Malicious PDF — malware analysis report

Static analysis result for SHA-256 7932570d225d9d4e…

MALICIOUS

PDF

83.0 KB Created: 2021-10-09 10:07:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: ec2ef0e52917c2d8896ecc4bee74dc2a SHA-1: 8f3fb0cd91397cf5a4079621c812fc28781f5845 SHA-256: 7932570d225d9d4ec9ca693825f5c7d73d0eb8dea819a4556130de9e0bbfbe93
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://krisoc.ru/uplcv?utm_term=motion+and+types+of+motion+exercise PDF link annotation
    • http://dachastyle.com/userfiles/file/zerogejil.pdfIn PDF document text
    • http://paddockj.com/user_data/editor/ckfinder/core/connector/php/upload/files/pitulanepijagewanejaxaxo.pdfIn PDF document text
    • http://goforthegreengolfpools.com/userfiles/file/wusilidabirogi.pdfIn PDF document text
    • http://www.contectrade.hu/fckfiles/file/38839442161.pdfIn PDF document text
    • https://darkoyunpin.com/calisma2/files/uploads/manogifufanuboladotawal.pdfIn PDF document text
    • https://fairtradeportal.pl/userfiles/file/fikuwuvinovofufaxexe.pdfIn PDF document text
    • https://taksis.lv/taksis/userfiles/file/vezusupopodujepezinez.pdfIn PDF document text
    • http://ytbozhuo.com/upload/file/011354347695.pdfIn PDF document text
    • http://lawfirm.vn/MINH/user_files/file/rariziwilumopapupakubuxev.pdfIn PDF document text
    • https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614e0758749ca---52965562885.pdfIn PDF document text
    • https://home-consult.lu/userfiles/files/64440892505.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/756aad9a4cb35a42cd43ce5287aee21c/dilumusaxomusubilobigezu.pdfIn PDF document text
    • https://ever.dacola.com/upload/files/24943456106.pdfIn PDF document text
    • http://mclarenquartz.in/ci/userfiles/files/72579367409.pdfIn PDF document text
    • http://koszyczarek.pl/userfiles/file/muxuzitiredejagakowo.pdfIn PDF document text
    • https://www.adoz.cz/ckfinder/userfiles/files/noginoje.pdfIn PDF document text
    • https://mashura.co/userfiles/files/5610780463.pdfIn PDF document text
    • http://solemarservizi.it/userfiles/files/98696839634.pdfIn PDF document text
    • https://fentesmakina.com/paket/upload/files/71563610585.pdfIn PDF document text
    • https://hw-power.com/uploads/ckfiles/files/613a6ab6b8acd.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614cdcf7d781c---81475043681.pdfIn PDF document text
    • http://wgadget.com/file_media/file_image/file/18925001655.pdfIn PDF document text
    • http://indecomavo.pl/userimg/inc/lirusogur.pdfIn PDF document text
    • http://crescentcarpets.com/userfiles/file/35131053523.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_off0000dd43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD43 18876 bytes
SHA-256: f71df425fee202f833ffcda7a091b61f5f730d1cede1c0a50af35b08e756f192
font_01_sfnt_off00010cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CC4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000124db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124DB 10944 bytes
SHA-256: e8816bcb51d4c24891f504fd187fd4967b29724eb9bd8d3ff97c1e8de3536472