Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9290681b16090f7…

MALICIOUS

PDF

88.4 KB Created: 2021-06-28 08:22:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d2134b08108194a0d21d7e7fc08d27bc SHA-1: 72c805a6d2f385ee2bd53be563810050f5ca0c99 SHA-256: b9290681b16090f77de64a8c6cb380939bcb6ac430fa2d0339404c00bc952140
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The file contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm or phishing lure. While no scripts were explicitly extracted, the nature of the links and the detection as a Trojan indicate it likely serves as a dropper or redirects to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/c2baf0d3b786c0f49bb7e686d81065b4/54804430826.pdf In PDF document text
    • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16099b54b1e7b4---44108902736.pdfIn PDF document text
    • http://2ds-creations.fr/userfiles/file/68566111968.pdfIn PDF document text
    • http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082a6e2e096f---lutezikif.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f488f212a---kinofomenapuvotenifetil.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078ac158ef08---vipapobolupotijavizato.pdfIn PDF document text
    • https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/a5837f8bc673857646fa02b364439e81/sakonavujulad.pdfIn PDF document text
    • https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/1f7e7ea867377dbd153a24033e3225a2/ganin.pdfIn PDF document text
    • http://mahlkoenig.nl/app/webroot/files/userfiles/files/digubozapiset.pdfIn PDF document text
    • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac9c8165183---gavadibinonawesadoxo.pdfIn PDF document text
    • http://mediaworld.pro/ckfinder/userfiles/files/fewafuwijigavamum.pdfIn PDF document text
    • http://aaaexpressac.com/userfiles/file/rumolijilatilo.pdfIn PDF document text
    • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/e96a4d790f2dd7598fe5294cba1bff48/95523759306.pdfIn PDF document text
    • http://asbufestival.com/uploads/FCK_files/file/lozopozonumopigusalok.pdfIn PDF document text
    • https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/hfioeu6d0rre5qa4n3sdv6fe10/21937544588.pdfIn PDF document text
    • https://allcreaturesinc.com/files/files/pizaxitimi.pdfIn PDF document text
    • http://fygl.net/uploads/file/220045176205.pdfIn PDF document text
    • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/e5be3ca50cc734e33059a08118e5755a/31932012865.pdfIn PDF document text
    • http://mp-hd.de/data/aktualnosci_imgs/file/25792448473.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608cb44aa666d---pasirumugi.pdfIn PDF document text
    • http://ksnjl.com/userfiles/files/xasewoborolelubanidefunon.pdfIn PDF document text
    • http://busankid.com/webfiles/board/file///vasozosijowadorutaromi.pdfIn PDF document text
    • https://alutat.com/data/file/24310502504.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=asthma+attack+and+anxietyPDF 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_off0000f7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7CD 10660 bytes
SHA-256: 47ed4cba91589f102b78e987f378651b4f65553256a2a0a3ee2d05d5c4b260ea
font_01_sfnt_off00011020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11020 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12832 16876 bytes
SHA-256: 173872f81afbdfc4f97ead457986391728672985500795c31c08e1ec63049eb7

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