Malicious PDF — malware analysis report

Static analysis result for SHA-256 696da38c5103c336…

MALICIOUS

PDF

67.7 KB Created: 2021-02-08 01:44:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 156dcf8fd3c3b00991d23aa7565903e8 SHA-1: 6199d3d4da75cafd0e01cac13d02b661c94420c6 SHA-256: 696da38c5103c336fb30fc547ab4849e09a6f89e433aae8c0c8ce186f1acfc89
194 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
  • 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/wb?keyword=bye%20bye%20by%20rjz%20song In PDF document text
    • https://cdn-cms.f-static.net/uploads/4448094/normal_5fd301a2beb6c.pdfIn PDF document text
    • http://afterdealer.pro/superman_iphone_wallpaper0ihcs.pdfIn PDF document text
    • http://proita.fun/80099867982e7ukj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415525/normal_60167f63d5a60.pdfIn PDF document text
    • http://idealica-italy.site/yo_gotti_art_of_hustle_zipbe21q.pdfIn PDF document text
    • https://cdn.sqhk.co/lenawemijixe/N9kDgi8/moto_gp_racing_games_online_play.pdfIn PDF document text
    • https://cdn.sqhk.co/pupevadojas/bjfRgdb/muwewugasuxerava.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491173/normal_6005a0fa225ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454170/normal_5fd71852321c7.pdfIn PDF document text
    • https://cdn.sqhk.co/zexetiminav/fWfljal/bullet_hell_100.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482403/normal_5ff42bc82aa34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387932/normal_60117cee5b916.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466370/normal_5fc75fb58dad3.pdfIn PDF document text
    • https://cdn.sqhk.co/kefekawit/gjeAqhf/wategufakowunewa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gosigugul.epizy.com/gerunds_and_infinitives_worksheet.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_off0000cda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA8 5028 bytes
SHA-256: 98e6916d4843bea99454289fb3370670a514aa29bdbfbf382d6ce5b5ed8ec754
font_01_sfnt_off0000deeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEEB 10340 bytes
SHA-256: 9ac5956b03f57279b4cd9b8fa45524667b1358052f8ac7aedb4ac30624b285f2