Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded34bb410203db8…

MALICIOUS

PDF

66.6 KB Created: 2021-01-30 00:06:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5ccea6fd850c2759d35c877a5a73b014 SHA-1: 95200ad679dd4d5397274127de886351e7420c9f SHA-256: ded34bb410203db891c6a9b871f054b96f7b19a0d449ae8c6ff942c7068e3159
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wb?keyword=color%20touch%20effects%20images PDF link annotation
    • http://cartest.pro/kung_fu_panda_2_lord_shen_wiki66hkh.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/hhbggzN/28192043869.pdfIn PDF document text
    • http://scriptbook.xyz/81947161476z00cg.pdfIn PDF document text
    • https://cdn.sqhk.co/kalijada/Hhd19ji/sick_wid_it_crew_drop_tiktok.pdfIn PDF document text
    • https://cdn.sqhk.co/novigigexuxo/ibhjhfR/vaximatajumoz.pdfIn PDF document text
    • https://cdn.sqhk.co/supesuvepo/gebaijz/lagefodamobi.pdfIn PDF document text
    • http://kmplitka.shop/el_aprendizaje_basado_en_problemas2wbkg.pdfIn PDF document text
    • http://viputixezererej.66ghz.com/83544531741.pdfIn PDF document text
    • https://cdn.sqhk.co/dogutadova/tTififR/71071769308.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/ADgijcW/cowboy_golf_hat.pdfIn PDF document text
    • http://cashbackk.site/tozosc72ho.pdfIn PDF document text
    • http://smallita.space/craftsman_truck_tool_box_accessoriestpqyq.pdfIn PDF document text
    • https://cdn.sqhk.co/lebogomatoze/hiiaja8/99612223494.pdfIn PDF document text
    • https://cdn.sqhk.co/kolokejo/Z4aFrpk/20052450244.pdfIn PDF document text
    • https://cdn.sqhk.co/gusoguribus/diehggg/77091081511.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ca1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA1C 5200 bytes
SHA-256: 2da668553ffe65cf3859ed79c63808b85c39d69b6cb5f5a2479c356ce84090ca
font_01_sfnt_off0000dba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA1 10000 bytes
SHA-256: 80e396c3212de56bc9132e6c94a1531e49fcc676dcedf11d57dc525b35fb6d01