelu.weebly.com/uploads/1/3/4/1/134131346/bbf53fe82b704.pdfIn PDF document text
    • http://yeke.com.tr/public/kcfinder/upload/files/8461962814.pdfIn PDF document text
    • https://nebuxulusa.weebly.com/uploads/1/3/5/3/135306634/fajapefisel.pdfIn PDF document text
    • http://mayphatdienngocquang.com/media/ftp/file/sogikotuxin.pdfIn PDF document text
    • https://costarica4d.com/contents/files/39443761320.pdfIn PDF document text
    • https://gojenejanoz.weebly.com/uploads/1/3/0/7/130739654/3299662.pdfIn PDF document text
    • http://lapempi.nl/ckfinder/userfiles/files/jipijokule.pdfIn PDF document text
    • http://sdtech-kh.com/kcfinder/upload/files/13050357588.pdfIn PDF document text
    • https://tabugutiku.weebly.com/uploads/1/3/2/6/132682541/605899.pdfIn PDF document text
    • https://funeralinnovations.com/copilots/upload/files/84011337256.pdfIn PDF document text
    • http://grosfillex.com.br/admin/plugins/ckeditor/kcfinder/upload/files/nogolu.pdfIn PDF document text
    • http://raiz.jp/kcfinder/upload/files/rofutixigudazajekiju.pdfIn PDF document text
    • https://wajevuwefabebos.weebly.com/uploads/1/3/4/6/134681626/ba50e39.pdfIn PDF document text
    • https://henuopack.com/d/files/51086159040.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1622b8a542aba7---59047348989.pdfIn PDF document text
    • https://nulivuxod.weebly.com/uploads/1/3/0/7/130776854/sitevibumanak.pdfIn PDF document text
    • https://laxedojopepab.weebly.com/uploads/1/3/4/8/134896069/papum.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 extracted file (font_00_sfnt_off0000c8be.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c8be.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BE 11200 bytes
SHA-256: b9e47d5d8e331a4eaf3b078408e24677655d3d65ecf95d0cb274ea494ad31e56
font_01_sfnt_off0000e338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE338 17400 bytes
SHA-256: 3660329f3e4ecce0befe14063c297939f307690662cdd1166f42205f2c254434
font_02_sfnt_off00011132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11132 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336