Malicious PDF — malware analysis report

Static analysis result for SHA-256 e412ef7e76bcac29…

MALICIOUS

PDF

65.7 KB Created: 2021-03-02 13:55:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9839b4bb12b5b2145db261d976dba1ed SHA-1: 92b14810c5b9e7b921ce916c09768dc7f66adbb9 SHA-256: e412ef7e76bcac29f5a69e745e2bde2093e8f5acd3860af08235d57f1e295217
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://nipisod.ru/award?keyword=02+yamaha+kodiak+400+value PDF link annotation
    • http://puxelamonikur.22web.org/welch_allyn_connex_spot_vital_signs_service_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/jusulikipe/jiesias/music_audio_player_software_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rudugebakivo/hjaQIig/king_of_arcade_fishing.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392193/normal_60331136e8062.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/hchePjd/vajaxiwibu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375361/normal_6000858a27a11.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/davubewu/tegubuvadavoxipijupoze.pdfIn PDF document text
    • http://waketekedoveke.epizy.com/the_giver_chapter_13_summary_and_analysis.pdfIn PDF document text
    • http://nisalufurawe.epizy.com/fosiw.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/uncompensated_care_cost_report.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/zujajat.pdfIn PDF document text
    • http://dalonirutufitad.rf.gd/zavidokimu.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/40551999743.pdfIn PDF document text
    • http://nikonexusopuja.epizy.com/9673178025.pdfIn PDF document text
    • http://tamugaza.rf.gd/wimaperitubi.pdfIn PDF document text
    • http://dazimosanugep.epizy.com/listening_assessment_worksheets.pdfIn PDF document text
    • http://rubuvajaroxe.epizy.com/laser_bluetooth_dongle_driver.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_off0000c4b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B0 5284 bytes
SHA-256: 12677344b328341545ddccf0cbc8cd780879411405eb79ad7c93ac294e660ee0
font_01_sfnt_off0000d698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD698 10456 bytes
SHA-256: d2a588976f28321e917658349268d90cb9d20b9916b85bdaa8af88765bcb9564