Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dcdbbf09a656629…

MALICIOUS

PDF

94.0 KB Created: 2021-07-24 23:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: fe9c7e0f02013c5539e00fd7127d7bcb SHA-1: 319fafcc52560ffc1cd647ad1b1e6436742adf52 SHA-256: 1dcdbbf09a656629d87f7f31fdefe697a89d2ff4181b90e4a1b179ac99104fbd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://longarmacademy.net/fckeditor/userfiles/file/59167220492.pdf In PDF document text
    • http://stroisvias.ru/userfiles/file/xeposukemifemotogu.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/0a83265b8e17e2197b2ce8fa3de09257/37123123124.pdfIn PDF document text
    • http://goldenpeak.it/userfiles/files/72800868620.pdfIn PDF document text
    • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/0a7320a88697c634bbfaa7b7c6242851/fixelovamilimagowabaza.pdfIn PDF document text
    • http://grandbarnettfamily.com/clients/a/a0/a01b80d98e57c38af56892ab55e7d82f/File/ketore.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2651674fe4---bemuluderefejujugup.pdfIn PDF document text
    • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9bd66ace2---33526788087.pdfIn PDF document text
    • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/cddc41ce9711941307380b43a0e657f1/30280366321.pdfIn PDF document text
    • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/5e486f22480a97b1241adad706c1bae9/79490905319.pdfIn PDF document text
    • http://bulgankhangai.mn/userfiles/files/deperogukedabirarobuguwu.pdfIn PDF document text
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/93ad7ee32334da3c2f3314bef0138240/94435323692.pdfIn PDF document text
    • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4248a41080---67286236888.pdfIn PDF document text
    • https://blnk.eu/userfiles/files/38324978121.pdfIn PDF document text
    • http://noahjohnsonsark.com/clients/e/ef/ef24418f2336b9480f3353ee42fa3f58/File/1246322600.pdfIn PDF document text
    • http://alibabashipping.com/userfiles/file/71089139550.pdfIn PDF document text
    • https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/8dfc5fda6ad3c7ead34f8737d922112b/47331680097.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/a3a401d98e9c7e32a1fdf9e3777db4f2/xugibujekatuja.pdfIn PDF document text
    • http://woodwork.pl/ubezpiecz/obrazy/file/kukan.pdfIn PDF document text
    • http://chandigarhdatarecovery.com/files/file/pepopalupategilix.pdfIn PDF document text
    • http://mkngsp.ru/upload/files/26356835678.pdfIn PDF document text
    • https://takeorders.online/wp-content/plugins/super-forms/uploads/php/files/qkhkp09bftfj18qsu5te4htduf/6673813052.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609adb34b05d7---65104389875.pdfIn PDF document text
    • https://oykufestivali.com/ckfinder/userfiles/files/bikejozogonomutetu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=descargar+pablo+escobar+el+patron+del+mal+google+drivePDF 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_off000106c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED8 18864 bytes
SHA-256: 18ba63d47948071d69f1ed9560e031cf4780e8de6e0486e8ec1d02ff3bbe12a7
font_02_sfnt_off00014f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F6A 11064 bytes
SHA-256: 7b09169a255f933a405cee9be1bdb239ff954092a3bfe6da1bc14c8ccd161919