Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b6b1fc76ed7dbd7…

MALICIOUS

PDF

69.3 KB Created: 2021-10-03 09:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: 179e0d95d4235dc920898fd9c002954c SHA-1: 1041d26449b604494823d18970d06773eb207faa SHA-256: 9b6b1fc76ed7dbd75d370ea765bc9973103224d8d126d412999c227d8d891b99
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dtmaso.com/public_html/Imagens/file/kozegixelagigumiboniluwe.pdf In PDF document text
    • http://www.guus.edu.mn/ckfinder/userfiles/files/gojomibenobazupexejuw.pdfIn PDF document text
    • http://www.seminariomenorvalencia.com/admin/lib/ckfinder/userfiles/files/bejenizug.pdfIn PDF document text
    • https://xn--z4qq44i.xn--kpry57d/upload/actfiles/xapibuxo.pdfIn PDF document text
    • http://rambud.pl/uploaded/file/93807203625.pdfIn PDF document text
    • http://cdseoulps.com/uploadfile/fckeditor/file/rudijigapore.pdfIn PDF document text
    • http://studiotipaldo.com/userfiles/files/sirovewomewevuxuvuge.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/d407ce27e03d1897820eaca14aef04ad/94594838010.pdfIn PDF document text
    • http://keralastatetailorsassociation.com/userfiles/file/35659858753.pdfIn PDF document text
    • http://lmtechsolution.com/userfiles/xomijewut.pdfIn PDF document text
    • https://alternativecarrepair.nl/userfiles/file/jobimexetes.pdfIn PDF document text
    • http://kesifveotesi.com/files/bifoletu.pdfIn PDF document text
    • http://ckm-machinery.com/userfiles/files/degujumusomi.pdfIn PDF document text
    • http://cmtsport.com/pliki/luvipirudulu.pdfIn PDF document text
    • http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/82519726692.pdfIn PDF document text
    • http://culvercity.ilovepokebar.com/uploads/files/94883864680.pdfIn PDF document text
    • https://stalbeckers.nl/userfiles/image/file/34010968276.pdfIn PDF document text
    • http://flagrant-desir.com/userfiles/file/mereno.pdfIn PDF document text
    • http://393citizen.com/upload/files/xadubatavonotat.pdfIn PDF document text
    • http://neonatal-surgery.ru/userfiles/files/66749572174.pdfIn PDF document text
    • https://tortugafilms.ca/adminfiles/file/63629756125.pdfIn PDF document text
    • http://e-district.org/userfiles/file/gekedoxo.pdfIn PDF document text
    • http://grandioso.asia/editor_upload_image/file/raveta.pdfIn PDF document text
    • https://allytemp.ru/uplcv?utm_term=work+for+year+6In 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_off0000b082.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b082.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB082 10064 bytes
SHA-256: b5fbb5c1c4ea669d3986f5d3dc92a2ad659d63d261f0866d5628de07162ca7f0
font_01_sfnt_off0000c728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC728 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000df3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3A 16108 bytes
SHA-256: 3a9a1796bdc05584fbbba2d15379bbe4f4cbf4bfb41b29dda0737f9980f2be78