Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bb56a0e48ce56a3…

MALICIOUS

PDF

46.9 KB Created: 2021-09-04 15:37:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: eb79b8b306a2ddc37f45fd8e4d065657 SHA-1: c0d6ca919fa99d81ef2c24551b4877320595531d SHA-256: 9bb56a0e48ce56a33368862c593c755d73bad080d38d88a3758b52f1592eeed2
154 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs are likely used to redirect users to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7958

Heuristics 5

  • 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
  • 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://allytemp.ru/uplcv?utm_term=shadi+anudan+form+download+pdf+obc PDF link annotation
    • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/npt983ljhr2ocqqd3odjtj1q86/bumupevelesigodejasepafo.pdfIn PDF document text
    • http://apnorajasthan.net/userfiles/file/salogiwagexaxesi.pdfIn PDF document text
    • http://akinmedical.com/uploads/file/xoritutuwoladuwodifonexob.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/b5u3o32nmi5aq6cfgmv3lieg5d/renuzugijudubowojozuf.pdfIn PDF document text
    • http://101eyewear.com/luutru/files/95342876060.pdfIn PDF document text
    • https://actorconseil.com/files/file/votakeboxogaxatuzo.pdfIn PDF document text
    • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/7f6a972ee8f0981d86cdec0b508923ef/79531865451.pdfIn PDF document text
    • http://rolmech-strzelno.pl/Upload/file/39945557097.pdfIn PDF document text
    • http://soft-pro.hr/upload/datoteke/11543282837.pdfIn PDF document text
    • https://apoiotelecom.com/imagens/img_fckeditor/file/dalilisajijaxemiwisadis.pdfIn PDF document text
    • http://wasserburg.pl/userfiles/file/vogixowirisaxefizediv.pdfIn PDF document text
    • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/a2a7d80373f45f37eaeab226712058a8/3849586183.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/86588317785.pdfIn PDF document text
    • http://www.vnos.vn/app/webroot/uploads/files/96754515690.pdfIn PDF document text
    • https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a443c05c58---kigigowu.pdfIn PDF document text
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/937f005be35c5fc33ce81c9c590432ae/76076354195.pdfIn PDF document text
    • https://tortugafilms.ca/adminfiles/file/3821462486.pdfIn PDF document text
    • http://sovaimm.it/userfiles/files/lofejojugizokoketivi.pdfIn PDF document text
    • https://aronabritcan.com/userfiles/file/50876018726.pdfIn PDF document text
    • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/1c37e643c29faa5e14a70482dfb678f4/domopinipefusemofale.pdfIn PDF document text
    • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a65c1027de1---nizebamekotugexutaw.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/08dd2868f0c1d84c6106c3a998c1f0d6/96645471426.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/161317296b1f10---mevododesolajalafinu.pdfIn PDF document text
    • http://szjglaw.com/uploadfile/file/2021090413205773499.pdfIn PDF document text

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