Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b2db702d969f2f…

MALICIOUS

PDF

85.9 KB Created: 2022-03-31 18:37:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 5e1beac267c15338477eff3e5eb63396 SHA-1: 0657bc9b18fb47f9232df5011c42bb7326e77916 SHA-256: a8b2db702d969f2f187987ced8d935fc4e836144465d2467d2689d3aa1808927
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 https://vaxurubezinijor.weebly.com/uploads/1/3/4/6/134690270/gelofaduge.pdf In PDF document text
    • http://solentpodiatry.com/jackvl940/web/content/images_uploaded/file/xeliloniwotuxumon.pdfIn PDF document text
    • http://ktimavoyatzi.gr/images/files/files/xopokudukivosuperes.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622877d2cf932---52290707697.pdfIn PDF document text
    • https://cbdc.co/uploads/ckfinder/userfiles/files/8869401607.pdfIn PDF document text
    • https://vojutodebol.weebly.com/uploads/1/3/4/0/134096580/mabunoledurugajox.pdfIn PDF document text
    • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/defujisavozopuvit.pdfIn PDF document text
    • https://xizuxikeg.weebly.com/uploads/1/3/0/7/130740292/9d01399972f1.pdfIn PDF document text
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/5n63ruen2spogtmv7dhlljqalg/pufibolukitil.pdfIn PDF document text
    • https://pepodefaposuv.weebly.com/uploads/1/3/5/9/135992330/kadamufumu-jemetulido.pdfIn PDF document text
    • http://alptw.com/images/files/18681642660.pdfIn PDF document text
    • https://xifilovevovo.weebly.com/uploads/1/3/5/3/135346251/nidifelekoja.pdfIn PDF document text
    • http://boschvietnam.vn/files/usersfiles/files/68322581181.pdfIn PDF document text
    • http://pustelnik-budownictwo.pl/ckfinder/userfiles/files/66394644225.pdfIn PDF document text
    • https://kawotubizon.weebly.com/uploads/1/3/1/8/131871780/2310602.pdfIn PDF document text
    • http://ortosprendimai.lt/userfiles/file/13970902662.pdfIn PDF document text
    • https://penzion-palice.cz/content/wufelumavubuf.pdfIn PDF document text
    • https://gevexivojuler.weebly.com/uploads/1/3/4/4/134444242/pituwikuvixo.pdfIn PDF document text
    • https://pufizemopuvagup.weebly.com/uploads/1/3/1/4/131407511/nalufej-nopen-gugakepobufevel-lobovadez.pdfIn PDF document text
    • https://cankayapsikoteknik.com/kcfinder/upload/files/30544342598.pdfIn PDF document text
    • http://libertyquad72.fr/userfiles/file/67482493406.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=best%20electrical%20engineering%20books%20to%20readPDF 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_off0000eb5a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000eb5a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB5A 17312 bytes
SHA-256: 489eb980cb1c1de5f2176a5ff9759c6bb4223ab0d8660fb1ad41ee827606f23d
font_01_sfnt_off00011820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11820 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13037 10828 bytes
SHA-256: 010a19399c051d3eb6dadb836cbd52bd9384f1c7d684aceeca0dbd0268578c7a