Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b062812b8b2d88…

MALICIOUS

PDF

75.6 KB Created: 2021-07-25 08:35:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: def5dff3cfeabef1f7593bf654238382 SHA-1: f8340afb4d9b36e8d919dc3da7a8f25cf94cb270 SHA-256: 72b062812b8b2d88160842ed47d89bdb9d8b5e7baab28f99798995aa00c0b60b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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 https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/c459ce34d4faf2bd22be9cb065b88f6a/nebunebuvonajita.pdf In PDF document text
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1609087ac72625---40400200406.pdfIn PDF document text
    • http://pagyesa.org/userfiles/file/20210620235203.pdfIn PDF document text
    • http://tizianaiberti.it/userfiles/files/lobexabomevoxaseragepe.pdfIn PDF document text
    • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609835d9ae4eb---12452613466.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609884f9283a2---10748399041.pdfIn PDF document text
    • http://progfin.pl/userfiles/file/49326102203.pdfIn PDF document text
    • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/3aac0a0fb81adc19425c944034f95386/17366159313.pdfIn PDF document text
    • http://5lovestartw.com/CKEdit/upload/files/gawudo.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/180e150edecc10fc892195b48ad9a3a2/72235741232.pdfIn PDF document text
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/fcdc0ab88c439a7d2df732dd2860259d/78749233752.pdfIn PDF document text
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/e86dfe722ec9503c1ecfef91697be98f/sexiwoxikamevozekage.pdfIn PDF document text
    • https://pmfegypt.com/userfiles/files/89582095815.pdfIn PDF document text
    • http://szpital-sulecin.pl/images/fckfiles/file/44509470905.pdfIn PDF document text
    • https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2fd730ea2a---56579591809.pdfIn PDF document text
    • https://newtech-utm.pl/userfiles/file/gavomemufopoji.pdfIn PDF document text
    • http://studiorestagno.eu/userfiles/files/84876785312.pdfIn PDF document text
    • http://gabortech.comadmin/file/dajopijuwov.pdfIn PDF document text
    • https://selltoob.in/ci/userfiles/files/89906589862.pdfIn PDF document text
    • http://93564497.com/userfiles/56318882746.pdfIn PDF document text
    • https://hazeloyun.com/calisma2/files/uploads/pukefigimudam.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+prank+a+wrong+number+textPDF 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_off0000c616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC616 16268 bytes
SHA-256: d8dd7390e05cfb3f97bec551e358195e4f3876a0cd775493949665343e5af084
font_01_sfnt_off0000f026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF026 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001083d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1083D 10800 bytes
SHA-256: 7adb5a8d4abf9b07154ed84fdd606b9e68277af819f70696e4bf94fd832d16db