Malicious PDF — malware analysis report

Static analysis result for SHA-256 2016090c89e8b944…

MALICIOUS

PDF

66.6 KB Created: 2021-02-21 11:19:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a1f8073b39cf51eca5f2d006f52a2d59 SHA-1: 6e30ab613d7d54cbaa0042008d4ee3b34082cfb7 SHA-256: 2016090c89e8b944e650ad22f25ba0e3eb3f7053d80fcbdb390b9dc462a5e9f6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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/wb?keyword=romeo%20+%20juliet%20full%20movie%20leonardo%20dicaprio PDF link annotation
    • https://cdn.sqhk.co/pibigovaxavu/jdSifBp/cod_loin_recipes_baked.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/gdfTghu/brain_on_truck_physics_puzzles_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/bipokagiti/jcJv5lf/komuzikifovisigujibok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403823/normal_600ca0099c3c4.pdfIn PDF document text
    • http://kadesevi.iblogger.org/7556643672.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/0jcjdhh/31780642431.pdfIn PDF document text
    • http://wegolurubakisud.22web.org/achari_america_yatra_movie_songs_telugu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468871/normal_5fe73084a8b68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368745/normal_5fdfb14b5019f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xonekalanalu.epizy.com/annamalaiyar_potri_songs_free.pdfIn PDF document text
    • http://kagumaxapa.rf.gd/demonology_warlock_4._3._4_pve_guide.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_off0000c86d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC86D 5268 bytes
SHA-256: 80b9f41d1ac0bc01d4e3a6219011abe5ba05e7f78b5c2f04c4c9697ce3b39819
font_01_sfnt_off0000da51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA51 10428 bytes
SHA-256: 441d69b03924ae63ab482da0a5f6a24fba74c72609e93dc7f2fcd3dbe06177d5