Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff28dc0687057944…

MALICIOUS

PDF

121.9 KB Created: 2022-04-07 10:52:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: 8872e5da1c67297322379fa85e5ea2f3 SHA-1: bd9e1a126eefa2669d7d4928d5452f92015b4ee0 SHA-256: ff28dc0687057944608bd47836a8bf6d2e02795e98bd99a8c00ca10ea9679062
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://wadaxoleda.weebly.com/uploads/1/3/5/3/135311928/robudufebemalix_jalibilifif_titonanupona.pdf In PDF document text
    • https://chaletvenay.skidnapping.com/uploadfiles/files/bolatop.pdfIn PDF document text
    • https://comobrew.illomoc.com/newsite/images/user_uploads/file/65451202355.pdfIn PDF document text
    • https://communicationscharlevoix.com/admin/kcfinder/upload/files/6535201186.pdfIn PDF document text
    • https://gskrem.ru/img/file/jofanezugexesovate.pdfIn PDF document text
    • http://nijiclothing.com/assets/ckeditor/kcfinder/upload/files/15354974757.pdfIn PDF document text
    • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1623f20ff97978---dinuvofewemet.pdfIn PDF document text
    • http://yugang360.com/upload_fck/file/2022-3-23/20220323185611114797.pdfIn PDF document text
    • http://jrscjhadol.org/ckeditor/kcfinder/upload/files/mudexugafexidiwewaxo.pdfIn PDF document text
    • https://nokidekuget.weebly.com/uploads/1/3/4/6/134669445/xumaz-lerufiwedos-garutuk.pdfIn PDF document text
    • https://denepuwukofakar.weebly.com/uploads/1/3/4/3/134316944/503c5.pdfIn PDF document text
    • http://metabolit-plus.ru/files/file/35322168485.pdfIn PDF document text
    • https://buweselaxe.weebly.com/uploads/1/3/0/9/130969446/6f6a6bad81.pdfIn PDF document text
    • https://rubopawine.weebly.com/uploads/1/3/1/0/131070645/3d63fd.pdfIn PDF document text
    • https://fundacjaartfreeart.pl/userfiles/file/nimuvedijixupomasumuna.pdfIn PDF document text
    • http://sl-light.ru/design/img/upload/file/zukisase.pdfIn PDF document text
    • https://actualite.autopromo.com/fckResources/file/kigad.pdfIn PDF document text
    • http://lorichphoto.com/pictures/file/15806808420.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=bicicleta%20el%C3%ADptica%20nordictrack%20act%20commercial%20opinionesPDF link annotation
    • https://bicicletaeliptica.org/#opiniones���…BicicletaIn 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_off0001722a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001722a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001722a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1722A 19532 bytes
SHA-256: 067bed0e05d40208beb3cdc6b5486926cbf29507520429069f872c51dcb69d69
font_01_sfnt_off0001a4e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A4E7 10884 bytes
SHA-256: c74efee56ba242a93e5d7a2ec43062d0c3acdc715f1453d7d0a983e991ead833
font_02_sfnt_off0001be14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BE14 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1