Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afd54fec7941f89…

MALICIOUS

PDF

84.9 KB Created: 2021-10-07 14:30:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 927ce0fd6a9b48cbda79328e278972c5 SHA-1: ed6ea81b3173aaa0b92179532db19416194962e2 SHA-256: 4afd54fec7941f89af8e3e4306feb0fa71710a8d84f74b8f6a5f9686b9691f81
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://blpest.com/UserFiles/file/14405546088.pdf In PDF document text
    • https://mimpishio2.net/contents/files/petenimikutabeduposop.pdfIn PDF document text
    • http://monarchiaerembolt.hu/tmp/10771500546.pdfIn PDF document text
    • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/4s0sa7cm1suaf663bmqvdv4p36/xalokemijazekuwelul.pdfIn PDF document text
    • https://amoslodge10.org/ckfinder/userfiles/files/73304754637.pdfIn PDF document text
    • https://sanruouvang.net/images/uploaded/file/88468674827.pdfIn PDF document text
    • http://ebd.su/UFD/7623/files/kiraxagarir.pdfIn PDF document text
    • https://asthasupermarket.com/userfiles/file/49467146444.pdfIn PDF document text
    • https://anzhero-sudzhensk.verlauf-ekb.ru/admin/ckfinder/userfiles/files/89408367387.pdfIn PDF document text
    • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612f3fe7d27eb---xipanusorox.pdfIn PDF document text
    • http://kammed.com/userfiles/file/revowegovokiri.pdfIn PDF document text
    • http://kriosispl.com/cote_dor_import/admin/ckfinder/userfiles/files/rasikadokorasumi.pdfIn PDF document text
    • http://intertexmedical.com/userfiles/files/pepuwufugiragorepen.pdfIn PDF document text
    • http://0048.pl/48files/file/27022673028.pdfIn PDF document text
    • http://chinatriage.com/ckfinder/userfiles/files/vedasimufales.pdfIn PDF document text
    • http://minhquoc.vn/ckfinder/userfiles/files/78895006725.pdfIn PDF document text
    • http://piannocreativo.com/js/new/fckeditor/userfiles/file/44937047107.pdfIn PDF document text
    • http://hanabi-la.com/uploads/files/44611462974.pdfIn PDF document text
    • https://saatyapi.com/upload/ckfinder/files/givofebajovoxuf.pdfIn PDF document text
    • http://versobrokers.eu/userfiles/files/83775883774.pdfIn PDF document text
    • http://www.pattyn360.com/upload/forum/files/dadurawaxi.pdfIn PDF document text
    • http://www.focitabor.hu/userfiles/file/mitedibugobofaluno.pdfIn PDF document text
    • http://ahnil.com/userData/board/file/miluji.pdfIn PDF document text
    • http://soeurs-scjboran.fr/soeurs/upload/files/tinilidi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=travelling+home+for+christmas+songPDF 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_off0000e64e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64E 10812 bytes
SHA-256: 281287f3b64e0724f98215f823d3a3ca371da5b150b274ed71444e79f53fdb4c
font_01_sfnt_off0000ff11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF11 17948 bytes
SHA-256: 4d7b42ae5663708aabe595ec65a72d96b6fa36e9aa57c32ac5ac9405afc13031
font_02_sfnt_off00012db7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DB7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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