Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2f850d248dbcd80…

MALICIOUS

PDF

75.6 KB Created: 2021-03-02 13:35:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e03eec656d2537a27e7b155994a5d229 SHA-1: 6892c82d93e69c6e7dd8bcb14b84f8fcfddf1c84 SHA-256: c2f850d248dbcd8050636cc46fcb3db3bae156cb5f62600a3595985251d2d687
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 https://jacksth.ru/award?keyword=cantina+mix+los+caminantes+descargar+mp3+gratis PDF link annotation
    • http://br1.red/58838968263hh8n2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380392/normal_6003aec88d328.pdfIn PDF document text
    • http://onlinetiser.website/78231864060hdnub.pdfIn PDF document text
    • http://opt15.ru/tosifajavasafunubale73gc3.pdfIn PDF document text
    • http://xupevagadozojad.22web.org/fiwuva.pdfIn PDF document text
    • http://marinarus.space/mobijajyols.pdfIn PDF document text
    • http://sreda.city/83533498779j9v5j.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369518/normal_601d5b66eb7bb.pdfIn PDF document text
    • http://sallehq.xyz/white_christmas_lights_outdoor_ideasofq1w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410006/normal_5fd142c43abed.pdfIn PDF document text
    • https://cdn.sqhk.co/wojusipi/ejghhOm/pugokunoxakid.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tasijojaludet.rf.gd/blurryface_live_dropbox.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/27564786251.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/mini_x6u_bluetooth_speaker_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/freeport_offshore_weather_report.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0E 5532 bytes
SHA-256: a17e397e3fe09b1c304926b63e24b1901c8e09027947dd8d79277b933806340b
font_01_sfnt_off0000f0cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CB 15100 bytes
SHA-256: 462605aa5fc078a1380c2304d2548e8cbb59cab303771f50a0ec9b59e4ddec0a