Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ebbb3eb361e3bac…

MALICIOUS

PDF

68.6 KB Created: 2021-03-02 21:28:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2fb48383c705184532a1faaccb7fef2b SHA-1: a89e8f1fb2bfd3970f27cc63a1852dcea0324879 SHA-256: 2ebbb3eb361e3bac02262996ea62bddae3ec75db5f3d70e2850017e4baf5af7e
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jottigo.ru/wix?keyword=5x+plus+size+clothing+wholesale+australia PDF link annotation
    • https://cdn.sqhk.co/wizokawoxo/jbhghgg/offroad_jeep_driving_racing_stunts_mod_apk.pdfIn PDF document text
    • https://votarozoxanobo.weebly.com/uploads/1/3/4/3/134315144/xipekufetumoso.pdfIn PDF document text
    • https://cdn.sqhk.co/pofaxexaxi/i7OXugd/kaxusopusudijamanarosip.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/b69jaK4/50444910596.pdfIn PDF document text
    • https://wolaserirefuf.weebly.com/uploads/1/3/1/6/131637046/818831.pdfIn PDF document text
    • https://cdn.sqhk.co/tuminageka/phidgca/21206409280.pdfIn PDF document text
    • https://cdn.sqhk.co/jomonufo/gcNeggo/6228461432.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxesojogugu/zqd6hhd/jibekejo.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxudofexal/ie6uihx/radiant_defense_brush_png.pdfIn PDF document text
    • https://jijemelagif.weebly.com/uploads/1/3/4/0/134016961/9146790.pdfIn PDF document text
    • https://cdn.sqhk.co/sopiloroda/gfjdPFq/tap_tap_dash.pdfIn PDF document text
    • https://cdn.sqhk.co/sawibevas/hggjggc/67381974991.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/joint_affidavit_format_india.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/79276929353.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/lubak.pdfIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/70889352381.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/gorman_california_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/zatikafijodovurugiziwe.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_off0000cf61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF61 5432 bytes
SHA-256: b40e992c97ecfce90137121fc6c84688687c6d04d98351f77bc09106b92855e3
font_01_sfnt_off0000e1fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FD 10196 bytes
SHA-256: f32b42e46ef4c8096397ff699161d92aee26751a7fa6d297ef543ffae9d1f532

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