Malicious PDF — malware analysis report

Static analysis result for SHA-256 258078fe962f1565…

MALICIOUS

PDF

81.9 KB Created: 2022-04-07 04:13:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: a7921758a593e1460b8da7f57e8f8cc7 SHA-1: dc13fb44b02adde0d1adf551a58ab3b0b8ddf1a5 SHA-256: 258078fe962f1565f58491a6afa8eee4b1984fdbe4edd1c41f4ccc3a97087114
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ipayon.com/root/FCKeditor/file/xubizupam.pdf In PDF document text
    • https://rimedugomo.weebly.com/uploads/1/3/0/7/130740195/1754718.pdfIn PDF document text
    • https://dowadumusisek.weebly.com/uploads/1/3/4/5/134521262/lutogapiribokijuloga.pdfIn PDF document text
    • http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/jodobagomojemezigak.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/732c65b39e1572c6b636bb96f5d57f90/99596122228.pdfIn PDF document text
    • http://www.museopizarra.com/ckfinder/userfiles/files/gefimox.pdfIn PDF document text
    • https://mesitumavitolo.weebly.com/uploads/1/3/4/8/134866133/3359435.pdfIn PDF document text
    • http://pharmorgsyn.com/upload/files/xibulusapipepokagarekoket.pdfIn PDF document text
    • https://tigaguxekebopu.weebly.com/uploads/1/3/4/5/134592721/lepememir.pdfIn PDF document text
    • https://xorukulimuz.weebly.com/uploads/1/3/4/7/134728044/d36e18dc4b122.pdfIn PDF document text
    • https://xorodipilubila.weebly.com/uploads/1/3/5/3/135311864/bojug.pdfIn PDF document text
    • https://rujijixagav.weebly.com/uploads/1/3/1/3/131383475/gafipugetijomev.pdfIn PDF document text
    • http://studiofapas.it/userfiles/files/45299440.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622e1fef6a63f---zazeju.pdfIn PDF document text
    • http://qcfloor.com/userfiles/file/kolafezewipat.pdfIn PDF document text
    • http://www.salda.se/saldus/kcfinder/upload/files/86911416908.pdfIn PDF document text
    • https://retixuzekuzexaw.weebly.com/uploads/1/3/4/3/134375726/zogunujajevapu.pdfIn PDF document text
    • https://vipapesad.weebly.com/uploads/1/3/4/3/134369303/deneniku.pdfIn PDF document text
    • https://istanbulbalbir.com/upload/ckfinder/files/garobivimovagadasow.pdfIn PDF document text
    • https://zujetopefij.weebly.com/uploads/1/3/4/7/134766602/texerawawu-sujulajen-karuzum.pdfIn PDF document text
    • http://vietcem.vn/public/default/ckeditor/files/zufozifeteno.pdfIn PDF document text
    • https://fecuq.co.za/YmrXLWy8?keyword=blades%20in%20the%20dark%20pdf%20portuguesPDF link annotation
    • https://lemitixodage.weebly.com/uploads/1/3/4/8/134868200/ccbb5333128.pdfIn PDF document text
    • 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_off0000bfd2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bfd2.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bfd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD2 11020 bytes
SHA-256: db101b61087e0f1f8e94fc2900d5eccef2d901838f8680849587146a801b778d
font_01_sfnt_off0000d922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD922 16340 bytes
SHA-256: 88a5f3ad9079b2340172ecd64f1cd79ba1ad1753eb2b73e58de10c5a7be67d15
font_02_sfnt_off0000ef15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF15 19024 bytes
SHA-256: ef4bf63d60bae0fe5a0471dd0907eacb4367436ce8a04df2cb87f15e71ae6da8
font_03_sfnt_off00011e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E45 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1