Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c2a515e0758c289…

MALICIOUS

PDF

73.1 KB Created: 2021-02-20 19:41:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: feaff76f0d3f888ee2ebd61e55b07543 SHA-1: 68592cb913f69713f64e3e645357924db2bbbdcc SHA-256: 6c2a515e0758c2898fd25c758acb3703de816ffb95a26002c76b7471f2783053
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://druttle.ru/wix?keyword=hooks+teaching+to+transgress+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4486368/normal_5ffdd4578c0f3.pdfIn PDF document text
    • http://vakotuwudar.22web.org/s_letter_dp_images.pdfIn PDF document text
    • https://cdn.sqhk.co/pifixijowoka/hMXjffc/horizon_forbidden_west_trailer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418399/normal_5fcc663e2f5d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467007/normal_5fec8738ab191.pdfIn PDF document text
    • http://prostosite.site/43665124086wiwmy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493578/normal_5fc882438e358.pdfIn PDF document text
    • http://wirelessinfo.ru/pudomusadanuvejoq1xc.pdfIn PDF document text
    • https://cdn.sqhk.co/jesovolavig/Hxciggd/download_car_simulator_2_og_mod_apk_data.pdfIn PDF document text
    • http://help-copyrighteamservice.com/low_cholesterol_diet_aha9z9qw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452161/normal_6001202d67ecd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387412/normal_5fffdc459d3bd.pdfIn PDF document text
    • http://on-arenas.com/fowekemidaleh6uv8.pdfIn PDF document text
    • https://cdn.sqhk.co/nupasoxure/XgdCE4i/facebook_messenger_video_call_tablet.pdfIn PDF document text
    • http://wrinklestiltskin.com/22116463347kavs5.pdfIn PDF document text
    • https://cdn.sqhk.co/rerunaropiz/ijRic9F/playstation_app_store_not_working.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488322/normal_5ff425c55d907.pdfIn PDF document text
    • http://the-job.ru/cleanflight_sp_racing_f3_firmwarey0moa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zepinurubav.epizy.com/9494332386.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_off0000e090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE090 5412 bytes
SHA-256: abf35663db678fd441823ca4ebdd3e436b4cdb173e25074876023f180110b4a6
font_01_sfnt_off0000f2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F2 10512 bytes
SHA-256: 19a6650239edc3ea25c6f8a7d68532286be094e9cd90c761310347d052fc15d7