Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4ab9387e38e7b1…

MALICIOUS

PDF

82.5 KB Created: 2021-07-03 15:59:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ad4beecf2fe29603e8ff291115cdd66f SHA-1: 1aed183cd81499de1f208921e3246cbc72e2cc17 SHA-256: 7e4ab9387e38e7b1564cab171b3c518cf2fd00e1a69ae7908267a6b8aab58a41
156 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent. No scripts were extracted, but the structure and URL patterns are consistent with phishing or malware delivery campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

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://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607650e85c2e7---nodet.pdf In PDF document text
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/b4f82f43028bac930cf8551db37035e4/rukogeli.pdfIn PDF document text
    • http://thunderstar.cn/userfiles/file/20210508171455791181488.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aff0bacaa8---mekejade.pdfIn PDF document text
    • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/ae9da0e8478d80588c3210c0f552fbc7/11087341470.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/4odo9f81r7joi162gu1ngmk6u7/lafurixi.pdfIn PDF document text
    • http://mediaworld.pro/ckfinder/userfiles/files/87141849988.pdfIn PDF document text
    • http://huucodatlanh.com/userfiles/file/rafotemekoxaku.pdfIn PDF document text
    • http://holmeslawfirm-iowa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zedilotixemozijirezuxi.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609a6be123e4e---werupinepigaxuzawewifuf.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d01c0a553---65515785673.pdfIn PDF document text
    • http://jyjwqj.com/uploadfile/file///2021052116571837.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094b4ffc475f---rotavojujekezaju.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c639fe5e8f---bukor.pdfIn PDF document text
    • https://promise-land.com/upload/file/25998828786.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d044e8cdf04---biboza.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bc33b242fd1---dedipeniduxare.pdfIn PDF document text
    • http://hglobaltour.com/FileData/ckfinder/files/20210607_FB6D8EE84AF5A4E0.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e70b25c0f6---givujesozazano.pdfIn PDF document text
    • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/4lfj8gcc3jlg0k190dofuhtpn2/mijiniridimukenuridaf.pdfIn PDF document text
    • http://ccspatti.org/userfiles/file/32432934106.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160701f3479f53---95282163881.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1a657308d6---72018202723.pdfIn PDF document text
    • https://atamergranit.com/userfiles/file/xaxelabivesujus.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab53b66bc27---pusoletugenaga.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=meaning+of+barrenessPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c73b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC73B 10376 bytes
SHA-256: 36c85440638a2a12347cd73fe823d876d48f90ea3510e434db3dc204625b2cca
font_01_sfnt_off0000decd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f6df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6DF 16860 bytes
SHA-256: e5c10639c90788621298ccc6ad3bc9a2bf9e303b62b8912a0df98e2b10e2299f
font_03_sfnt_off000122c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122C6 17192 bytes
SHA-256: f8f7a05aff03859becdf1bdf1ccd19bfecb564af053070ce0cbbf97aebd6caf2