Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d84150ea90f0c43…

MALICIOUS

PDF

85.4 KB Created: 2021-09-14 11:55:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 71d0da7820760abda8d7e5630e14b70a SHA-1: 6b80c470bc9c4133e0310397680e0717f1373ede SHA-256: 5d84150ea90f0c43b3b671fbb2e5f1cdfeaebea21d425fc5d7bde8fb14e23c95
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://irlanc.ru/uplcv?utm_term=gta+5+game+apk+download+android+phone+without+verification PDF link annotation
    • http://tubietelbar.hu/uploadfile/56540767881.pdfIn PDF document text
    • http://chayka-svg.ru/files/sabejikixagezewepupatovud.pdfIn PDF document text
    • https://a-1commercialkitchenservices.com/ckfinder/userfiles/files/8466416829.pdfIn PDF document text
    • http://studiofelician.com/userfiles/files/jukufaxikaripalovewikajo.pdfIn PDF document text
    • https://photojet.net/userfiles/file/85359932920.pdfIn PDF document text
    • https://rockeit.com/userfiles/file/31442481137.pdfIn PDF document text
    • http://industrialdevices.in/uploads/rolawiwubevud.pdfIn PDF document text
    • http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/denazolowegumenapelukog.pdfIn PDF document text
    • https://pecintajp.com/contents/files/kajonowepamopar.pdfIn PDF document text
    • https://takarasushimn.com/userfiles/files/vipow.pdfIn PDF document text
    • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/dikekunikuwezipabe.pdfIn PDF document text
    • http://modnyi-buket.ru/uploads/files/faganotufuvoxetajovogita.pdfIn PDF document text
    • https://jpjplumbingandheating.com/FCKeditor/file/jumetolujijofapub.pdfIn PDF document text
    • https://avukatwebsitesi.kocgrafik.net/upload/files/69320290718.pdfIn PDF document text
    • http://messtores.ca/fck_user_files/file/24255424714.pdfIn PDF document text
    • http://laihoawedding.com/app/webroot/upload/files/13361300169.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161372abc86117---vorisejoxire.pdfIn PDF document text
    • http://firegallery.ru/img/upload/pijalobupukaz.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/bcc54a788b23e9c63db4b4d571c95e91/kejakuwinuvagodux.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16136189f24f28---41120784900.pdfIn PDF document text
    • http://www.ciesol.com/ckfinder/userfiles/files/24085552998.pdfIn PDF document text
    • https://mystruggle.uk/indigo/ckfinder/userfiles/files/bodofebodedonaz.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135bffc82946---30344176215.pdfIn PDF document text
    • https://kltccompany.com/ckfinder/userfiles/files/wosusolate.pdfIn PDF document text
    • https://fishuntpesca.it/file/83135267901.pdfIn PDF document text
    • 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_off0000e524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE524 18420 bytes
SHA-256: 7f28eac19a756407ec13414720437b6edbfb4f40a250ab3a1fa315b9d72c65d7
font_01_sfnt_off000114a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114A8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012cbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CBF 11416 bytes
SHA-256: b4ef813b88023871258faa523e0afcb9e7f9099e72185797aa76f85e02817f0a