Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc7ea282966ea23…

MALICIOUS

PDF

87.1 KB Created: 2021-07-05 16:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: acea4df44c1a2ac9d02a5bc2c49f4322 SHA-1: 2ddbc6a2cb8ac4596489cd53344e78804b69f9a1 SHA-256: 1dc7ea282966ea2315fdc06d13379fb816ead1f033ffd6dff570acc55e9f2c1a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2acb06de11---66771881571.pdf In PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/c0f448a59f689682c830ab6e56011f2f/72332912189.pdfIn PDF document text
    • http://aqbnb.com/uploadfile/file/bolefoku.pdfIn PDF document text
    • http://surrattsville69.com/clients/8/81/8122276c22396d7fa0996010cc369f50/File/pagetakefamutatojode.pdfIn PDF document text
    • http://alfavit.tv/userfiles/file/lelet.pdfIn PDF document text
    • https://fobh.net/userfiles/files/gakuvunaluzizozekobozobef.pdfIn PDF document text
    • https://raljob.com/userfiles/file/lutevipijasasi.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe1d9e1de6---kegafebudorironavoxofob.pdfIn PDF document text
    • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a70a7e6a27---33011463875.pdfIn PDF document text
    • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/6364706e25cf03a5694938ffeb26fc3b/nivoxumadug.pdfIn PDF document text
    • http://cesishotel.lv/res/wysiwyg/file/gaduraw.pdfIn PDF document text
    • https://baigiangtoanhoc.com/upload/files/64712831859.pdfIn PDF document text
    • https://mimpiindah2.com/contents//files/2324462387.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/2ojrnha7a88dlvqsqqoc3456a5/33987988037.pdfIn PDF document text
    • http://www.naraihillgolf.com/admin/userfiles/file/rixawi.pdfIn PDF document text
    • https://kalitelivideoizle.com/resimler/files/98987383920.pdfIn PDF document text
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606f17117bfdc---liwokekokigatuxa.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/76b32207b583247d636932cda1e35e57/gokes.pdfIn PDF document text
    • https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/babd36962fd74591287ff731622b7a0b/24428248204.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b788baae357---50473877401.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/c6054b99d5e69ea245b70d482249ed6b/bewonojuzizanagifones.pdfIn PDF document text
    • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/rbgg0pnb7224rvh2qh795qbnt3/57825481090.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/76296854578.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/e529aa87672678f86972f63852378d28/lesagikipivuzu.pdfIn PDF document text
    • http://mospolytech.ru/storage//files/zowupawa.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/4cbefbb167f17d507a37ae5867bca060/valulusogurajawafopenafu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=working+for+apex+focus+groupPDF 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_off0000f280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF280 10796 bytes
SHA-256: 149bfb0aa1702509c8e1d92ede457c2b7a3406681f2e628550c018d335f80e60
font_01_sfnt_off00010b91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B91 16784 bytes
SHA-256: 89f8aa217711427316bbe24b3564a8d262b46f7ece5ae61d89021f72da2050bb
font_02_sfnt_off000136c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136C1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1