Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6d3115f5175799…

MALICIOUS

PDF

77.2 KB Created: 2021-09-18 13:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 3cf205933ff1f853d43231ca04ba0334 SHA-1: ddf0742326d634c5b53999509413a679f5e82fbc SHA-256: ca6d3115f51757994e0e85f91c3a6b725fc139948c4dde175278d2dd840296e1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9927

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 https://khonggiansachhanoi.vn/uploads/files/kolixudag.pdf In PDF document text
    • http://precisionsurgicalworks.com/alpha/ckfinder/userfiles/files/faxelutopozenevedi.pdfIn PDF document text
    • https://cplastik.com/data/cms/file/88737830414.pdfIn PDF document text
    • http://cee1968.com/ckfinder/userfiles/files/50449697514.pdfIn PDF document text
    • http://tagsu.com/attachments/fckattachments/file/51574856265.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161409c8def02c---41195368512.pdfIn PDF document text
    • http://www.impactit.in/ckfinder/userfiles/files/lewamodepavolemomed.pdfIn PDF document text
    • http://inimtrento.it/userfiles/files/fidinojotonutorano.pdfIn PDF document text
    • https://performanshost.com/calisma2/files/uploads/vowexuwuwigakuzoz.pdfIn PDF document text
    • http://ilonew.tasksplan.com/ckfinder/userfiles/files/xotiporewetexu.pdfIn PDF document text
    • http://praconsulgroup.ru/pict/file/nelixurudig.pdfIn PDF document text
    • https://processwork.archerhuang.com/ConImg/files/bomowufexebomoveno.pdfIn PDF document text
    • https://millinerandassoc.com/files/file/10760987505.pdfIn PDF document text
    • https://jaukiaplinka.lt/ckfinder/userfiles/files/50492867338.pdfIn PDF document text
    • https://rts-wm.com/ckfinder/userfiles/files/44320977501.pdfIn PDF document text
    • https://7foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/58079392212.pdfIn PDF document text
    • http://uniquecharacters.com/upload/files/vaworivirodum.pdfIn PDF document text
    • https://bisleriuber.genefied.co/ckfinder/userfiles/files/guwuretoreninunined.pdfIn PDF document text
    • http://studiomanzella.com/userfiles/files/virelefeza.pdfIn PDF document text
    • http://betheaskssd.com/flash/betheaskssd.com/file/jiziferibigenanu.pdfIn PDF document text
    • http://taispacedesign.com/upload/files/pudajewuketisub.pdfIn PDF document text
    • http://servicedental.it/userfiles/files/xolijomifatudijefijej.pdfIn PDF document text
    • http://anninh247.info/upload/files/fisetanojolekexitusorite.pdfIn PDF document text
    • https://oniceh.ru/uplcv?utm_term=forces+of+freedom+androidPDF 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_off0000b893.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b893.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB893 20940 bytes
SHA-256: 92378dc1e60329a4c156ef255daa72c0d103a3a2285f86dc6f8c557e9acf373e
font_01_sfnt_off0000edf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10607 10472 bytes
SHA-256: c99ef5b1fbd3d55009bb5aa2ed74f1d9e0beda4bf9f70015fa9d391ce2a62c3c
font_03_sfnt_off00011db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DB8 2076 bytes
SHA-256: 1f799b7ff30558cb797733d0d863c6226dc4eb0c112cd2fbd9ecd7b64b66777f

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