Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb1c9b778abb8e08…

MALICIOUS

PDF

68.7 KB Created: 2021-02-12 02:46:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 377819a5564b951e6b33f994cfbd3630 SHA-1: 036988e1f7896ea9351b1db54e251c0cbf704228 SHA-256: eb1c9b778abb8e08299f122d04d6881d9dd40ad83ccef67e61f64d6c7b6b1eaf
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://bologen.ru/wb?keyword=kongsberg%20defence%20aerospace%20annual%20report PDF link annotation
    • http://detonic-deutschland.website/alberto_moravia_la_romana878r1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414498/normal_5fe3570f020f1.pdfIn PDF document text
    • https://cdn.sqhk.co/dunokufimove/kwkibcO/pokemon_eevee_wallpaper_for_phone.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481406/normal_5ff3b715bfd98.pdfIn PDF document text
    • http://datinge.site/requisite_organization_elliott_jaquesktbfz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465538/normal_5fd0a98782bf6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501229/normal_5ffc9a9608c19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390330/normal_60029eba45a62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464871/normal_600bf28ae7c1f.pdfIn PDF document text
    • http://ekzo-fruit.ru/delhi_belly_movie_ringtones_free4ysr0.pdfIn PDF document text
    • https://cdn.sqhk.co/wirubetena/Abhgajh/79096135881.pdfIn PDF document text
    • http://relizebewugigad.22web.org/craft_paper_worksheet.pdfIn PDF document text
    • http://republvinb.fun/word_ladder_worksheets_for_middle_schoolhu50e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495838/normal_6015e0bbadafd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xeravujowa.epizy.com/69275650429.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_off0000ccdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCDC 5432 bytes
SHA-256: 7b16d556679686ee13a58824b9180d12f039b08d524e32ec10dd7a1b9073bd2f
font_01_sfnt_off0000df6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6C 11408 bytes
SHA-256: 5b484b20f08ad333398137ad9b1b7e1cb21fa4f1cdea3f4a7e311ca0907274ae