Malicious PDF — malware analysis report

Static analysis result for SHA-256 88ba28beed1a44be…

MALICIOUS

PDF

75.1 KB Created: 2022-05-04 18:15:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 4a128637681c576d63008752f81de6f4 SHA-1: d3c513eaa093c725fbfb8c36822fb53f3895a34c SHA-256: 88ba28beed1a44bec731ce6444a6bca9573400a2148c1cf6746e0333389d5923
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://stapi.org/assets/kcfinder/upload/files/31560129532.pdf In PDF document text
    • https://mizipajosufajod.weebly.com/uploads/1/3/4/0/134040675/3477326.pdfIn PDF document text
    • http://emke.hu/uploads/ckfinder/userfiles/files/lavavamuriwonutimid.pdfIn PDF document text
    • http://anticacarsulaeborzoi.eu/userfiles/files/zirufudufenufuvomisipi.pdfIn PDF document text
    • https://wemservice.com/ckfinder/userfiles/files/tiweriwagubuted.pdfIn PDF document text
    • http://www.fondazionepolis.it/blog/ckeditor_fullcolor/kcfinder/upload/files/jaborarazaguwumixak.pdfIn PDF document text
    • http://glassinter.de/kcfinder/upload/upload/97042585071.pdfIn PDF document text
    • http://taiwanquinoafamily.com/shopadmin/upload/files/62271244426.pdfIn PDF document text
    • https://westpakusa.com/phpsites/vertical_living/uploads/file/xuzomurazewenitujo.pdfIn PDF document text
    • http://www.novosib-sport.ru/ckfinder/userfiles/files/vebotunolowiginuxev.pdfIn PDF document text
    • https://luxury77.com/kcfinder/upload/files/wefuvikinomi.pdfIn PDF document text
    • http://lesbambousbleus.fr/ckeditor/upload/files/38245018646.pdfIn PDF document text
    • https://pevivifigevesiw.weebly.com/uploads/1/3/5/3/135315965/d61b4a1926b0aa.pdfIn PDF document text
    • http://xn--pbtp5wdvx.com/userfiles/files/kemefepidumalemeligabuzed.pdfIn PDF document text
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/c2604e9efd3a4c18d3ee520524d34227/69661822270.pdfIn PDF document text
    • http://sigmabhp.pl/userfiles/file/50324479526.pdfIn PDF document text
    • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1624a89164fb4b---fodopubagipadunazupa.pdfIn PDF document text
    • http://vlajamo.cz/images/file/nomarosijikixa.pdfIn PDF document text
    • https://pre-www.bridge-academy.com/uploaded/ckeditor/files/biviwevukimavubeb.pdfIn PDF document text
    • https://colod.co.za/YmrXLWy8?keyword=singer%20merritt%202502c%20sewing%20machine%20manual%20user%20manual%20modelPDF 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_off0000bf6d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bf6d.bin)

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF6D 16656 bytes
SHA-256: 061e34e4a7249344ada9a46f24c698461f991fd6e457f6d0a021a2e78401bec6
font_01_sfnt_off0000eaa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000102ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102BA 11456 bytes
SHA-256: 9c04eb27db6718604cf1db5adb83c279fe1f977ecfdc5a62619c6b162964e61e

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