Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87e1a7d46ecf90e…

MALICIOUS

PDF

303.0 KB Created: 2021-12-29 10:35:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 63cba315b68df18c7d757c59bf5f43d0 SHA-1: c4f5220b3b9a7866ddc8e141103d8270d3d574fe SHA-256: f87e1a7d46ecf90ed6878c625b1c99d9ad4250403b53272b12539ef8e93395fd
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7334

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://allytemp.ru/uplcv?utm_term=informacion+sobre+cadenas+alimentarias+wikipedia PDF link annotation
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/dce201d23c575407a5b2bc2aa989609e/vametoragatekuduj.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161978c2dc02ee---3130382720.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/4488cbc00d7dcb6836914c5d07a7d515/lubif.pdfIn PDF document text
    • http://neuroxl.com/images/file/nesaserapazapalugokebed.pdfIn PDF document text
    • http://libertyquad72.fr/userfiles/file/69260137702.pdfIn PDF document text
    • http://pampa.be/uploads/userfiles/files/javapigeborap.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c3dae7786db---sedowamorujomamemikelu.pdfIn PDF document text
    • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/b0209a8962178991bad06d86c2f9251a/jajoxegikasa.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/161668c4517475---pubituxitatopixenipaloz.pdfIn PDF document text
    • http://agriturismolionsfarm.it/userfiles/files/54974164713.pdfIn PDF document text
    • https://shunnasato.com/kolikedumaxolefefu.pdfIn PDF document text
    • https://wecareu.net/ckfinder/userfiles/files/kozaxodo.pdfIn PDF document text
    • http://kahsport.cz/userfiles/file/7783790686.pdfIn PDF document text
    • http://aroma-es.site/yamituki-n/uploads/files/82272082042.pdfIn PDF document text
    • http://top-caster.com/userfiles/file/22338428871.pdfIn PDF document text
    • http://www.proektes.ru/kcfinder/upload/files/23395350859.pdfIn PDF document text
    • https://eobliecky.sk/userfiles/file/zaravevefaraxuv.pdfIn PDF document text
    • https://tdemo.order-pro.com/ckfinder/userfiles/files/jiduje.pdfIn PDF document text
    • https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/polevikujopikanififanesu.pdfIn PDF document text
    • https://zweefvlieg.net/userfiles/file/nepenuguxaboj.pdfIn PDF document text
    • https://alhurwallpaper.com/Files/files/42515665692.pdfIn PDF document text
    • http://bloodfaces.de/attachment/file/nabesujefala.pdfIn PDF document text
    • http://nenorm.com/files/files/davokuvasadeta.pdfIn PDF document text
    • https://dakhoathienhoa.net/images/files/busoki.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_off000449d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x449D5 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00046079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46079 11052 bytes
SHA-256: a693f1f754a854f632cdc8a441b0a523f65acb1953becfa486d36f9e484cf046
font_02_sfnt_off00047a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47A05 19236 bytes
SHA-256: 3b57aa54607a261d7f871f057e0e579d0d4467dd1c90e2e9cc6bba01a4c323bf