Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e8636bddf69caa7…

MALICIOUS

PDF

71.1 KB Created: 2021-02-14 11:44:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 66b15f69cb83d97024db4b3a7273be1c SHA-1: e3dc63196087faf3ed594031cf9cf4c532ea6063 SHA-256: 3e8636bddf69caa7af319d79d6076cd3796a7239883d50d8be568af8ff0b8123
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://jottigo.ru/wix?keyword=jon+gordon+training+camp+playbook+pdf PDF link annotation
    • https://cdn.sqhk.co/pevelefotuve/jcichiM/72954149353.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372963/normal_5fda0574b281f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470841/normal_60184e92ede00.pdfIn PDF document text
    • https://cdn.sqhk.co/vemudumuxixu/3dvhsdo/gravity_falls_anime_pictures.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404122/normal_60111336029aa.pdfIn PDF document text
    • http://natasisenexu.22web.org/98151403606.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383680/normal_6003f084d5235.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dodupubi.epizy.com/puduvelifolufulafo.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/73817551209.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/zasafizugexaguki.pdfIn PDF document text
    • http://vanabigura.rf.gd/94098029992.pdfIn PDF document text
    • http://zidumive.rf.gd/84081147970.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/fogifagutazimizikuwote.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/fast_typography_after_effects_template_free.pdfIn PDF document text
    • http://bexinoj.epizy.com/kreg_pocket_screw_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/video_er_for_pc_windows_8.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/lks_biologi_sma.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_off0000d6f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F6 5592 bytes
SHA-256: dc6c4f43def1dd5cc912ab6286db94e867a7ffd6c751de1794ff5fe352b0bd7c
font_01_sfnt_off0000e9f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F1 10844 bytes
SHA-256: bddb99f64b9ce97b1994b75af55020167878f40a1a6a7221048d05bbd688c6a6