Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61f3a5d5fc36871…

MALICIOUS

PDF

96.4 KB Created: 2022-04-10 18:47:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: eead524d5c2708da394a5fcfe0742358 SHA-1: d1107690f3f1ad2a52b45f54dd5e9022241f8ece SHA-256: b61f3a5d5fc368712ba5982374e64710f5c7d561677d060d0e6045bbaf1cdd0f
276 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 8

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://rarogifiteli.weebly.com/uploads/1/3/4/5/134529860/2699048.pdf.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://yoyep.co.za/YmrXLWy8?keyword=ksc%20beretta%2093r%20auto%209 PDF link annotation
    • http://www.albertoabajolimousin.com/abm/Bibliotecas/kcfinder/upload/files/61845895721.pdfIn PDF document text
    • https://christavedelaar.nl/bestanden/files/zenepizesowuzija.pdfIn PDF document text
    • http://parcroyale.hk/userfiles/93522645867.pdfIn PDF document text
    • https://rarogifiteli.weebly.com/uploads/1/3/4/5/134529860/2699048.pdfIn PDF document text
    • https://wudizibi.weebly.com/uploads/1/3/4/4/134477582/vazuzak.pdfIn PDF document text
    • http://studiogiamberardino.it/userfiles/files/motituxorudebuw.pdfIn PDF document text
    • https://www.vyrobadps.eu/admin/kcfinder/upload/files/97385679885.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/47631640086.pdfIn PDF document text
    • https://produktybhp.pl/pliki_user/File/36600424484.pdfIn PDF document text
    • https://jinaverew.weebly.com/uploads/1/3/4/2/134235607/4035001.pdfIn PDF document text
    • https://wibosopepizasu.weebly.com/uploads/1/3/4/3/134332643/pagemuvoli_getegakadofep.pdfIn PDF document text
    • http://motolargo.pl/userfiles/file/vatamodikekobopoferusuvot.pdfIn PDF document text
    • https://jamexujibelesuw.weebly.com/uploads/1/3/4/7/134748805/nuwodivim_zolapedafawigi_riliwefen_zevixasadu.pdfIn PDF document text
    • https://oldalunk.hu/userimages/files/xajenabarugovitobigoziji.pdfIn PDF document text
    • https://zowagozu.weebly.com/uploads/1/3/4/4/134404721/4705829.pdfIn PDF document text
    • http://villapastello.com/admin/data/files/files/pakijixajoxurufikajoz.pdfIn PDF document text
    • https://zidipezes.weebly.com/uploads/1/3/5/3/135314083/loworegituwadalasa.pdfIn PDF document text
    • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1622fff9b17a9f---21636604504.pdfIn PDF document text
    • https://nokidekuget.weebly.com/uploads/1/3/4/6/134669445/9875ce.pdfIn PDF document text
    • https://porfic.com/fotos/file/jafozogoli.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_off00011379.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00011379.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11379 18436 bytes
SHA-256: 1984bfeb42aa84d961e88f534f9522f681072156d4dfbffa1ddd81dea298f845
font_01_sfnt_off0001440d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1440D 10552 bytes
SHA-256: 54dc5933f7ffd05bed74fcfd5db0a6d8cac8b8d72e924d000b018bcc0880ac13
font_02_sfnt_off00015c5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C5A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1