Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7fd6988d677e47…

MALICIOUS

PDF

83.1 KB Created: 2021-07-13 01:18:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 6cfaf223049af741ac224ff099e732d2 SHA-1: 65c85da795eb24d26ac9a1bc9561d96b10532f70 SHA-256: cd7fd6988d677e47561b1bf054c1303fe9c8b6e5755e588b6bfde3592b24ea55
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9860

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 https://medvor.ru/uplcv?utm_term=all+i+want+is+and+all+i+need+is+to+find+somebody PDF link annotation
    • https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/mg990va24miq68tq5vsq4vkeh6/17633776397.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/5c1e62e4cbbdf6169e9db0106d4c6851/juxirobit.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/1lcr8m6amcd55o9q8bkspme5b3/nusataxesutawawirit.pdfIn PDF document text
    • http://whatdwellswithin.com/file/raxewezabefigimopanutuxi.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/0b74e8f435fc469bc7363796e6e6ecb9/zebige.pdfIn PDF document text
    • https://btcauction.vn/hinhanh/file/24644824223.pdfIn PDF document text
    • https://vieclamxaydung24h.com/upload/files/samorotujugipire.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/30be2e0d3ea10868378a3dea63745419/domalidaxaxivobovarizamar.pdfIn PDF document text
    • http://autodilykanka.cz/cmsimple/images/file/45547756418.pdfIn PDF document text
    • http://acupunctuuryao.nl/ckfinder/userfiles/files/72036776481.pdfIn PDF document text
    • http://odpadykj.cz/UserFiles/File/42480024620.pdfIn PDF document text
    • http://vankouwenenmastop.nl/UserFiles/file/58505591391.pdfIn PDF document text
    • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/rliv83bnhoff78ohf007uabmr8/popesuwenigubotedinabof.pdfIn PDF document text
    • https://euroroma-bg.org/files/file/jamebisepapi.pdfIn PDF document text
    • http://georgefamilyreunion.org/clients/86186/File/5529994781.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/1382415434acc195b44a80f7b988528d/6645392981.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160746c442e4e4---gimosalazixujiluxiwuga.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d15eba239---wamimozesupu.pdfIn PDF document text
    • http://harveyfamily4016.com/clients/5/51/51a16c7d09a65bdad6d3cd8ef7da6b4e/File/77901927967.pdfIn PDF document text
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/2402836a69c256ab7e0dbbab1810059e/21437467349.pdfIn PDF document text
    • https://propiedades.net/ckfinder/userfiles/files/38282206954.pdfIn PDF document text
    • http://iwilldoit.ru/uploads/files/files/64849389065.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8bc7f15ee---woborasupoz.pdfIn PDF document text
    • http://mnogonomerov.ru/uploads/file/dosexazutipugu.pdfIn PDF document text
    • http://onfireinteriors.com/userfiles/mewazoxamasulevevuzevi.pdfIn PDF document text
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d622c65260---tuwepenezo.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_off0000dd8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8D 10736 bytes
SHA-256: 73fee5449f92f09f72c6bdd90329f1d96454870340e5d9e06073898569ebb189
font_01_sfnt_off0000f64e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF64E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E60 19684 bytes
SHA-256: aa614e92b9022759575c926410a491bea8decbe71b995dee3e4e14b6b14f0e7b