Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9928cb96bbaa5ef…

MALICIOUS

PDF

86.4 KB Created: 2021-08-07 17:42:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 6caf23ee4643b90295d2abc156928608 SHA-1: 5bfa7cd05e20d52518f1145529a390ec837d2055 SHA-256: f9928cb96bbaa5efccf38a7957820d8a7ab5ff9a65d6d096035a1526a6663808
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9848

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 http://allprintusa.com/admin/images/file/nakimavokanule.pdf In PDF document text
    • http://www.doctor-carpet.com/wp-content/plugins/super-forms/uploads/php/files/ibdra511sv8unhicahajunsrl0/pakoredonotejiledarabivin.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609173d63724c---67737611050.pdfIn PDF document text
    • https://lanegarrett.net/userfiles/file/69291546592.pdfIn PDF document text
    • http://insuralead.com/userfiles/file/xegig.pdfIn PDF document text
    • http://global-leasing-management.com/uf/file/54126299743.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b5b4cd42204---joxodizumi.pdfIn PDF document text
    • http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7b3a8637c---sasaguwebibizolo.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16090eaccf1cad---22304106339.pdfIn PDF document text
    • https://weilaimachinery.com/userfiles/files/futezofiwatasozur.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b74f2aaa1ce---49187725857.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b559ed75441---29052863282.pdfIn PDF document text
    • https://hw-power.com/uploads/ckfiles/files/60e903a4c3d6e.pdfIn PDF document text
    • https://mayxaydungthienlong.com/uploads/files/files/41549354453.pdfIn PDF document text
    • http://plafondchauffant.fr//img/user/file/45723779967.pdfIn PDF document text
    • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/ptpk0d75fjfedsppiub4qf58e0/xosajorom.pdfIn PDF document text
    • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/hu2korat8s18f9aip5u3rrf8l0/gowiwupejox.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b57670eee24---72683078451.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/2168118569085e7e16bfce7dd48b9098/xuzimokuzotipe.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16086c456c4c63---44189848904.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/758738b73e9df7a58bd71245a450d451/16943364003.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/3d4b780758b41d50451648716b6d84f9/bifupasumesidaku.pdfIn PDF document text
    • http://indemo.pl/Image/files/tirevigumegipenaguxegeze.pdfIn PDF document text
    • http://artin-intranet.com/ckupload/files/43496276525.pdfIn PDF document text
    • http://eastcoastbiker.de/sites/default/files/file/nunigedojakegesadiruji.pdfIn PDF document text
    • http://cungcapluonech.com/upload/files/napebudubo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=workout+record+template+excelPDF 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_off0000edd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD8 10600 bytes
SHA-256: bee0b4e005af9bae001db719e26fc311779bbb94243ff2e2bdd23c88936ee450
font_01_sfnt_off00010626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10626 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011e38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E38 17488 bytes
SHA-256: 29687c5ab09081fb8db47b1a6d99eac896a5e34516d37e069ebda0cc918bef61