Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f15d4cf02fca3d…

MALICIOUS

PDF

82.6 KB Created: 2021-02-18 10:25:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0f63662dea65f1550a4fffd072153c17 SHA-1: 7e63266afe88b68581f2d94510b6f7d64ea23c60 SHA-256: 92f15d4cf02fca3d5540a62bfab301a29c3e8fa62b8c835c5b2f6b13fc95b32f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://seumenha.ru/wix?keyword=harvest+moon+switch+guide PDF link annotation
    • http://kuvuradivikosef.iblogger.org/84009826306.pdfIn PDF document text
    • https://cdn.sqhk.co/nujudemugipi/JVNfYid/slendrina_the_cellar_2_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/kewukapugino/iewEsjh/samsung_experience_service_login.pdfIn PDF document text
    • http://cleaner-inn.club/vexasebubukajizujobubozugj9j86.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/bjgjgau/super_mechs_hacked_arcadeprehacks.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/S9jPbja/46563532176.pdfIn PDF document text
    • http://itayoga.space/xorebugilexafozuvenaplduc.pdfIn PDF document text
    • https://cdn.sqhk.co/satasevubu/iZjjtBA/83667264082.pdfIn PDF document text
    • https://cdn.sqhk.co/kominepoli/hgcInje/19454604450.pdfIn PDF document text
    • http://hurricane1.space/bovufunidanemuzipabitekass66af.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/jc0RL8j/79050490803.pdfIn PDF document text
    • https://cdn.sqhk.co/purorelaz/hbiefOk/87430096341.pdfIn PDF document text
    • https://cdn.sqhk.co/matajikiwov/jdfw2zf/bebowizawukarot.pdfIn PDF document text
    • http://gratoraama.space/tan_application_form_formatvjzu4.pdfIn PDF document text
    • https://cdn.sqhk.co/leluforeref/geczhbG/autosync_universal_cloud_sync_and_backup.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/tojabixefova/bye_bye_blackbird_score.pdfIn PDF document text
    • https://s3.amazonaws.com/tafogusegabomu/66600899067.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/barbie_doll_princess_images_free.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_off000106d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106D0 5436 bytes
SHA-256: d9a966e53e9a90eeb29800dcf4063392692e3326887b943ce4aafb297cfb683a
font_01_sfnt_off00011934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11934 10640 bytes
SHA-256: b51811dd7832266516232ff9e45175498b69bfcb7271946a66aed07cb2051b3d