Malicious PDF — malware analysis report

Static analysis result for SHA-256 6747fa50e64a10eb…

MALICIOUS

PDF

66.8 KB Created: 2021-02-27 06:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7124faef73cb145b8ae6b71ba0c0ef48 SHA-1: da6a9e5fbc3973e017034dfd67e7d896cc194697 SHA-256: 6747fa50e64a10eb93500625b6192dbc9825a84c6f85be3672ed35778ea36214
194 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
  • 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://crophysi.ru/award?keyword=how+do+i+program+my+genie+remote+to+control+my+tv In PDF document text
    • http://bhd-management.space/36062387278w7miz.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/geiaiau/electrician_apprenticeship_oregon.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/iay93ij/purofekogodejafumep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386092/normal_602abef9da946.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490364/normal_601fb0d361911.pdfIn PDF document text
    • http://kujunat.medianewsonline.com/how_to_connect_cardo_scala_rider.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378830/normal_60305aff38ded.pdfIn PDF document text
    • http://mandarin-fruit.space/wepesipiwezqzje.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366043/normal_5fd04f7e50f77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451752/normal_6033aafe09e77.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/xesigeze/formato_de_carta_poder_mexico.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/internship_contract_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/jokunufelisusodosewe.pdfIn PDF document text
    • http://nojikigor.myartsonline.com/the_wanderers_where_are_they_now.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/barbie_girl_song_with_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/excel_vba_worksheetfunction_average.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_off0000c9aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AA 5428 bytes
SHA-256: 0147738e98fdad6fa2239add3059125a2be2f1d7651629561674f0c8eaa73c52
font_01_sfnt_off0000dc2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2B 9912 bytes
SHA-256: 2d478e48e07667bcc19dd92f80755f7d34acca7886d20693addfecfa0f3d0f4c