Malicious PDF — malware analysis report

Static analysis result for SHA-256 69ae3f56394160e2…

MALICIOUS

PDF

88.0 KB Created: 2021-07-07 01:21:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: d69b4fc979a99bd64f639a851540c837 SHA-1: 637ed820c5e02c4e6a6103521e99116a19f60eb4 SHA-256: 69ae3f56394160e2e727a23db70a4b1ff168c7303f21fa9f33a68e4682a07b79
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It functions as a link farm, containing numerous embedded URLs that point to compromised WordPress upload directories and other disposable hosting. These links likely lead to phishing pages or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://coretry.ru/uplcv?utm_term=correct+punctuation+example PDF link annotation
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acb3b7dbff8---27577409441.pdfIn PDF document text
    • https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/d097253ece755d63d267e338bfdadb20/24080428091.pdfIn PDF document text
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d1f9ced1d6c---37367297839.pdfIn PDF document text
    • https://hanedantoptan.com/upload/files/sexazefiwim.pdfIn PDF document text
    • https://coil.hk/upload/files/58642553650.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/g02ulhtpcsa0736fl3g86548th/40894233580.pdfIn PDF document text
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/gtpbhk6atsot310udt2gpl244k/56542933904.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16087b66fe673e---73218718152.pdfIn PDF document text
    • http://smartpaintingplus.com/userfiles/files/wesutopoxiza.pdfIn PDF document text
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a6b31830d98---90589222162.pdfIn PDF document text
    • http://chinhsuasolieu.com/media/files/bojafilaxelaxolopevoj.pdfIn PDF document text
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f93126ca59---83631469032.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087f38e07cbc---35345393002.pdfIn PDF document text
    • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/8958024123837f8609276b6684ecaa40/zunatobetepapobukopojaw.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/06751282b7fef7853f9c24fb3bdbf7f5/63645280932.pdfIn PDF document text
    • https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2fbe9e868---fufotawivubezejosasivufe.pdfIn PDF document text
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b754a040195---vivedawefovuwuxelajipa.pdfIn PDF document text
    • https://dpengineers.info/admin/userfiles/file/videtozas.pdfIn PDF document text
    • http://bowenworktimmins.com/clients/e/ed/ed750a77e36579213b976c45729ba45c/File/87745557215.pdfIn PDF document text
    • https://menlopark.com/wysiwygfiles/file/gowedozezakuko.pdfIn PDF document text
    • https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/ff52c31d09083a461aa3b2b3ed02f569/rijix.pdfIn PDF document text
    • http://rebizplus.com/userfiles/file/1686360728.pdfIn PDF document text
    • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/e7303834be641813b8f105ea05384232/4811175994.pdfIn PDF document text
    • https://juraganmonyet.com/contents//files/rurovijofajipojafozeni.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_off0000f1c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000109d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109D9 18420 bytes
SHA-256: 67cb10f9961fc717d459b2af0e22d82d434f8d51aba242fb1b60820dae1a764a
font_02_sfnt_off00013aaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AAF 10600 bytes
SHA-256: 2d91f6e3d5380482fb3d69f40c4efe3556ee1dce65fbc8d415ed1d8d9a6a6132

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