Malicious PDF — malware analysis report

Static analysis result for SHA-256 846d3af49eab872d…

MALICIOUS

PDF

68.5 KB Created: 2021-02-14 05:42:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4b9396af3bdb3933fead89de006d7b50 SHA-1: f32e4a70bc7de3228cac491e467c41d928fa02e2 SHA-256: 846d3af49eab872d89a418f8aeebbca87851c6c081e54f76b6165d064c7c646c
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://seumenha.ru/123?utm_term=7+deadly+sins+hentai PDF link annotation
    • http://trenketo.buzz/ableton_live_crack_windows5voa0.pdfIn PDF document text
    • http://paganel.world/lutogekojunuvonuwavokefizjz8d0.pdfIn PDF document text
    • http://nicepics.xyz/pbs_video_app_windows_10d2zwa.pdfIn PDF document text
    • http://barisetufor.66ghz.com/lifozevupewuwiridenuwojuj.pdfIn PDF document text
    • http://maska-respirator.shop/3169718516689wik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://topuwagib.epizy.com/61199915830.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/lonely_planet_guide_tulum_mexico.pdfIn PDF document text
    • http://duxupupin.epizy.com/3530747316.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/alice_in_wonderland_syndrome_case_report.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/mafaxazawi.pdfIn PDF document text
    • http://podozedomusajor.epizy.com/10896466062.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/itep_score_report.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/komatex_pvc_plastic_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/the_intouchables_theme_sheet_music.pdfIn PDF document text
    • http://litopuputorer.rf.gd/assassin_s_creed_3_java_apk_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_off0000cf58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF58 4904 bytes
SHA-256: 24524e7cc3b4afef42e4f6970fa71a3d76888a0e617c9aa2752c001b91009cf2
font_01_sfnt_off0000e00d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00D 10936 bytes
SHA-256: 5ff8d6b59de452bc742b250638aafaac521ab4bf5d38f69ff51037cf207e4dd7