Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4d495f717a0b4d…

MALICIOUS

PDF

69.4 KB Created: 2021-02-21 05:03:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6cc3abcff9e68b85c9405ed07ebc8992 SHA-1: 44bd805dd1744d347564117609a13520b6b5f8c6 SHA-256: fe4d495f717a0b4d802b9428eb0778bca348362d9a6d8283b8ff351e6ec87b68
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://leonvi.ru/aws?utm_term=circuit+of+culture+model PDF link annotation
    • http://dle-tpl.site/jirawipekizapevumage6u2hj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416495/normal_601d93b1589a5.pdfIn PDF document text
    • http://899themes-demo.ru/educacion_prehispanica_en_mexicojqu4m.pdfIn PDF document text
    • https://cdn.sqhk.co/kilatelazobe/Xhfgeji/dragon_bubble_shooter_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384469/normal_5fdb9d50b7829.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzinipaz/h32ijS5/minecraft_pixelmon_lucky_block_1._12_2_download.pdfIn PDF document text
    • http://elinekici.online/how_long_does_red_cross_cpr_certification_takezmknr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408476/normal_5ff5d84c6844a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446016/normal_602a735a639a8.pdfIn PDF document text
    • https://cdn.sqhk.co/dedizozife/jiHZugj/pakistan_army_anti_aircraft_missiles.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/fefurorobumi/witudaxewavunubojitu.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/47237817722.pdfIn PDF document text
    • http://suxikikafib.epizy.com/lejuweguzix.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/mystic_messenger_text_guide_707.pdfIn PDF document text
    • http://takugiwem.rf.gd/bibliography_format_apa_6th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/xumezov.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/65707654940.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/dodovisafarofavixujasi.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_off0000d56d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD56D 4684 bytes
SHA-256: 1b7399ff6c5f170d4e64325d070a7b3d973fb3ce485cf43d2cac18d9d1867ba3
font_01_sfnt_off0000e540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE540 10440 bytes
SHA-256: 596791f251e9b9a3c8f018db11743c431135f742cc517aca53fc4f79965ab578