Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87a2528e600f940…

MALICIOUS

PDF

91.0 KB Created: 2021-08-22 03:31:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 2f2cb67721a43f058f2834af79756291 SHA-1: 9e42e2aaf3423c173bdcbb31b1510658970fcd2c SHA-256: f87a2528e600f94076f1e3d045b1fb818365f36e4e18864cba46e61e2fe7fb82
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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 http://alphabodysupplements.com/newerac2c/userfiles/file/jijoto.pdf In PDF document text
    • http://wang023spa.com/userfiles/202106file/2021062219065970554.pdfIn PDF document text
    • http://aldo-ins.com/userfiles/file/lodolisuvizixaxiziluwasa.pdfIn PDF document text
    • http://tentimesneedlehill.com/UPFILE/userfiles/files/tagovunevogixunogolen.pdfIn PDF document text
    • http://mesahighclassof63.com/clients/79820/File/78751909978.pdfIn PDF document text
    • http://fisioterapiasuzzara.it/userfiles/files/31390510278.pdfIn PDF document text
    • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609faf19d6f0e---kavusafebopanizixapevi.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160894e3d4c528---49656229540.pdfIn PDF document text
    • https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/007d8c3a866807a54772c5f3da2e3ef4/71951335178.pdfIn PDF document text
    • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16102bae5ba815---93842015202.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c6ed9d0f712---polalanol.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b782f5bb1c3---gokafekozimabiwamagotor.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ad32529ef6e---sewetigawovupi.pdfIn PDF document text
    • https://jackinthegymtpe.com/uploads//files/202108041642461777.pdfIn PDF document text
    • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/5dbd263cbe2d213eb6df4c4b3a256710/xexenamodifonifitovom.pdfIn PDF document text
    • https://bamor.org/userfiles/file/webexovobobunez.pdfIn PDF document text
    • http://ptsound.com/plugins/ckfinder/userfiles/files/vukivebipadomefarupu.pdfIn PDF document text
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba094a97c0f---gojikuwinimefuxe.pdfIn PDF document text
    • http://shannonlakeestates.org/fck_images/file/80615387138.pdfIn PDF document text
    • http://rowsontw.com/shopadmin/upload/files/74639846836.pdfIn PDF document text
    • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dd914260988---39767774369.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/38la1lvss7nfqp6t68bapevkrv/38628402748.pdfIn PDF document text
    • http://rogersdesignhouse.com/uploads/files/dufagozigonasatomosufu.pdfIn PDF document text
    • http://badaranquehablar.com/userfiles/files/9552924709.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+write+a+30+60+90+day+plan+for+interviewPDF 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_off0000ff83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF83 16636 bytes
SHA-256: c012bedad1237ae77e396a2eb5e36447361cc9570c184214fce70776e47bf4bd
font_01_sfnt_off00012aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AA2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000142b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142B9 11208 bytes
SHA-256: 3a78b883de66e24bac4ff086390c2a532371ff52eaae52311d66fb529376c113