Malicious PDF — malware analysis report

Static analysis result for SHA-256 318dacd073339d6c…

MALICIOUS

PDF

69.5 KB Created: 2021-02-22 09:30:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 185753dd022e4b6979eab4ca3856be31 SHA-1: 49912822e1912568220427319d2cb58610c8e843 SHA-256: 318dacd073339d6cb5e4b8c0f9d6aeb5bdfd116bcf33cf01463f99ea425e674f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=skyrim+argonian+mods+xbox+one PDF link annotation
    • https://cdn.sqhk.co/bipukawu/ia7fLic/major_mayhem_2_hack_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/molavagew/hgdvjji/yellow_finch_southern_california.pdfIn PDF document text
    • https://cdn.sqhk.co/pixefavenar/e2NPMkP/robotics_companies_to_invest_in_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368951/normal_5fdd8bfaa25fd.pdfIn PDF document text
    • https://cdn.sqhk.co/vogoxaginoje/bhaia4r/24220275375.pdfIn PDF document text
    • http://findattime.com/dish_hopper_with_sling_keeps_rebootingioaso.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://biborufa.epizy.com/creep_movie_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/anaconda_part_2_tamil_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/zudumofolag.pdfIn PDF document text
    • http://sotatelovutegep.epizy.com/asphalt_8_offline_game.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/85638135943.pdfIn PDF document text
    • http://ligexaxo.epizy.com/92257929112.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6C2 5296 bytes
SHA-256: 90a566fb229290dc6986030628af62ac1fd624263682e6bfc98d8f5caddc07f3
font_01_sfnt_off0000d89d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89D 10156 bytes
SHA-256: 5f70d418399357f57e6a11bfdc8138a882b108aa75c606f26626ef444d062f73
font_02_sfnt_off0000fb58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB58 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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