Malicious PDF — malware analysis report

Static analysis result for SHA-256 96e18511a7cb115a…

MALICIOUS

PDF

58.7 KB Created: 2021-02-14 16:32:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 35722304e19eb6426883f76e161060c2 SHA-1: 6db65efe680fbd738cde43717fce97da6fe5b0f1 SHA-256: 96e18511a7cb115a3c2df7e7050185c0e18f0a887220aa0efec5cb272e5cb631
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/123?utm_term=low+poly+trees+blender In PDF document text
    • https://cdn.sqhk.co/xejudawadoni/gjefjiR/19836848210.pdfIn PDF document text
    • http://hayatevesigar.online/chevy_express_van_performance_parts33zmm.pdfIn PDF document text
    • http://teleporttur.ru/mobile_legends_harley_guide_20196gy4k.pdfIn PDF document text
    • http://blog-millionaire.buzz/naat_pak_audio_freeha87c.pdfIn PDF document text
    • http://everydays.space/fomivipibupadixovinanif15dx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mapojadesagez.epizy.com/best_free_ebook_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/vunibepor.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/bootstrap_cdn_link.pdfIn PDF document text
    • http://mewexudidis.epizy.com/alter_ego_nollywood_movie.pdfIn PDF document text
    • http://fibonudonug.epizy.com/98199359775.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/39724757061.pdfIn PDF document text
    • http://faloboxodutak.epizy.com/51737865237.pdfIn PDF document text
    • http://ganesuk.epizy.com/75094954916.pdfIn PDF document text
    • http://turufefi.rf.gd/siripawuk.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/tripadvisor_review_response_guidelines.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_off0000ad7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD7A 5020 bytes
SHA-256: 11b4ed88a77ea6e3c02b607c9409094e9a9d342a7a01ad8602f1f5e99b5c61d1
font_01_sfnt_off0000bead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEAD 9244 bytes
SHA-256: 61aa43f760d7ee3fd298d7b90aa30c9d227166e09cd4d5f7fab763a2317676e1