Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2439b85ce4e1b88…

MALICIOUS

PDF

76.2 KB Created: 2021-06-29 12:56:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 32f6e180bcf7d959c2741c3b51572a5a SHA-1: 0813368c867551aa34b1ce7eb0fd1e22863d187c SHA-256: d2439b85ce4e1b88b27bc0a25dac7d675e23c4fa64304de80106ebf160ea8d16
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous links to compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The presence of a 'download button' lure further supports this, indicating an attempt to trick the user into downloading a malicious payload. While no scripts were explicitly extracted, the PDF structure and URL findings strongly suggest it's part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://inwebjor.ru/uplcv?utm_term=xps+to+pdf+software+download PDF link annotation
    • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd5ba07b41---63328570391.pdfIn PDF document text
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/hptd4h85ob542qi830jfsqsf1u/xemulitisewofevogolufas.pdfIn PDF document text
    • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/7b523131d03d82dc9bb6e88f51e586c5/61300456311.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160999097cdf0c---95569018732.pdfIn PDF document text
    • https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/a25l6j9nrb1ritj0d23gdvde15/55316753647.pdfIn PDF document text
    • http://www.bufolari.com/public/immagini/file/4855684098.pdfIn PDF document text
    • http://accessprecision.com/userfiles/file/27501570235.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/ff379e45585a673d7dffd6a12eba3f9f/kuvuborajabaxog.pdfIn PDF document text
    • http://orchid-daikanyama.com/userfiles/file/39850728857.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/9e97313cc9cb4549c41ce8e8cfcd6bf0/puvuduwezaboze.pdfIn PDF document text
    • http://abnicum.com/files/file/8279491984.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/e7c32c71ed9db76390d76c7b72074a19/43810266002.pdfIn PDF document text
    • http://maremio.ru/admin/ckfinder/userfiles/files/xirifoponejowezelinepibuf.pdfIn PDF document text
    • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/f34e0d10f806b3c0ae931de65169473c/85686308366.pdfIn PDF document text
    • http://wjvanderheidedienstverlening.nl/uploads/file/gokezekexezisamulefi.pdfIn PDF document text
    • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c692942485---kalijufovumovuten.pdfIn PDF document text
    • https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/e805f14591584e70e578542a7bd027c1/turupedaxalatixenokazedal.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160866cef2a460---vifixukobi.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e7fff2885a---fudum.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/logmv3gd3vcco0p33tha0c1m9g/84710736282.pdfIn PDF document text
    • http://puzynowska-kancelaria.com/userfiles/file/xanuzewudisijaredaxe.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_off0000c7f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7F1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE003 16772 bytes
SHA-256: 8fbcd80eb0da9450d27355e954e33d981adbe7f8f7f8fff972ac06465e4e1c82
font_02_sfnt_off00010bc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BC7 10492 bytes
SHA-256: 4aa6f027e3a932b0557ec6d9c077d0ee4494d0385a6a314ccbeba6afc801a254

Open this report in the interactive analyzer, or submit your own file for analysis.