Malicious PDF — malware analysis report

Static analysis result for SHA-256 82dc66bae76741f7…

MALICIOUS

PDF

70.4 KB Created: 2021-02-14 19:44:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 507e7b2dedc225d0385749de400ded49 SHA-1: 447cc6f05c8f27c2d7d801a70c2c1fd387f016b8 SHA-256: 82dc66bae76741f72befc735933254a41317a9e8290031ba0784de9adee82b0a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wb?keyword=dictionary%20%20english%20to%20punjabi PDF link annotation
    • http://workbykoder.xyz/godeduduguzagegefot52lpq.pdfIn PDF document text
    • http://stepka2016.xyz/bhakti_song_videogperw.pdfIn PDF document text
    • http://soul-felt.com/vrp_kamikaze_song3e9r4.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/oicgdSB/pagibosires.pdfIn PDF document text
    • https://cdn.sqhk.co/xusawikorut/he6Mggx/pros_and_cons_of_dictatorship_in_canada.pdfIn PDF document text
    • https://cdn.sqhk.co/guxifunuris/ichjie7/99620727816.pdfIn PDF document text
    • https://cdn.sqhk.co/nifodotiriru/hwBvRgi/baby_care_products_market_size.pdfIn PDF document text
    • http://gratoram.site/ant_killer_terro_active_ingredientliznh.pdfIn PDF document text
    • https://cdn.sqhk.co/gugirejol/ieUVMsO/general_hospital_spoilers_is_dante_coming_back.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/tokafanawa/18305746759.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/91300324954.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/78823453100.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/naruto_3d_games_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/amathanna_mp4_video.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/bigbang_bang_bang_bang_matikiri.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_off0000d65e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD65E 5512 bytes
SHA-256: 60cfb7a7c4fc935c9ffd2c5939ccba22ca52e4664378a66c9a3b7c128be1a212
font_01_sfnt_off0000e925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE925 10488 bytes
SHA-256: 608ce2c5ff6b51a0344777f871a9e2f283a16b410dcac8295a447fbad11d0bfc