Malicious PDF — malware analysis report

Static analysis result for SHA-256 793a9f8058703a43…

MALICIOUS

PDF

84.7 KB Created: 2021-08-25 05:01:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 8a89bae2ee9dea34faaa996efb2121d5 SHA-1: 6c6cf5e5acaff92618ae34f76cd887577ec9efb8 SHA-256: 793a9f8058703a43e57e92356d4c77bbf300f1e345d7c4ab05a9c14afd4a7c5a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/ee514518c07a7b415bec70519ef2db0f/givumavepuwudebu.pdf In PDF document text
    • http://thestarbusan.com/FileData/ckfinder/files/20210704_409825E16A081997.pdfIn PDF document text
    • http://bannhuaduong.net/upload/files/1347982866.pdfIn PDF document text
    • http://birzebbugastpetersfc.com/files/file/68403840881.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608596a1a367e---9874639174.pdfIn PDF document text
    • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/33913722979.pdfIn PDF document text
    • http://jrpst.pl/userfiles/file/4629986523.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ed99e65bf19---14104990050.pdfIn PDF document text
    • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/8b579a1f5736fcb098ca020c695beac4/subujosi.pdfIn PDF document text
    • http://finemetal-cn.com/upload/files/zozadoviwoxateg.pdfIn PDF document text
    • https://triosms.com/userfiles/file/lidexanosu.pdfIn PDF document text
    • http://cityhigh78.com/clients/2/2d/2ddbae4fb74c169819b3574d76e4e264/File/75346790562.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160fb8e616e196---83829958329.pdfIn PDF document text
    • http://edgecs.net/documents/54897825958.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c91c7c8e13---rerikerewalinuz.pdfIn PDF document text
    • http://bmsorganica.com/userfiles/file/zomolonitesero.pdfIn PDF document text
    • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/e8c462bb901cf7072623260f1d1cd267/dukekikedisulasabubet.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/cf70ceedf3152554e31d164f04b39716/83669653517.pdfIn PDF document text
    • http://ud2-140.com/files/vewutozofemowolax.pdfIn PDF document text
    • http://madinaboys.com/easydo%20v2.00/files/uploads/42643404388.pdfIn PDF document text
    • http://harasim.cz/uploaded/files/34738152833.pdfIn PDF document text
    • http://irinka.org/ckfinder/userfiles/files/bomilet.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a50f27bfb10---jetigu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=letter+of+intent+to+donatePDF 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_off0000e6fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6FB 10092 bytes
SHA-256: 8a6a1ce9cb53b358ddf816685e0d44eb4adb6a25080e87539a5b8d9405434e20
font_01_sfnt_off0000fd8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD8C 17596 bytes
SHA-256: 68c4505fc549f9e06f46faaf9c6cddb173f77776658d558b26c832ed9a6ac901
font_02_sfnt_off00012bf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BF8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1