Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3df47fbc41b8ff…

MALICIOUS

PDF

75.5 KB Created: 2021-10-10 11:10:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 04a1aff31d5287372e08a8ce581bcde7 SHA-1: 7349c39cb4f478cbcd1104c2e59e13a72fdcbfcf SHA-256: 0d3df47fbc41b8ff174bbb5890896f4f64547c4294c02c8205d36ee312508a0d
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://medvor.ru/uplcv?utm_term=importance+of+descriptive+and+inferential+statistics PDF link annotation
    • https://mayxaydungthienlong.com/uploads/files/files/18979004495.pdfIn PDF document text
    • http://ahlhy.com/uploads/file/071124388252.pdfIn PDF document text
    • https://blagoustroystvo24.ru/ckfinder/userfiles/files/bikoxeliwol.pdfIn PDF document text
    • https://okna-kursk.ru/page_edit/_samples/userfiles/files/lowetebezofegul.pdfIn PDF document text
    • http://dzerzhinsk.timebank.ru/sites/default/files/photos/pagefile/bameburajin.pdfIn PDF document text
    • http://goldmustang.com/files/files/83557578264.pdfIn PDF document text
    • http://nigerseedindia.com/uploads/78632555511.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d231f5a6ae---41561539174.pdfIn PDF document text
    • https://aihr-iadh.org/uploads/FCK_files/file/33182706234.pdfIn PDF document text
    • http://ncteonline.com/userfiles/file/fijama.pdfIn PDF document text
    • https://netwindowvn.com/uploads/userfiles/file/84481167219.pdfIn PDF document text
    • http://bacvietexpress.com/upload/userfiles/files/30399583059.pdfIn PDF document text
    • https://topinsolventa.ro/userfiles/file/perujimiketar.pdfIn PDF document text
    • http://abdon.madteam.net/ckfinder/userfiles/files/mevupurafitavamovoparezo.pdfIn PDF document text
    • http://alacarte-husum.de/userfiles/file/3705959018.pdfIn PDF document text
    • http://rasciindia.com/firetech/ckupload/files/2720226758.pdfIn PDF document text
    • http://hoangminhphatkorea.com/webroot/img/files/zenoveduvazizofuxazafiz.pdfIn PDF document text
    • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1615cf6a3a1efc---xazini.pdfIn PDF document text
    • https://escolaalfa.com/userfiles/file/jumofapeguvuserirekusekox.pdfIn PDF document text
    • https://literie-depot.fr/UserFiles/file/mufetogo.pdfIn PDF document text
    • http://geologicatoscana.eu/userfiles/files/vikevitewegepi.pdfIn PDF document text
    • https://responsible-tourism-alliance.com/content_file/files/1314606431.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/ac7r6rul5kth7er3meqg9qfu51/43921766843.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_off0000c1df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1DF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d9f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F1 17860 bytes
SHA-256: d13a18b9cf0c00269e87db43a2e9446746e066deb58e77988f5ddd67d8114ab7
font_02_sfnt_off00010771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10771 10800 bytes
SHA-256: a42ffd0897c715fd416760aa175a8bc2cf23700523585e2b1de67f52c788d571