Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd702af8b3dc7870…

MALICIOUS

PDF

67.3 KB Created: 2021-09-12 20:51:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: ecb06db3216da9ae9d68b28a17385501 SHA-1: c87058c5a6db2f1e2fdc43571deb2e153c45fdb7 SHA-256: cd702af8b3dc7870565928fec5470d4616a5d746774bb62be0f7e3dfea85050f
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9851

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://christmaslandint.com/userfiles/1272815309.pdf In PDF document text
    • https://topclassgardening.nl/images/file/91287242966.pdfIn PDF document text
    • http://rana-international.com/userfiles/files/nulefogipibiravibuf.pdfIn PDF document text
    • http://www.de.ruben.pl/ckfinder/userfiles/files/burafofodusosoloja.pdfIn PDF document text
    • http://studiocommercialedelpiano.it/userfiles/files/5126556024.pdfIn PDF document text
    • http://trendstyleimage.com/uploads/ckfinder/userfiles/files/21032229807.pdfIn PDF document text
    • https://ahirealty.in/admin/userfiles/files/87392501270.pdfIn PDF document text
    • https://mobspace.xyz/web/img/podborky/files/zudebawirenoridib.pdfIn PDF document text
    • https://mimpiindah2.com/contents/files/razudurukopirizesazufu.pdfIn PDF document text
    • https://www.passion-rnd.com/upfile/files/2021/09/12/19773440083.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/fifemoluvamafoxuwug.pdfIn PDF document text
    • http://phutungototuanphat.com/img-tvdl/files/tatizukatilujusewi.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0912e934a---18062975777.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a927e25526---96102774610.pdfIn PDF document text
    • http://khojedu.net/userfiles/file/larijeme.pdfIn PDF document text
    • http://due.pt/js/ckfinder/userfiles/files/zufevijenif.pdfIn PDF document text
    • http://fkhd.cz/data/img/jozomiloxivalewulamelo.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/85112322929.pdfIn PDF document text
    • http://mtt-association.fr/upload/file/julowupikurenorijad.pdfIn PDF document text
    • https://magnanelli.com/userfiles/file/89840700224.pdfIn PDF document text
    • http://aquamedia.cn/ckfinder/userfiles/files/88707413386.pdfIn PDF document text
    • https://ebooksweb.net/files/file/wolezadog.pdfIn PDF document text
    • https://marblo.com/app/webroot/img/files/pokudikumosuxujuwab.pdfIn PDF document text
    • http://dietetyka-24.pl/images/files/pulikab.pdfIn PDF document text
    • https://autosaloncenter.com/uploads/files/dananoregotivinopasesajus.pdfIn PDF document text
    • http://studiostocchi.eu/userfiles/files/51185373398.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=d%26d+icespire+peak+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_off0000b1da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1DA 14376 bytes
SHA-256: 58d193bfdb0563deecd07b61f3c6483ed46bbcc02292c4a2911bd34dfdfb8787
font_01_sfnt_off0000d5b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B2 9076 bytes
SHA-256: f695977626623e59fedb2fbedebd468d0acf89ff6f6ceafeb3cee4351ddee6c8
font_02_sfnt_off0000e857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE857 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1