Malicious PDF — malware analysis report

Static analysis result for SHA-256 29a7717e09e925da…

MALICIOUS

PDF

78.8 KB Created: 2021-06-30 06:35:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: add4d15e9832e54dce18e234a956caca SHA-1: e4908d1363b86ea05583f31e76a9dc8691ab023c SHA-256: 29a7717e09e925da503ddd9fa819b0db5619f4244cc51d34e4c77104f5d6498c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a link farm pointing to numerous distinct hosts, many of which appear to be compromised WordPress sites used for hosting PDF files. The primary URL suggests a lure for downloading software, likely a phishing tactic. No scripts were extracted, but the presence of numerous external links indicates an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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://smidgel.ru/uplcv?utm_term=download+imo+app+for+windows+10 PDF link annotation
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e10192f830---38517266953.pdfIn PDF document text
    • http://aryajob.com/user_upload/file/fegonenigolonixisukesokex.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/rjt70fsaotk3n1ejoal3f0a630/9816608568.pdfIn PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/2j2ffu2lrtvlgsfp00shhlq177/90265270769.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/inhi2r0i660d8unp0s5u0qdf2b/54895179570.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c037857c3d4---pabigovij.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5608142b8---wakovepalotitekagox.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc4f132981---bulivumewefovebuxen.pdfIn PDF document text
    • https://artbynela.com/uploads/file/witovezokawigojeme.pdfIn PDF document text
    • http://villaelen.it/userfiles/files/kolagosetavufegatap.pdfIn PDF document text
    • https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/832dc8e4b28b043104299a02e01459ee/rupivuzofevup.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/4acba53416c63891d55304c76f536ff5/14536761458.pdfIn PDF document text
    • https://xn--arbeitskndigungsrecht-best-5zc.de/userfiles/file/vadakif.pdfIn PDF document text
    • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/7deaec7c8daf7ca33469785549a94a57/30155962888.pdfIn PDF document text
    • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/863caf9acffd24c029590c6b83fb2260/pewinumixelirekax.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160997fb5e898a---55193851940.pdfIn PDF document text
    • http://misosmile.com/upload/editor/files/8362382749.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094dd5bd13d4---vujiloxerenolar.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16085a3d3a89cb---zamupufusivufapezuxir.pdfIn PDF document text
    • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c792de8e9c---3503621581.pdfIn PDF document text
    • http://daiichibus.vn/uploads/news_file/nebezov.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/1ba7eec4eee4abfccdb7cbb65d175260/79528510469.pdfIn PDF document text
    • http://sochi-polyana.com/ckfinder/userfiles/files/8007648774.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ab8b6a6c5aa---48827154136.pdfIn PDF document text
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/63820575958b7293e1d395543485f214/59299893114.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_off0000d0ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0EC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FE 17272 bytes
SHA-256: 053c5e7a5bcb03276c03e83b976b8b0cb8e4af2e4ff8a5a10bf55691ac3cad2a
font_02_sfnt_off00011550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11550 10688 bytes
SHA-256: adaf71810988b2c3784d462407f6225b4087584510cc81403500fd42a2a974a3