Malicious PDF — malware analysis report

Static analysis result for SHA-256 224c91fd5d482ff1…

MALICIOUS

PDF

69.8 KB Created: 2021-09-26 17:00:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-23
MD5: 232bd18cbec2cd2250580eb899c25a90 SHA-1: aad1878b3a99b42228ef16cbb1068f465b61fcb1 SHA-256: 224c91fd5d482ff1961ce42a0ba40f25630a35a4d4f64a676eadbbc32ac6e136
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/960118d10b38ea30dfd3da3221c1cdf4/magozudoxemojafowotedir.pdf In PDF document text
    • http://skontrolsengineering.com/file_media/file_image/file/97731923474.pdfIn PDF document text
    • http://dinskayarealty.ru/media/file/80180899412.pdfIn PDF document text
    • http://vdi.vn/userfiles/file/15680541006.pdfIn PDF document text
    • http://marienoellebermond.com/img/uploaded/file/logopel.pdfIn PDF document text
    • https://bi-kiesabbau.de/cmsimple/images/file/batogelisaxovuzesurowax.pdfIn PDF document text
    • http://vuason.vn/upload/files/tiruzonexikepiwiji.pdfIn PDF document text
    • https://pierreseche.fr/userfiles/file/21073762382.pdfIn PDF document text
    • http://thrifty-uy.com/files/others/98795296298.pdfIn PDF document text
    • https://zoomkish.com/basefile/zoomkishcom/files/mififiput.pdfIn PDF document text
    • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/e2bc8b7257a954c87ae0ca0e94c8da51/jubetanegupuxetubuwi.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/161327e892ef5a---juwijafoluzevufemuxu.pdfIn PDF document text
    • http://rkenterprisesonline.com/FCKeditor/file/12070571212.pdfIn PDF document text
    • http://pnktools-th.org/ckfinder/userfiles/files/71381132518.pdfIn PDF document text
    • http://gamax-motor.cz/data/dokumenty/81789837077.pdfIn PDF document text
    • http://cableesmaltado.com/d/files/sasejarupilijidavimifu.pdfIn PDF document text
    • https://starfoil-mail.nl/uploads/wysiwyg/nodobepujetenugilu.pdfIn PDF document text
    • http://artgrafika.cz/userfiles/file/66000227234.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613148d89023d---91132155440.pdfIn PDF document text
    • http://bibikid.ru/upload/60131074796.pdfIn PDF document text
    • http://xn--80aadcnaeutgftohcogh8i8dsc.xn--p1ai/pict/file/xopukepazidomomexagoduba.pdfIn PDF document text
    • http://mecaniquekd.ca/upload/file/dedofideverovulujiseros.pdfIn PDF document text
    • https://bluza-shop.ru/content/File/zovorepoguvojetoxazaka.pdfIn PDF document text
    • http://aorganboys.handyfriendship.com/upload/files/72899496985.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=pokemon+emerald+codebreaker+codes+rare+candyPDF 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 extracted file (font_00_sfnt_off0000b011.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b011.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB011 10688 bytes
SHA-256: e2397dcaf256910099c95f0ad9493367508e0ed80a1b0534396fc4a4571bc48b
font_01_sfnt_off0000c897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC897 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e0a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A9 15460 bytes
SHA-256: de10409c1d4da29afa65eacb01420c02b2b55f59eeb0d4a784458b8a0e0f7d5a