Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e97af3c98b8e08e…

MALICIOUS

PDF

90.7 KB Created: 2021-07-21 04:49:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 57abf6d4c8e44050de90d5b65c5def76 SHA-1: 811ec54d029d350e3ef7b6ba37e1fe53c78dbbaf SHA-256: 6e97af3c98b8e08ed6905a09720ba79800dfc89ec5d534c84ce259bdec490ae9
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that contains a link farm pointing to compromised WordPress upload storage, indicating an attempt to host malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://amenajarisiconstructii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160767374277e7---48308576090.pdf In PDF document text
    • https://www.champagne-cornevin.fr/ckfinder/userfiles/files/tojawonoviwilopobewusaz.pdfIn PDF document text
    • http://ciaooo.ru/uploades/userfiles/file/2723262376.pdfIn PDF document text
    • http://simonide.org/userfiles/file/kijajesofebaxo.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/5b13c48a106877c32f2b665b82bcf5a6/mavazikigabejowe.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092177cc1801---nizoxevolejudowagito.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608674b99bd77---rozosogaviwenejovefe.pdfIn PDF document text
    • https://simon-daulte.com/ckfinder/userfiles/files/vipuwivobanikuximoja.pdfIn PDF document text
    • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/1596e8c63e910a5208fd316e907857ee/81484675534.pdfIn PDF document text
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/57ca9b856355672c3da3c06f7ab6bb93/8175536284.pdfIn PDF document text
    • http://www.gonouvellezelande.com/files/disagobuwav.pdfIn PDF document text
    • https://contabil-fiscal.ro/mm/file/sagoxofajamem.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608217f000cbb---zunusagedoxozalaza.pdfIn PDF document text
    • http://doubles301.jp/files/ckeditor/files/58276690105.pdfIn PDF document text
    • http://natur-pet.cz/webpagebuilder/ckfinder/userfiles/files/65698586709.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ae81c8666---37053219502.pdfIn PDF document text
    • http://color-gateway.com/userfiles/file/76788743960.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160a71e3d5fe82---sufifomuvejakapisusisigi.pdfIn PDF document text
    • https://sealordhotels.com/ckfinder/userfiles/files/46234818881.pdfIn PDF document text
    • https://gyn-koe70.de/obrazky/file/nixisebaninuseputifuti.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/bdde1f1bef5208005ba9c47f17141d75/68945958783.pdfIn PDF document text
    • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a32b3cc7aec---tepisazit.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/ars5v24l44mh3b5al8skgftb07/7180346714.pdfIn PDF document text
    • https://best-label.com/upload/files/zakuxekarawovudab.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=shredded+chicken+and+gravy+stove+topPDF 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_off0000fe46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE46 11092 bytes
SHA-256: 16001c91a16e7fe78a6555dc44d5bfd2ccf266cc90aeaac66a34992de2b6c046
font_01_sfnt_off000117ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117EA 17392 bytes
SHA-256: 4708413cf9dd4671cac4616c6e18679d1bb6c6751f9d5e24ff6659ea5e5148ed
font_02_sfnt_off0001454a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1454A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1