Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87ece10514f154b…

MALICIOUS

PDF

107.9 KB Created: 2021-07-13 08:32:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 5ae1ab428ee21e1a5e42abb9450a1e43 SHA-1: 5629f55f88b92ae518f57580a2950db83faaffa9 SHA-256: f87ece10514f154bcf3096173af62c93b8592fed08acd10ed3449961b3a6b5fc
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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
  • 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 http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160d974e311707---57585478352.pdf In PDF document text
    • http://bertrandetgastineaudesigners.fr/userfiles/file/9932439482.pdfIn PDF document text
    • http://jrmhandling.nl/upload/file/veluwi.pdfIn PDF document text
    • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/50779696b5db4766b423a44aaca3688a/sotorax.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e53be2a6e6a---60669816841.pdfIn PDF document text
    • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090c79ed25ff---tibaxorutaluvarovite.pdfIn PDF document text
    • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160932f8268be6---99545518538.pdfIn PDF document text
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9cff0f2f40---bisilopuripunilavenol.pdfIn PDF document text
    • http://kimhoatra.com/upload/fckimagesfile/77784210221.pdfIn PDF document text
    • https://prokoncept.hu/admin/blogfck/image/file/dasegazekudolokejewi.pdfIn PDF document text
    • http://vietsaovang.com/uploads/userfiles/file/70164802348.pdfIn PDF document text
    • http://www.520amis.com/upload/files/sefomewexenan.pdfIn PDF document text
    • http://voijin.com/userfiles/files/21117926554.pdfIn PDF document text
    • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/bf20c511d78319d5b5cbee4866e594cb/21214085342.pdfIn PDF document text
    • https://briljant-maleri.se/UserFiles/files/guxotorojilulajubif.pdfIn PDF document text
    • http://zeminyerkaplama.com/upload/ckfinder/files/65324247945.pdfIn PDF document text
    • http://omatsuri.kr/data/userfiles/files/81068019977.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/b241502da2521d8fb8dbfa8f76ea22ab/16172534950.pdfIn PDF document text
    • http://www.hydro-tg.pro/upload/file/69383633652.pdfIn PDF document text
    • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/cee1bac5ded8e775565f1c3698a9e345/bapojomif.pdfIn PDF document text
    • https://privatecambodiatour.com/userfiles/file/juxile.pdfIn PDF document text
    • http://penzionriverside.cz/files/file/damesusafujipi.pdfIn PDF document text
    • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608954b604529---23725920756.pdfIn PDF document text
    • https://suativisamsungtaihanoi.net/upload/files/dudokeparomerumal.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609470daca246---55593013566.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=four+types+of+tithesPDF link annotation
    • 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_off000145cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145CF 17128 bytes
SHA-256: 62d4a44723f32ce38941ea9ae3b8a79e1f2a32f9a57332a8680fcb4882493941
font_01_sfnt_off000172b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x172B6 10336 bytes
SHA-256: 0e64b2efeb6fcef1903986f0e4d0baab21d856bbd26d51232d6de26f978d32a9
font_02_sfnt_off00018a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18A37 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1