Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ead46fe909065f2…

MALICIOUS

PDF

75.7 KB Created: 2021-02-18 12:55:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 014e073c2c627873e2cc8ecc9fefed86 SHA-1: cd9940c912240318b663575c697d05e0064bc73e SHA-256: 0ead46fe909065f2593bff93a007b6315007f89d867db21802cd53cfd84eb468
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=crispin+the+cross+of+lead+study+guide+answers PDF link annotation
    • https://lipuxavevafip.weebly.com/uploads/1/3/1/3/131398459/1a66b5175b35b.pdfIn PDF document text
    • https://cdn.sqhk.co/buvaboda/2Kjgjhd/marine_light_attack_helicopter_squadron_169.pdfIn PDF document text
    • https://lalibirubifo.weebly.com/uploads/1/3/0/8/130873838/dutivofuxoguvizore.pdfIn PDF document text
    • https://cdn.sqhk.co/kulukopupiw/hegcgjf/dark_side_of_the_ring_episodes_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460446/normal_5ffebfc7dceba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376357/normal_5fcefa42d4208.pdfIn PDF document text
    • https://cdn.sqhk.co/vumivatuvi/jRifTji/idle_breakout_unblocked.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444377/normal_6027dd2eace0a.pdfIn PDF document text
    • https://xazefobilizap.weebly.com/uploads/1/3/1/3/131384081/98206.pdfIn PDF document text
    • https://cdn.sqhk.co/vusabutam/bNidt3n/zombie_infection_gameloft_walkthrough_chapter_3.pdfIn PDF document text
    • https://fogujudusimasob.weebly.com/uploads/1/3/4/7/134713994/fepulib_lukoz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390374/normal_5fcbc252d11ca.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/wozowuledij/internet_speed_meter_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/fukebejif.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/62226897701.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/the_nightingale_movie_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/coleoptera_identification_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/17033749186.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_off0000ebd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD3 5516 bytes
SHA-256: 418876e417a16ad25e70ff00770973565308339ec9b7f8f3f96bc6b7ab0803a4
font_01_sfnt_off0000fea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA9 10088 bytes
SHA-256: 9395f5349f005cdc4ea317b5a518c0e08bb92f88c5dd48c3c074e6cdb59e5040

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