Malicious PDF — malware analysis report

Static analysis result for SHA-256 f999ab1c1f9ecd72…

MALICIOUS

PDF

78.3 KB Created: 2022-04-07 08:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 09dcf25d9494debf252c7fe32fc6db38 SHA-1: eb009b4b5ba07567f4a24063400d08dd8c911bdb SHA-256: f999ab1c1f9ecd72956181f259d9510023722bb2448649a668f60c02d8436d87
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://yoyep.co.za/YmrXLWy8?keyword=pode%20n%C3%A3o%20ser%20o%20que%20parece PDF link annotation
    • http://silver.jo/ckfinder/blanc/files/33422431432.pdfIn PDF document text
    • http://reklamnizbozi.cz/data/upload/files/sipixopolezewelokozu.pdfIn PDF document text
    • https://solargreenstyle.com/files/65855602854.pdfIn PDF document text
    • https://kudamatsu.org/userfiles/file/98406391696.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/ie33m8ibqu3a5tfavge2u6e0gq/30535579157.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621ea1be683d8---20010207429.pdfIn PDF document text
    • https://tolivamudolav.weebly.com/uploads/1/3/5/3/135389145/jixawimudunuzi-babumova-sowejafojomi.pdfIn PDF document text
    • http://turagent007.ru/userfiles/file/xusuvazoki.pdfIn PDF document text
    • https://wtmasonry.com/ckfinder/userfiles/files/99977973959.pdfIn PDF document text
    • http://www.pacautomarketing.com/file/96565115900.pdfIn PDF document text
    • http://emotionpicturesfestival.gr/userfiles/file/rajizowurotudogosamopep.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/162147a971c193---kiwafekeliragodagawuwar.pdfIn PDF document text
    • https://lekofubazag.weebly.com/uploads/1/3/1/8/131872104/kijozapozu_babuwosotov.pdfIn PDF document text
    • https://tusubolamofe.weebly.com/uploads/1/3/5/3/135322079/fifikiredali.pdfIn PDF document text
    • https://fasadosuz.weebly.com/uploads/1/3/4/0/134012998/80b01.pdfIn PDF document text
    • http://clinicaveterinariagoitese.it/userfiles/files/44324420906.pdfIn PDF document text
    • https://jemodenot.weebly.com/uploads/1/3/4/5/134528334/956a4.pdfIn PDF document text
    • http://thebeautyofdesign.nl/ckfinder/userfiles/files/65687593239.pdfIn PDF document text
    • https://drproperty.in/userfiles/file/42946544038.pdfIn PDF document text
    • https://gabinetpro.pl/kosmetyczka/krakow/files/xubijibonaxeguzowulasano.pdfIn PDF document text
    • http://www.veedik.net/assets/admin/kcfinder/upload/files/50145914305.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/16223997eb929d---76245143130.pdfIn PDF document text
    • https://qatarsecurityservices.com/public_html/userfiles/file/23577724997.pdfIn PDF document text
    • http://architects-desk.com/uploadsfile/17055541629.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_off0000c596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC596 20432 bytes
SHA-256: 36aeacc606be85adfd40ca8231d67eb2dbe9b561c3e4ecf82eae1d9c5e9a15d6
font_01_sfnt_off0000f871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF871 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11088 10784 bytes
SHA-256: e690aab38e39e807a5acde398ec492de420ec9536e27182ed3360fbbe21438b8