Malicious PDF — malware analysis report

Static analysis result for SHA-256 77226f777410c985…

MALICIOUS

PDF

72.5 KB Created: 2021-02-17 07:38:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e40ee61fb3b1efe5e0eebe19332fe49d SHA-1: 91b7389b28ab39c7a04929703c17e4794dc55bc2 SHA-256: 77226f777410c985417eb84b2a5b0db6ed20de51766db695835b41bcf3710d25
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/wix?keyword=thinking+bout+you+ariana+grande+lyrics PDF link annotation
    • http://construt.site/cecillia_wang_novel6xljp.pdfIn PDF document text
    • http://freshmind.net/apocalypto_2_full_movie_tamilt9buw.pdfIn PDF document text
    • http://islta.fun/giwovopisub29fc0.pdfIn PDF document text
    • http://teasmall.space/bavowidovukovegovixabetixcb34e.pdfIn PDF document text
    • http://womans30planet.com/photo_lab_picture_editor_app_origin_countryz3gj7.pdfIn PDF document text
    • http://kmikaerfs.ru/682746479904hdl9.pdfIn PDF document text
    • http://sosyaltakipcipanelin.com/weider_pro_4300_home_gym_exercise_chart7tnxf.pdfIn PDF document text
    • http://bitsracing.net/zasavilalur6rnca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388272/normal_602b827ce1bd8.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/buxoparadazegu/chakithaya_song_video_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/love_hd_full_screen_wallpaper.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/minugorigoripije.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/49184626745.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/lamabutera.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/pd_bd_sharma_university_date_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/54696094420.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/powerpoint_website_mockup_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/resize_textview_android.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_off0000df40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF40 5456 bytes
SHA-256: cf029ecb3cc25b5ee6ab5260a9f430779b9bf7be54c7ccdf1c64a631c856c30b
font_01_sfnt_off0000f1ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1CA 10204 bytes
SHA-256: 20e563bdf958c7a94363fcf56f6c5be1494ba48a8f54a329e20c740be6c6a7c6