Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd2712d77ea7753…

MALICIOUS

PDF

66.2 KB Created: 2021-11-25 22:59:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 1fce0ea008b41baf792e6bb2caba0374 SHA-1: 016b78329641bbb9618fb538c7aa121a5b80864f SHA-256: 3dd2712d77ea77535c2f706ce526c921d4aed0bd53230c2f3bc4ec4a92df6bcd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://tries.cz/media/images/upload/file/mamegavolidabulur.pdf In PDF document text
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613175d367031---detupizezivobebome.pdfIn PDF document text
    • http://mn-print.ru/ckfinder/userfiles/files/dinanuresonis.pdfIn PDF document text
    • http://buyyoutubelikes.com/ci/userfiles/files/jenogos.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/fd257ef631cbf0a65537296975acdbd6/32217594674.pdfIn PDF document text
    • http://toflight.mobi/attachment/ckeditor/files/df79a13bbcee5c185800d634fa47cd38.pdfIn PDF document text
    • https://exihomes.com/userfiles/files/bedumixetivujafujejogatuv.pdfIn PDF document text
    • https://ddtoyz.com/ckfinder/userfiles/files/78074988551.pdfIn PDF document text
    • https://askflip.com/uploads/files/mifubijibog.pdfIn PDF document text
    • http://babyindex.nl/images/uploads/pedudezupad.pdfIn PDF document text
    • http://ivankrivanek.com/userfiles/file/mofanaxobexewasoviwejusud.pdfIn PDF document text
    • http://valosagoskincsesbanya.com/upload/file/60996178055.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/eb5b10e8dbae6e003ab94c4b08f42491/92023295172.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1618853c8244d3---bumofe.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16196f732abe65---vunakezi.pdfIn PDF document text
    • http://fillaracingacademy.cz/ckfinder/userfiles/files/15252224840.pdfIn PDF document text
    • https://somogyplusz.hu/files/zogig.pdfIn PDF document text
    • http://www.nachtruhe.info/up/files/36806233137.pdfIn PDF document text
    • http://connect-event.fr/ckfinder/userfiles/files/noxajulonodaf.pdfIn PDF document text
    • http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/73408316986.pdfIn PDF document text
    • http://studioingegneriavaragnolo.com/userfiles/files/ladifonoxefex.pdfIn PDF document text
    • http://k1a.ru/images/files/file/13117844082.pdfIn PDF document text
    • https://mallncart.com/userfiles/files/9864635005.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BGAemAmcdTc/uplcv?utm_term=kero+sun+kerosene+heater+partsPDF 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_off0000a2cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2CB 10396 bytes
SHA-256: 94a8328b5e70b5e26385103180056e28d64d38cf7d8080633797ee4d5f239091
font_01_sfnt_off0000ba54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA54 16204 bytes
SHA-256: b11e6768b27f3632fcb5679e7d5cf5a2a80f360d265afc6a7d668da0e0f140d3
font_02_sfnt_off0000e436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE436 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336