Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b5f523afd920c3…

MALICIOUS

PDF

91.9 KB Created: 2021-08-08 13:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 67260fbfc683ef39328c0dca36e62a35 SHA-1: a736822f8cc99870bb8cd5c42057ee57793fcbe8 SHA-256: 72b5f523afd920c3dc61090c074dc75da14f8b11d1d4bcd354403f92226a2e4d
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

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 http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa569a8dde---69647547796.pdf In PDF document text
    • http://gramercy-grand.ru/files/file/81578541042.pdfIn PDF document text
    • http://taeguektour.com/FileData/ckfinder/files/20210724_9A6728B19A936CE7.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7b42b89eb8e1d91c830c72f8e599c51b/fabazumopijipux.pdfIn PDF document text
    • https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/eb6216ace521d30a8ccb2c5533d9ef53/pefadir.pdfIn PDF document text
    • http://banghetretruc.com/media/ftp/file/vilajuxefe.pdfIn PDF document text
    • http://ngoinvest.com/uploads/ckfinder/files/fugiverepojimaj.pdfIn PDF document text
    • http://yourhealthyanswer.com/ckfinder/userfiles/files/bixarelejofegijevonona.pdfIn PDF document text
    • http://dfwarbitrator.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/6028912331.pdfIn PDF document text
    • http://inciboya.com/resimler/site/files/86783388963.pdfIn PDF document text
    • http://vds-construct.pl/userfiles/file/19016029263.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ae9fa7a30ab---92037183077.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4bfda03a3---xibum.pdfIn PDF document text
    • http://af.ssla.ru/images/fornews/files/xusika.pdfIn PDF document text
    • https://topplene.com/upload/ckfinder_temp/files/20210619210705.pdfIn PDF document text
    • http://ozanatalan.com/iboard/includes/userfiles/files/62456521483.pdfIn PDF document text
    • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/b808cc6fd484b8cf83e96cf83524be9b/zevelifeliwevavafu.pdfIn PDF document text
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/55cd8510aed35014401c8a9705266a46/zukimofedaze.pdfIn PDF document text
    • http://nsureunion.com/clients/71556/File/valebos.pdfIn PDF document text
    • http://e-kva.ru/admin/ckfinder/userfiles/files/wogovepitakazuvelevul.pdfIn PDF document text
    • http://opuspointpartners.com/ckfinder/userfiles/files/96241486030.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/9aeieomjp3eeir1ckhsriaticg/dipolosizunulipozesi.pdfIn PDF document text
    • https://scapetime.net/images/website/user/files/pufidorodipodukano.pdfIn PDF document text
    • https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/79906b5ed8fc58c92232c5fe9c6a2c66/tosugamudokare.pdfIn PDF document text
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/gvabmr6qvoa7vd05uj6rrnde59/xefivikunepas.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/43e65712a324125271ee5a32be04de77/55540279385.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=nvidia+high+definition+audio+driver+windows+7+64+bit+updatePDF 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_off000100a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100A4 17448 bytes
SHA-256: 7976784d97e88e9c4409fe05a19864d94b8b066d3b57731562b7fe59ccdeaae4
font_01_sfnt_off00012e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7F 11396 bytes
SHA-256: 25f0555d6c188bf37675038606bd021f03f07084615de9b32df736aa14ce7849
font_02_sfnt_off00014913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14913 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1