Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de0990926e3d4ad…

MALICIOUS

PDF

74.4 KB Created: 2021-11-11 22:16:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 50e585ecb3b79b7220b8b3839b761670 SHA-1: db8520afe8d5b687ffb1d081dbb6b9cc45c27995 SHA-256: 4de0990926e3d4ad89e1202fa3ed25b1a59461f8ad51a339d6c1e4d7b5ba4f06
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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 http://erfanekeshmiri.ir/userfiles/file/76518090366.pdf In PDF document text
    • http://ersenergy.com/UserFiles/file/xenewa.pdfIn PDF document text
    • http://avtosfera28.ru/userfiles/file/zitizubegozujav.pdfIn PDF document text
    • http://teen.plovdivweek.com/js/ckfinder/userfiles/files/tivamisutotari.pdfIn PDF document text
    • https://crbz.ru/userfiles/file/37001520954.pdfIn PDF document text
    • http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/jazunerowabomiraganupimes.pdfIn PDF document text
    • https://certifiedcollisionrepair.com/home/cert/public_html/ckfinder/userfiles/files/74082993586.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/b8d5e3f6c40ca98a15b8fdee8ba45b07/25583131738.pdfIn PDF document text
    • http://vxclouds.com/userfiles/file/47118983273.pdfIn PDF document text
    • https://hopclickhospitality.com/scgtest/team-explore/uploads/files/7849557027.pdfIn PDF document text
    • https://nezrenweb.com/calisma2/files/uploads/78340527705.pdfIn PDF document text
    • http://gianniarnaudo.com/userfiles/files/lenegazulavedojadij.pdfIn PDF document text
    • http://agriturismolionsfarm.it/userfiles/files/mezatobasogusafi.pdfIn PDF document text
    • http://telektrans.hu/editor_up/xikujufamimetovofi.pdfIn PDF document text
    • https://tonmathunglan.vn/upload/files/1351687899.pdfIn PDF document text
    • http://market-oborudovanie.ru/upload/file/lukeduluzekebawojum.pdfIn PDF document text
    • http://yachtales.net/admin/userfiles/files/litakulisefelovejujexu.pdfIn PDF document text
    • http://mcutech.net/upload/2021/11/file/1636110180726998543.pdfIn PDF document text
    • http://taxilitomerice.cz/ckfinder/userfiles/files/xosipivopef.pdfIn PDF document text
    • http://chongqinghaohong.com/upload/files/gorisap.pdfIn PDF document text
    • http://kahasat.cz/data/file/84896721871.pdfIn PDF document text
    • http://meadescafe.com/userfiles/file/gapikede.pdfIn PDF document text
    • http://thy-environment.com/userfiles/files/bifapuruvidovapalizu.pdfIn PDF document text
    • http://ventensis.lt/public/ckfinder/userfiles/files/93038494026.pdfIn PDF document text
    • http://seksdagen.nl/userfiles/file/37351467229.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/cmwvf4RlXg4/uplcv?utm_term=zip+to+mp3PDF 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 extracted file (font_00_sfnt_off0000beb4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000beb4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000beb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEB4 18976 bytes
SHA-256: 076167c3a5d0274e773cf751b657bcb64fe8a389d6e84cf7f22f99df03d82faf
font_01_sfnt_off0000efb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB7 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_02_sfnt_off000106dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106DC 9836 bytes
SHA-256: 24f5f9f8e71aa1549470ee5b658ca43ec5069f390ce12d029168541d7d38dd82