Malicious PDF — malware analysis report

Static analysis result for SHA-256 089fe0c919266a4c…

MALICIOUS

PDF

71.9 KB Created: 2021-02-12 19:08:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2b72e5b560f95c623c2b607bc9674524 SHA-1: eadbc87231efeb158846bf3f8441cf11205f3891 SHA-256: 089fe0c919266a4cf72fe6f86309468b046e9d4b5b79e8d58c07a1feafc3850c
144 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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=shmoop+hitchhiker%2527s+guide+to+the+galaxy PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379221/normal_600adbae8607b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446924/normal_5ffdbb0b34f22.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425910/normal_5ff5a5b976546.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451229/normal_601aad0b57cec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424692/normal_5fe8975aef1eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502436/normal_5feb17db64c9a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388271/normal_5fde25fdb0776.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379722/normal_5ff2f5b3d60e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381539/normal_601595a8e00fa.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/jozaponi/sunerasiwozefoz.pdfIn PDF document text
    • http://gowobubovojot.epizy.com/sixovabixugotegasenepov.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/best_cv_template_word_pakistan.pdfIn PDF document text
    • http://boponewutizubi.rf.gd/tepasewinedisup.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/36237611740.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/explain_how_butene_molecules_form_a_polymer.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/granny_smith_full_game_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/baasha_movie_song.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_off0000dbb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB7 5860 bytes
SHA-256: b69b1e415f9655852943f013d3209a0898374b6b534606bfae6522226b642e48
font_01_sfnt_off0000ef8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8B 10344 bytes
SHA-256: ec2b09f1e8cc1a8d5cefce95d8ad58fefe24376edcd326c8630f709951acaa4c