Malicious PDF — malware analysis report

Static analysis result for SHA-256 83fd54fc74012db6…

MALICIOUS

PDF

79.4 KB Created: 2021-02-25 01:31:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: db5431109488b164afbc885ef1e7db9c SHA-1: a27a651944202aa168eb5ffd1b142e3c754febd9 SHA-256: 83fd54fc74012db61071fb7112f85774e01f14c9871f276edeac143b1b9fa668
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/award?keyword=who+is+akasha+from+queen+of+the+damned PDF link annotation
    • http://momsmall.space/nojinelovilonozosirorivb3i9m.pdfIn PDF document text
    • https://cdn.sqhk.co/pulijidapis/Ygdjejh/solar_system_interactive_3d_map.pdfIn PDF document text
    • http://gagivukamuw.getenjoyment.net/lamekalirumebobedagibasu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446937/normal_5fff11e653239.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413346/normal_5fd9b050bbaaa.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/jcjgc7d/ridesajamu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498992/normal_5fca102ea10dc.pdfIn PDF document text
    • http://max-lifting.store/lista_de_verbos_regulares_en_frances_conjugadosgp5u3.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/zasopego.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/when_did_bc_and_ad_become_bce_and_ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376404/normal_5fd9597812e7d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fikuvine/butterball_indoor_turkey_fryer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/nefuxoxomovizedur.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/28959131879.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/cdc_prevnar_vaccine_information_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/adobe_blackout_text.pdfIn PDF document text
    • http://fubavinexazixo.onlinewebshop.net/lejegebakozomosabate.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/repakafu.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_off0000fb9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB9E 5316 bytes
SHA-256: 2ea8a5b1423ba1cb90b693f00f2ade144733fb982d54efa0e3f6318e74f141fe
font_01_sfnt_off00010d95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D95 10196 bytes
SHA-256: 9fc50efa7875883b0271338b270d7c5b713a770b81db5f67cce51b7dd2e47e59