Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee99d9d477f5e64c…

MALICIOUS

PDF

70.8 KB Created: 2021-02-25 17:09:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3ed70b7a1d482afe10c16ca7a40e8447 SHA-1: 0d206dc7a5c4ead12cf36146147bacccebc0631a SHA-256: ee99d9d477f5e64c41ba154ab413fa2aee78cddeb997328fc8f7a5f4f7393b01
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://leonvi.ru/award?keyword=recognize+the+common+purposes+for+writing PDF link annotation
    • http://zavupefedeba.22web.org/automated_guided_vehicle_system_agvs.pdfIn PDF document text
    • http://newyearshop.site/black_leather_platform_ankle_bootsi0dru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476432/normal_5fcc230561b32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368474/normal_60324d30d38fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485578/normal_60221ba692479.pdfIn PDF document text
    • http://woxuruko.medianewsonline.com/the_hunger_games_full_movie_download_in_hindi_dubbed_filmyzilla.pdfIn PDF document text
    • http://gufutaca3.xyz/25013125272n86du.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390373/normal_6016d045bb46a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/giger_necronomicon_download.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/68213075089.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/fevibu.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/video_tsunami_di_palu_dan_donggala.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/15407491267.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/why_will_my_bluetooth_not_turn_on_mac.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_off0000d96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96A 5336 bytes
SHA-256: 8e9d43262455e93f74c6da414ddeb8242e65e3eca2d4c0c9e9db5cc95e56edca
font_01_sfnt_off0000eb8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8E 10160 bytes
SHA-256: fe12fee9ef8eb2970b8804c415bfbb5974372c6c756ea17a891430d478c0ffce