Malicious PDF — malware analysis report

Static analysis result for SHA-256 191e7d7948be4bf8…

MALICIOUS

PDF

74.2 KB Created: 2021-10-06 21:56:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 8d22922004ffde7b252f847ba18f5299 SHA-1: 948a4bb52e880a32e8372c10148f3249ee5fe196 SHA-256: 191e7d7948be4bf8e8886838b13746d59dbd539435c88f1d74b96f42af84d4e7
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://philabc.ru/uplcv?utm_term=sent+forth+by+god%27s+blessing PDF link annotation
    • http://conservativista.com/js/ckfinder/userfiles/files/nezafasotovuvus.pdfIn PDF document text
    • http://stilistspb.online/public/files/uploads/files/nelosefipulalarizur.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161588fdfd0a29---99591226141.pdfIn PDF document text
    • http://ikcem.org/userfiles/file///lorojojadako.pdfIn PDF document text
    • https://istanajp2.com/contents/files/16681888208.pdfIn PDF document text
    • http://pekingtogo.com/uploads/files/mopuputoposogavufowibi.pdfIn PDF document text
    • https://cyberbirddog.com/userfiles/files/sibotajato.pdfIn PDF document text
    • https://planningpvedh.nl/ckfinder/userfiles/files/jegivekazapeferexidu.pdfIn PDF document text
    • http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/gofebiv.pdfIn PDF document text
    • https://istanbulbalbir.com/upload/ckfinder/files/91082760169.pdfIn PDF document text
    • https://almondzwealth.com/administrator/imagetemp/file/41320893523.pdfIn PDF document text
    • https://www.vasutaszeneiskola.hu/ckfinder/userfiles/files/1810626350.pdfIn PDF document text
    • https://jiu-hang.com/upfiles/editor/files/30978504471.pdfIn PDF document text
    • http://imobilestore.de/userfiles/file/bofiwufafidedideseditu.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/311eqdgd2b5r1lect3nf0cbj0k/kepulisoxorowila.pdfIn PDF document text
    • http://antansconstructions.com/ckfinder/userfiles/files/nakubun.pdfIn PDF document text
    • http://viacaosaopedro.com/www/js/ckfinder/userfiles/files/xunisujanenopabizen.pdfIn PDF document text
    • http://aircond.md/upload_fck/file/61937770316.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4ef71adb1---30422279978.pdfIn PDF document text
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/0fab29432ef34e7f223104499d104ea6/47364532079.pdfIn PDF document text
    • https://namdolove.com/FileData/ckfinder/files/20211003_8CAC31D22AB62CE9.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user//file/_0197943001630757785.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_off0000bae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAE2 18420 bytes
SHA-256: c8189d694b9321410fccb22b51c38a859bdd925d796cf76afba185a55337209f
font_01_sfnt_off0000ea9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9F 10836 bytes
SHA-256: eff21e0fe48a614906aaf04f4d4d9c7a86db57d6f9195018220cd798eebe9cef
font_02_sfnt_off0001035e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1035E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1