Malicious PDF — malware analysis report

Static analysis result for SHA-256 191920f6a7ec8dd2…

MALICIOUS

PDF

70.3 KB Created: 2021-10-01 16:20:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 90771ae31ec295d384da5bcd719f3784 SHA-1: 388033889b6fe3e47a83f0ce7fa2b2414286b79d SHA-256: 191920f6a7ec8dd29899c91ce3e4fb2a3530b43a1a3b2e26d61d722755dcb4a9
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://huntic.ru/uplcv?utm_term=smoke+and+glass+icon+pack PDF link annotation
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/g6c7ihttblpbf9le60pfqemmlq/buwenizujasebukira.pdfIn PDF document text
    • http://hugslock.com/app/webroot/img/files/fodokawadozugilibunetojo.pdfIn PDF document text
    • http://mijn-nederland.nl/userfiles/file/rozobamaxewobagezofaxi.pdfIn PDF document text
    • http://citranco.com/users/files/xuribaraxeb.pdfIn PDF document text
    • http://vitali-schulz-eiskunstlaufen.de/userfiles/files/72553755378.pdfIn PDF document text
    • http://tindangnhadat.vn/upload/files/605775926.pdfIn PDF document text
    • https://www.nbc.com.vn/ckfinder/userfiles/files/dakasiputifugekafuge.pdfIn PDF document text
    • http://aucoindeshalles.fr/menu/file/83684956051.pdfIn PDF document text
    • http://sowa-architekci.pl/userfiles/files/92747214954.pdfIn PDF document text
    • https://santa.sg/images/users/00000000/files/66578636408.pdfIn PDF document text
    • http://leebyenghun.com/new/upload/board/files/28098608134.pdfIn PDF document text
    • https://bonvoyageindia.in/ckfinder/userfiles/files/meluwijeze.pdfIn PDF document text
    • http://the100voicesofgospel.de/fichiers/newsletter/file/vesodifugopubepilamipep.pdfIn PDF document text
    • https://sakura-bashi.com/uploads/files/202109300744382965.pdfIn PDF document text
    • https://mallncart.com/userfiles/files/3714384018.pdfIn PDF document text
    • http://yanartekstil.com/firma/files/ropunuzatobexirigote.pdfIn PDF document text
    • http://pk.mo/userfiles/file/fujumomuwegezolo.pdfIn PDF document text
    • http://travellerisland.com/files/zopikojogixezasuluzozimos.pdfIn PDF document text
    • http://3gr-group.com/ci/userfiles/files/dopagovibemonumagi.pdfIn PDF document text
    • https://whitesal.com/data/images/file/6977_20211001181441.pdfIn PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/t2mdu3np6ndfrcvpftqmsch07k/10374549779.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e75db7a143---33962299354.pdfIn PDF document text
    • https://dutchfansitenetwork.nl/ckfinder/userfiles/files/93192971876.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_off0000b0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0C9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c8db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8DB 16348 bytes
SHA-256: a871f189d77056540128b4398472255030bbfc91b220550f0af1f5632bccf2d6
font_02_sfnt_off0000f2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DA 10828 bytes
SHA-256: 328e9f595e19046f6aeffb7d7d9d33c06bbcc9c9d48e3b0341620cd89fcfce18