Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8e2684e0f99fcb…

MALICIOUS

PDF

83.9 KB Created: 2021-11-17 15:04:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: b7ef0b21b9566a62c2020563e87598ac SHA-1: 3ae575964a4e0d0afb897c5d9d3f854fa6325009 SHA-256: 5d8e2684e0f99fcb360beccf62fd2e16382786b560b9c2c1018e5b62981e7789
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1616b4cc1e038f---sodolifuziruwi.pdf In PDF document text
    • https://mimpishio1bet.net/contents/files/79545667288.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/79782251548.pdfIn PDF document text
    • http://atenngo.com/admin/sites/site/documents/womulesozirawixepelod.pdfIn PDF document text
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16171a232a8911---tizovivafenat.pdfIn PDF document text
    • https://westhigienia.hu/editor_up/21355330362.pdfIn PDF document text
    • http://igs.compcierge-asia.com/ckfinder/userfiles/files/pilonunipoparuwumu.pdfIn PDF document text
    • http://hostingureitings.lv/uploads/userfiles/files/retavipumifo.pdfIn PDF document text
    • https://www.colegiumaniucarei.ro/ckfinder/userfiles/files/19217103380.pdfIn PDF document text
    • http://uat2.hkha.com.hk/ckfinder/userfiles/files/22626287933.pdfIn PDF document text
    • https://kcharp.com/ckfinder/userfiles/files/xufazixojexufujozufi.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1618010f79eadf---wawutubanomurira.pdfIn PDF document text
    • http://teleinwestor.com/userfiles/file/82775985974.pdfIn PDF document text
    • http://kanomax-nsk.ru/images/dowosugexaraseta.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16184b4de73c06---kozupilakadu.pdfIn PDF document text
    • http://rockhouseschool.com/rockhouse/uploads/files/sulenomobixamemi.pdfIn PDF document text
    • http://dongamold.com/fckeditor/upload_files/file/68580024129.pdfIn PDF document text
    • https://campfun.myhost888.com/upload/ckeditor/files/67726992426.pdfIn PDF document text
    • https://wic-net.com/userfiles/file/30910632353.pdfIn PDF document text
    • https://pastelbuilders.com/userfiles/file/povisiroz.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/r4jn3donck4ebh1s0btn0bvr52/zepusugutibov.pdfIn PDF document text
    • https://binarbaid.com/public_html/userfiles/file/80165732859.pdfIn PDF document text
    • http://englandmatchshirts.com/assets/file/weriwim.pdfIn PDF document text
    • http://anhuicrew.com/upload_fck/file/2021-11-5/20211105032228101996.pdfIn PDF document text
    • http://soeurs-scjboran.fr/soeurs/upload/files/36200651793.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/tgwjJlsMqHc/uplcv?utm_term=by+the+end+of+the+weekPDF 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_off0000e6f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F1 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_01_sfnt_off0000fe17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE17 10228 bytes
SHA-256: eb6c48ae2a37052bc7f91ecb0fe2e9b01676d3a65e25b9a4b0ca9e13895a78f5
font_02_sfnt_off00011515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11515 17216 bytes
SHA-256: 4fdf8cb7a1316915757b8cc448cc5602df62ee2bfcbc4ea3429066c72eb16ae0