Malicious PDF — malware analysis report

Static analysis result for SHA-256 3027ae344a90a0d8…

MALICIOUS

PDF

64.7 KB Created: 2021-02-08 18:54:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 77dcd81515bc8f215eae3e3cef820842 SHA-1: 41c7645475512f141b89c10095fa0079a11eba21 SHA-256: 3027ae344a90a0d8a416cb30a8995bd82f5a2541cdcc0be44ed4ef215ccdbd2f
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=ultimate+call+hallelujah+chant+chords PDF link annotation
    • http://prizinsta365.website/kudesowoxasubsrxh.pdfIn PDF document text
    • http://greyfruit.space/lucky_supermarket_locations_near_mex4pgn.pdfIn PDF document text
    • http://pubgucbayim.com/fivumirewanadereg7dh7s.pdfIn PDF document text
    • http://pedron.fun/download_photoshop_cs5_portable_jalantikusc9fkw.pdfIn PDF document text
    • http://jetavimazi.22web.org/human_development_report_2015_theme.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484636/normal_5fe2d07fdc04d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mojebevusawibo.rf.gd/calorimetry_worksheet_key.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/56719706077.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/fidurinilaz.pdfIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/planetfall_celestian_guide.pdfIn PDF document text
    • http://kepatuzazavew.epizy.com/76460266442.pdfIn PDF document text
    • http://befojarariwowab.epizy.com/bogland_seamus_heaney.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/turuxugotiwe.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/lifibipa.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/craggy_range_sauvignon_blanc_tech_sheet.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_off0000c1d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1D7 5244 bytes
SHA-256: 1e4e0f6e2a33a2aaed63d17fa8c7547e101dbc7723ba0b25090160b3ce0af87b
font_01_sfnt_off0000d37e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD37E 10320 bytes
SHA-256: 47d185abebdd6a9904f71130359a5dc104cd9f347ca86c6d59cdbd2b2382e476