Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8e8988b4a82d62…

MALICIOUS

PDF

89.7 KB Created: 2021-10-08 08:54:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 1b08ecd951171e7b0e812a5db5b11135 SHA-1: 80e461f9f7d739a899b6f6cc400e4850b3e7679c SHA-256: 5d8e8988b4a82d6248174e8fb2c7218d524027910f9ad280117e6eb07be5d8c9
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://haciendaloscipreses.cl/upload/file/15869337720.pdf In PDF document text
    • http://vitajeans.com/ckfinder/userfiles/files/gidadi.pdfIn PDF document text
    • http://gabinetortodontyczny.eu/userfiles/file/65054945171.pdfIn PDF document text
    • http://kaies.cn/upfiles/file/72256494988.pdfIn PDF document text
    • http://sun-eko.eu/files/file/zulaz.pdfIn PDF document text
    • https://kopari.hu/files/file/lifejujuritupiwu.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614ea9c311994---lagiwezisij.pdfIn PDF document text
    • http://alhegazgroup.com/userfiles/file/18437716692.pdfIn PDF document text
    • https://medicentrumnz.eu/medicentrum/files/file/novakamigaranuraxino.pdfIn PDF document text
    • https://kaptenhoki.com/contents/files/fibasavew.pdfIn PDF document text
    • http://generoussecurity.com/uploads/sipefunepozose.pdfIn PDF document text
    • http://glamour-nsk.ru/ckfinder/userfiles/files/49138420399.pdfIn PDF document text
    • http://zh-huaxun.com/uploadfiles/files/32770327819.pdfIn PDF document text
    • http://baovephuongtroi.com/vietkiendo/upload/file/49017108451.pdfIn PDF document text
    • http://contelex.it/userfiles/files/vekuxuxatodusesu.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1615285d08dd15---92849905210.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/3d43464aa27b3ce93938a513fde45316/vepuwelaja.pdfIn PDF document text
    • http://evpltravel.com/xv_image/file/pufikaxeja.pdfIn PDF document text
    • https://imotrading.com/images/userfiles/61593217505.pdfIn PDF document text
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/91def4f0a89ff04a955106c1df1281ca/83292658751.pdfIn PDF document text
    • https://bacsionline.net/userfiles/file/78928674297.pdfIn PDF document text
    • http://viral-list-monster.com/ckfinder/userfiles/publics/files/39041490093.pdfIn PDF document text
    • http://wang023spa.com/userfiles/202109file/2021091908465670554.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=famous+quotes+from+huckleberry+finnPDF link annotation
    • 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_off0000f336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF336 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B48 20044 bytes
SHA-256: 314dc37fd8236e4fed343675964b4eafa2017d33787635d46acf9742fae996cb
font_02_sfnt_off00013f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F0C 11168 bytes
SHA-256: 8898bb46c4a49679080f742d499ccbb3a98df0387e24d2f0dc16a8b984bd28e3

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