Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e331ba26904c49f…

MALICIOUS

PDF

83.3 KB Created: 2021-11-16 14:32:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 2d5fa82dac8ce73ee62090b18d49cf42 SHA-1: d062eb50922af9157b0823890d8de1c1387f5538 SHA-256: 4e331ba26904c49f97d9fc55b4d8ac69b9e39401190ca8a05a3730e09fb216a5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 5

  • 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.
  • 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://indagosrl.it/userfiles/files/berul.pdf In PDF document text
    • http://wdnederland.nl/file/sututegotixave.pdfIn PDF document text
    • http://elvirajogsi.hu/ckfinder/userfiles/files/zowetominogi.pdfIn PDF document text
    • http://massimomoroni.it/userfiles/files/kojige.pdfIn PDF document text
    • https://feldmann.pl/userfiles/file/tagudumo.pdfIn PDF document text
    • http://caytrong.vn/Images_upload/files/51473930772.pdfIn PDF document text
    • https://gopherscopes.com/userfiles/file/jijilasarowufalup.pdfIn PDF document text
    • https://beta.nhatthiengroup.com/files/uploaded/files/famepasafegene.pdfIn PDF document text
    • http://mutitar.com/user_img/files/mawowiwinekuf.pdfIn PDF document text
    • http://feach.ie/images/uploads/file/557424953.pdfIn PDF document text
    • https://marathonblainville.com/userfiles/files/ziturumisel.pdfIn PDF document text
    • http://nakloboucku.cz/uploaded/file/kotesanunegolu.pdfIn PDF document text
    • http://imoroz.by/upload/file/bevaxetarilin.pdfIn PDF document text
    • https://ddtoyz.com/ckfinder/userfiles/files/85427216093.pdfIn PDF document text
    • http://naim.naparts.com/images/fck/file/pefureguvinabeven.pdfIn PDF document text
    • http://dogomanhnghia.com/uploads/files/fufar.pdfIn PDF document text
    • http://alianzablue.com/aym_image/files/wanaf.pdfIn PDF document text
    • http://artemon.nl/userfiles/file/tezajipamive.pdfIn PDF document text
    • http://myjobcareer.net/userfiles/file/2021110709160173499.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/036ae33cd645bde4b10d51b941176325/40956427157.pdfIn PDF document text
    • https://sapsda.com/SapmaUserfiles/file/gawuzimuloridepibevej.pdfIn PDF document text
    • https://bunianco.com/other_files/File/6544966723.pdfIn PDF document text
    • http://2013.letnifestiwal.pl/ckfinder/userfiles/files/nometitojasisosefogup.pdfIn PDF document text
    • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/161372bdf568ac---jalitel.pdfIn PDF document text
    • https://foodexgida.com/uploads/files/visedogodojob.pdfIn PDF document text
    • https://secolink.sk/userfiles/file/4090653618.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/7xhmvLXWVJc/uplcv?utm_term=difficulty+while+swallowingPDF 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_off0000e410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE410 10816 bytes
SHA-256: ff2f0b36fd60cb5e8f12d2aab9824a10bec8588113acac7d0722d9debcdfbd1c
font_01_sfnt_off0000fd1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD1B 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_02_sfnt_off0001143c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1143C 16528 bytes
SHA-256: 26af51e722530ac51b8ab7e19dc4272cc4168cd9cacea94b0db1b70b3881b077

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