Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bbdc16ed5420cc…

MALICIOUS

PDF

91.0 KB Created: 2021-07-30 13:41:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: b053856005acca1ef62aab15b82e09b1 SHA-1: ec95f6daf939e282fcf46b5f0ddaa2a6e640d516 SHA-256: 72bbdc16ed5420cc236f2d135377f4acda7fdf74ed8abb8a4198b1777c08d670
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9932

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 http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c9813a55ea6---natofebim.pdf In PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/71659446327.pdfIn PDF document text
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608d2576105cd---judoxududaf.pdfIn PDF document text
    • http://teckim.it/themes/userfiles//files/xobinejupetopef.pdfIn PDF document text
    • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/98a970a0239650b595e806bd851ea2a4/kadutarabevidebubikegik.pdfIn PDF document text
    • http://playfromhome.org/clients/4/49/49939bf6a151252ba1adfe53d1befa29/File/29545323009.pdfIn PDF document text
    • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/fb70eddede4c574b64611f21dfec7856/kunujilefubovoxibupepemik.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1608ddba271f41---niligepojutigepinijitotu.pdfIn PDF document text
    • https://www.domaine-de-la-ferme.fr/ckfinder/userfiles/files/dujovajuv.pdfIn PDF document text
    • http://gbagencement.fr/uploads/file/mixabalevafawevoka.pdfIn PDF document text
    • http://topas.lt/userfiles/file/wabukujadurubunuwof.pdfIn PDF document text
    • http://andrelandberg.com/userfiles/file/6135209548.pdfIn PDF document text
    • http://md-servicios.com/userfiles/file/lajukadomar.pdfIn PDF document text
    • https://otelnamore.com/wp-content/plugins/super-forms/uploads/php/files/3c0de24ca9b4113f22ca169f835fb6d6/99664646515.pdfIn PDF document text
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e041b097e78---93946095328.pdfIn PDF document text
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd7d786584---kebopabufez.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/6e6658a2c3d4df3cc3f7317986ff52c6/41579098113.pdfIn PDF document text
    • http://westmoorclassof1965.com/clients/5/52/52ec68f2b927accf75267cb07bfcc891/File/bojexixefibodano.pdfIn PDF document text
    • http://ptaki.info/imgekoprojekty/files/49904595600.pdfIn PDF document text
    • http://freetourscadiz.com//ckfinder/userfiles/files/damax.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/c4a91a77faefb806106e7631fc70d028/56537223305.pdfIn PDF document text
    • http://www.bandungmesin.com/file/31958733013.pdfIn PDF document text
    • http://agrobud.net/uploaded/file/pubarovidoxipofu.pdfIn PDF document text
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/d88beab3ef75886056c090f7a09923ec/42971828950.pdfIn PDF document text
    • https://al-farh-iq.com/upload/userfiles/file/tubemakokimurumudoge.pdfIn PDF document text
    • https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/ie1flagv03g42b23j7j75cmlj4/45617757083.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=bahubali+2+hd+tamil+movies+5.1+free+downloadPDF 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_off0000fdaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000115c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115C1 11436 bytes
SHA-256: e562b897f0ce8778d36b1dc582e3284d7c8e062972db38cc8a85d830bfcdb0e2
font_02_sfnt_off000130be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130BE 17108 bytes
SHA-256: 9ccadf86cf0ea2df07d1096910eb43468c438974c06af2a28d5cf64c402ab80d