Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c87aa7f233bc2f4…

MALICIOUS

PDF

263.1 KB Created: 2022-03-03 05:47:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 9b6d8edd2ac9f0932cbf05b2dd59f1cc SHA-1: a7a1d30d1925cecb9d4698b4ac7835c2126d0c9c SHA-256: 2c87aa7f233bc2f4e95fa54cc8c77ddbacd1e1fad6dd6728165b969afe4833dd
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7707

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=bootstrap+admin+template+free+asp.+net PDF link annotation
    • http://xszhuhai.com/uploadfiles/files/larobezejilomuw.pdfIn PDF document text
    • http://figueredoyasociados.com/kcfinder/upload/files/puxugidapawova.pdfIn PDF document text
    • http://vinhthuan.vn/upload/files/70540630775.pdfIn PDF document text
    • https://nada70.org/userfiles/file/69141253060.pdfIn PDF document text
    • http://entryexpress.online/chapter_images/files/33479786064.pdfIn PDF document text
    • https://saintarseny.ca/sites/saintarseny.ca/files/file/22875984506.pdfIn PDF document text
    • http://swhwsolution.it/ckeditor-ckfinder-integration/uploads/files/26513785097.pdfIn PDF document text
    • https://www.officinasapori.com/_admin/kcfinder/upload/files/pokujesujazagijepifu.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16203e28b04607---75662947943.pdfIn PDF document text
    • https://www.borzabadi.com/ckfinder/userfiles/files/45696455561.pdfIn PDF document text
    • https://armature.ir/cache/fck_files/file/xiwiruxatefonixelexor.pdfIn PDF document text
    • https://nezamirekhaseafoods.com/userfiles/file/15053062958.pdfIn PDF document text
    • http://help-avocat.fr/js/kcfinder/upload/files/boxobumerisex.pdfIn PDF document text
    • http://nagymester.com/userfiles/file/71975705510.pdfIn PDF document text
    • https://golf-tout-terrain.com/publish/page/file/43401493816.pdfIn PDF document text
    • http://jia-longsofa.com/uploadpic/jialong151126/files/202202051559033766.pdfIn PDF document text
    • https://heatingboiler.ca/fck_upload/file/vifapemisinumoxupu.pdfIn PDF document text
    • http://ktimavoyatzi.gr/images/files/files/gadifatog.pdfIn PDF document text
    • http://royal-pizza.eu/files/file/46368322200.pdfIn PDF document text
    • http://demignyfasol.com/kcfinder/upload/files/44676931446.pdfIn PDF document text
    • https://actionalbertafoundationrepair.com/nbloom/fckuploads/file/vexemukoz.pdfIn PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/161f95943e7711---70009276229.pdfIn PDF document text
    • http://belniig.by/public/file/nevajidasomorebojolunu.pdfIn PDF document text
    • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/sagozef.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16212800852da9---kesonumezodu.pdfIn PDF document text
    • http://www.salpasafarit.fi/tiedostot/files/zifelakoxomikumu.pdfIn PDF document text
    • http://instalace-charvat.cz/userfiles/file/88234462191.pdfIn PDF document text
    • https://soalmatematik.com/userfiles/file/zuxopupefamab.pdfIn PDF document text
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/539d5b9bcd4577845214d5ddd8495ff8/bibupumipuretebi.pdfIn PDF document text
    • http://kawarulabo.com/app/webroot/js/kcfinder/upload/files/xusavaravasabiwuwevuxi.pdfIn PDF document text
    • http://sreecollegeofpharmacy.com/admin/kcfinder/upload/files/vasidilakudorekidigus.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_off0003abb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ABB8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003c2d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C2D3 19124 bytes
SHA-256: d0d8c4f74997411ae0a7583cd3b07c94bb3d130232b230807ab31da5f4fcb2fd
font_02_sfnt_off0003f436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F436 10776 bytes
SHA-256: 6f7e51ab4d1782c520a9a3a2ed7ffd933092b8488f58d07e1e510a05b6169b73