Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f8e86a210a62fce…

MALICIOUS

PDF

72.3 KB Created: 2021-02-25 03:36:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: cd98e87c61fcaa396dee7b3e776f1e2e SHA-1: 918dbe13771fc5c00049e87cab99263fac3e1266 SHA-256: 9f8e86a210a62fcede1126f28c450eea8963da97717cc9d3114f066b1179ff50
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://jottigo.ru/award?keyword=maze+runner+the+death+cure+book+summary PDF link annotation
    • https://cdn.sqhk.co/menaleratupo/Gfiaicj/dictionary_in_spanish_only.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/bUAr5Tq/71307688193.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/will_chamberlain_wireless_keypad_work_with_genie.pdfIn PDF document text
    • http://ragixanomus.iblogger.org/dvdvilla_bollywood_movie_free.pdfIn PDF document text
    • https://cdn.sqhk.co/resilano/fAggjf1/90486022062.pdfIn PDF document text
    • https://cdn.sqhk.co/pimepojuti/hdEiaZE/kitchen_family_room.pdfIn PDF document text
    • https://cdn.sqhk.co/ratevusur/XhfWNze/arduino_iot_cloud_supported_boards.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475406/normal_6001925b910ba.pdfIn PDF document text
    • https://cdn.sqhk.co/xurajalijok/dxPicjg/25127853579.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/kevava/iceland_pronunciation_guide.pdfIn PDF document text
    • http://fefemegazo.rf.gd/treasure_hunt_game_clues_with_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d21c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD21C 5340 bytes
SHA-256: dd7612fff93582d0096daa3c300858f15babebd102ec6f051cdeb1b6bd5fb4ce
font_01_sfnt_off0000e420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE420 10000 bytes
SHA-256: 0da7b8411348e630f62646864215f85c92c385c8c1ec9083defbb2aa27e565e6
font_02_sfnt_off0001064b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1064B 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3