Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfeb92a51a12524a…

MALICIOUS

PDF

99.9 KB Created: 2021-06-26 00:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e5beedaba059c6bf901e0967c44da692 SHA-1: b4d48a0e554b26e95d1cec9aedbdc6273c5d335d SHA-256: bfeb92a51a12524a391c495f30b87e617c3668cd3bc1b086a8cee54f1b07f6d6
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains a large number of external URIs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed for phishing or malware distribution. The document's structure and numerous links indicate an attempt to direct users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9872

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://queure.ru/uplcv?utm_term=best+spring+hikes+in+oregon PDF link annotation
    • http://dolphinegypt.net/userfiles/file/26643860779.pdfIn PDF document text
    • http://ildungrice.com/fileupload/fckeditor/file/91017640635.pdfIn PDF document text
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bda21515640---wovatuzidujupe.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075517203b82---25280135711.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16082aff5e8977---punanajudeduj.pdfIn PDF document text
    • http://hookmyweddingup.net/clients/73542/File/xaxudokas.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091cc3a55ed3---93041096642.pdfIn PDF document text
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/120fc02311e4f30be5646c09ef5a768d/jagisozagololubewuxirike.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/aad819e04afde8a451647ded4b8b03ac/zigifiluwavijomozaged.pdfIn PDF document text
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c093f61f85c---24959327207.pdfIn PDF document text
    • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094bb71077f1---xilabikerugowaviwete.pdfIn PDF document text
    • http://alnadaoil.com/userfiles/file/balowiwowemuwafobi.pdfIn PDF document text
    • https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/16086ff58a6e7d---55445873951.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/2ae6a99a24243f393ae238391a2a185d/58945697814.pdfIn PDF document text
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/da17e344f9e3131368c1d84f2877c978/93301628833.pdfIn PDF document text
    • http://mistral-paints.cz/userfiles/files/jilutapodef.pdfIn PDF document text
    • https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/1afed8945e9fcb3f86332f58a070d9b9/konitijuzaxakopalixofuwam.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160881dbaeed14---worutupefowe.pdfIn PDF document text
    • http://rgn2u.com/userfiles/files/97690375377.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf7f3f75f62---xireneduwuwoguru.pdfIn PDF document text
    • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/1171fe769e5029606e0848c17aaf0a2b/sisiru.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9f13111f5---6548877902.pdfIn PDF document text
    • https://haltia.mx/sii/ckfinder/userfiles/files/gesakedi.pdfIn PDF document text
    • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/739ebd2065306c69ea3ae3b8b51978a1/finomolosivoziviv.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/47386709153.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D87 17736 bytes
SHA-256: 43a44f1c1344f230cae206e7b032d185a1ce970d6f4f58ee1abd487f17b5f732
font_01_sfnt_off00013bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BF7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00015408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15408 16312 bytes
SHA-256: 7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae
font_03_sfnt_off00016a14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A14 10468 bytes
SHA-256: 74d5cc0db5b556d7d77d1c58b46786e504e099776e3c7d99f2ea75b4609fbfb6

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