Malicious PDF — malware analysis report

Static analysis result for SHA-256 191425d869389899…

MALICIOUS

PDF

84.4 KB Created: 2021-10-20 12:36:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 9dea1dd80a928cc96d8913f00d98f56e SHA-1: 19d9250368530627382cd8b2b45a46f2b004f86d SHA-256: 191425d8693898993b15f80a4c6b28b39ae56e2fa66c3e0882f826661c4f0e23
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9860

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://nomylo.ru/uplcv?utm_term=teeth+made+out+of PDF link annotation
    • https://iwistw.com/upload/files/38526377031.pdfIn PDF document text
    • http://daiichilogistics.com/uploads/news_file/lekisofemew.pdfIn PDF document text
    • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/2kiojlbhfj95cmj1c7t3m6pihn/42026845676.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16141da2c59d4d---54260818123.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614203e11fe19---tilumabupuridoxeviwav.pdfIn PDF document text
    • https://www.fyna.com.au/application/third_party/ckfinder/userfiles/files/vibiwowovunagegulobur.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/63338694323.pdfIn PDF document text
    • https://www.sibirprokat.ru/ckfinder/userfiles/files/33819695341.pdfIn PDF document text
    • http://goodfortune.hk/UpLoadFile/file///90887294048.pdfIn PDF document text
    • http://ageddfjtj.pretty-match.com/upload/files/kiwadekoga.pdfIn PDF document text
    • http://cabinet-blin.fr/ressource/site-image/files/wejijufefaxugezoxejizubit.pdfIn PDF document text
    • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/161531cde9f5d2---82384500321.pdfIn PDF document text
    • http://texmet.pl/userimages/file/42842750879.pdfIn PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16162fe72e21c7---rakufeg.pdfIn PDF document text
    • http://lnyuanzong.com/uploads/files/20210923175446.pdfIn PDF document text
    • http://pc75.net/upfiles/file/1633762509.pdfIn PDF document text
    • https://pmfegypt.com/userfiles/files/49906941693.pdfIn PDF document text
    • https://organicfertilizerproduction.com/d/files/90554924789.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/161629d511a4e2---30038793134.pdfIn PDF document text
    • https://optimumquestsolutions.com/ckfinder/userfiles/files/xakusosevatudosewujixu.pdfIn PDF document text
    • https://uat-tunisia.com/userfiles/file/jukegabotarelujalav.pdfIn PDF document text
    • http://xn--12cbg9dihj7egda2g6a7dceb1d2cp4nvgf4f.com/datas/files/jobixodemixowaveba.pdfIn PDF document text
    • http://adice-area.com/pictures/files/90030199492.pdfIn PDF document text
    • https://506hlapeta.com/files/file/lesim.pdfIn PDF document text
    • http://www.klccpa.com/userfiles/file/In PDF document text
    • http://ultraljud.nu/bild/files/83931069095.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_off0000e619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE619 10172 bytes
SHA-256: e3a3124fd8f376e091ceb6ab9a1f5238ff409872498defcfdf89be7cb5de03d7
font_01_sfnt_off0000fce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000114f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114F5 18340 bytes
SHA-256: e3c654f5f2472a69054df3b5f36af34f544b8f64588a2f872e13c907a713ef87