Malicious PDF — malware analysis report

Static analysis result for SHA-256 19112a330911b963…

MALICIOUS

PDF

90.7 KB Created: 2021-09-06 15:29:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 1143af6c4f23d9aff1f791e7b664ec6f SHA-1: 6faf0a19b5ac3e5a5dc0ab99c53065f82f5d041f SHA-256: 19112a330911b963ac4afd3aa99393f5ab5f699a075aff83265dd8417e07bdc5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://slbreakingnews.com/ckfinder/userfiles/files/576662105.pdf In PDF document text
    • http://thallo-food.hu/uploads/ckfinder/userfiles/files/jobasaso.pdfIn PDF document text
    • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/9ai2d0lhqp166ca3ucn3kmu327/52317517570.pdfIn PDF document text
    • http://cambresisemploi.fr/ckfinder/userfiles/files/7155156968.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16132cb65194d9---63986507913.pdfIn PDF document text
    • http://alnadaoil.com/userfiles/file/54488635896.pdfIn PDF document text
    • http://china-hold.com/UploadFile/file/20210517030920264.pdfIn PDF document text
    • http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/k29pm7kqjuk7kh1hldof8s3j50/5752693513.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/b21d74984605c592c933a4c4a23b5df7/34678422423.pdfIn PDF document text
    • https://birudongker.com/contents//files/31479054330.pdfIn PDF document text
    • https://fablab808.com/nbloom/fckuploads/file/35284651408.pdfIn PDF document text
    • https://yourownadviser.com/ckfinder/userfiles/files/revukoxur.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/6d7a9a94f227ef788f4863544bdd26be/lesebokojodusewubulav.pdfIn PDF document text
    • http://www.firengo.com/userfiles/files/wifugosal.pdfIn PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1d7baf7b4---tanus.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16096a763e76d3---raxetonigur.pdfIn PDF document text
    • https://viettrungson.com/media/Files/denarutesiwe.pdfIn PDF document text
    • https://digidatadecolombia.com/wp-content/plugins/super-forms/uploads/php/files/53521756f3ebf078c22873918952f2ce/pixojaxa.pdfIn PDF document text
    • http://wtmongolia.com/materials/file/sewibojiwix.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160fbc5f816187---18423407688.pdfIn PDF document text
    • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/160be245c7cd01---1108818970.pdfIn PDF document text
    • https://terryhaas.com/wp-content/plugins/super-forms/uploads/php/files/a46c6114d3389432fbf2ef4f97be918b/83966620859.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c16e16eaf---64356385806.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=leyes+ponderales+pdfPDF 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_off0000f8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000110b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110B2 20432 bytes
SHA-256: caec3e77ae323301d38d46f9d6d1699b9bb005f40f6ab2ab813123849c975a88
font_02_sfnt_off00014453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14453 10372 bytes
SHA-256: 07d9e10cd3dd4993510c7cc5628708407fd77c34f2de2dc1ab7b07d5ffc39ef5