Malicious PDF — malware analysis report

Static analysis result for SHA-256 e94e310fada77c57…

MALICIOUS

PDF

76.3 KB Created: 2021-02-26 23:07:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f5cfedc96aca098257129edeb353e311 SHA-1: 3759d224de14197a38fe67b46d1ddb3810fffd34 SHA-256: e94e310fada77c57c6f7a02540de07b6fe92d607cbe88e9da1c5a9c9ead80231
136 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
  • 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://pelibifir.ru/award?keyword=sharkrf+openspot2+manual PDF link annotation
    • http://simopuvoramawu.mywebcommunity.org/does_lexus_350_come_in_hybrid.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/vih2hhc/group_video_call_teams_free.pdfIn PDF document text
    • https://cdn.sqhk.co/rovukupovumo/aJg3ugf/gumidotikekadunojer.pdfIn PDF document text
    • https://cdn.sqhk.co/xegunorasu/iiIaXw4/descargar_carx_drift_racing_2_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486045/normal_60334601da151.pdfIn PDF document text
    • https://cdn.sqhk.co/zezaxemepe/giif0ha/77607612137.pdfIn PDF document text
    • http://nasufulorejuwe.mywebcommunity.org/how_long_to_cook_sweet_potatoes_whole.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415544/normal_6031019ce668d.pdfIn PDF document text
    • https://cdn.sqhk.co/moxulofilose/Z7oheMR/air_combat_online_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463264/normal_6006151b47e92.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/jiihjjD/24706986793.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/62644825291.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/vovuzize/76884217964.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/naduziwur.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/64832067965.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_off0000ed50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED50 5440 bytes
SHA-256: 25bd6fa81242ae8115589c48274f4d47586ce1e9df2d5c2b15db7578bcd37f25
font_01_sfnt_off0000ffa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA5 10872 bytes
SHA-256: 0d17604daf496da9b1f32e5f26a5061ec71f17d14f388a87af0614dbea1f7211