Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b3c75d5474ea0ed…

MALICIOUS

PDF

70.5 KB Created: 2021-02-16 13:18:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 7c78218a66819bfc042308f719aac6ea SHA-1: a8d6057af46ab40d4f106e276c958e0cd8403e48 SHA-256: 8b3c75d5474ea0edee26ab3c9ba405579cd3c89b154f0ddaea432fdfc5bf643a
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://leonvi.ru/wix?keyword=mahatma+gandhi+servant+leadership+style PDF link annotation
    • https://cdn.sqhk.co/pugijuzo/hginOje/chicken_invaders_2_christmas_edition.pdfIn PDF document text
    • https://cdn.sqhk.co/wekonexiw/mzmic5u/regency_theatres_granada_hills_granada_hills_ca.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/EXiiYmn/world_soccer_stars_game.pdfIn PDF document text
    • https://cdn.sqhk.co/pobefozo/Jmjfhd8/super_run_adventure_world_2_zone_1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417808/normal_5fef8fec693d1.pdfIn PDF document text
    • https://cdn.sqhk.co/someteku/aF3bPQL/video_looping_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/putizimetiwe/hjDxSNm/84043647827.pdfIn PDF document text
    • https://cdn.sqhk.co/retagigimusa/gfjehjb/voa_news_persian_live_tv.pdfIn PDF document text
    • https://cdn.sqhk.co/paxelababeg/jgianrA/spiritfarer_animal_fat.pdfIn PDF document text
    • https://cdn.sqhk.co/febenapox/7nUghhb/mad_skills_motocross_2_download_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384045/normal_5fce22bdda0df.pdfIn PDF document text
    • https://cdn.sqhk.co/lefuwaregew/kUjaghi/35327563705.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446496/normal_5fdd5a3a24d55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464067/normal_60092a46d6cbc.pdfIn PDF document text
    • https://cdn.sqhk.co/kurinunuwor/hOijhi4/pencil_sketches_easy_drawing.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xewewiwuxadul.rf.gd/bhojpuri_video_dj_hd_song.pdfIn PDF document text
    • http://fukatotapi.epizy.com/urgent_important_matrix_template_and_worksheet.pdfIn PDF document text
    • http://rikovaniroxatox.rf.gd/corbettmaths_estimation_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD904 5540 bytes
SHA-256: 5185a443c7ffac83b693556eed0653a1f03f97839f63e5a3e80065d04e691d1f
font_01_sfnt_off0000ebc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC7 9688 bytes
SHA-256: 21c60492f1741b657412f52ed6befa0a587e83707dd13307f2526950c5219993