Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8db5bb39c2cea18…

MALICIOUS

PDF

72.6 KB Created: 2021-02-20 18:06:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 74e50afa5b597dc2d55c1087e9f5d694 SHA-1: c537626871b1c68589a79d352dfa51aa34e1e1bd SHA-256: d8db5bb39c2cea1827b1aac534802faf4fa0c5e8416db1115e0beddde893ae98
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/wix?keyword=primary+talks+april+2020 PDF link annotation
    • https://cdn.sqhk.co/mujekesire/gi1uThc/dinosaur_wallpaper_peel_and_stick.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367278/normal_5fe307bfec6a2.pdfIn PDF document text
    • http://detonic-romania.website/sneaker_clicker_2_mod_apk_unlimited_money_downloadeg2cr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469106/normal_5ff391a2c6aee.pdfIn PDF document text
    • https://cdn.sqhk.co/rokajoten/Hget5Cz/rocky_mountain_high_music_and_lyrics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386594/normal_5fc76956dbabe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480182/normal_600fd9b8991c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443823/normal_5fda7173bf245.pdfIn PDF document text
    • https://cdn.sqhk.co/satasevubu/hbZ0hie/strategic_human_resource_management_an_international_perspective.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409614/normal_5fd2eabf7f31c.pdfIn PDF document text
    • http://perevod-card2card24.site/regency_theater_van_nuys_showtimes3xyzg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379859/normal_5fedff45452e9.pdfIn PDF document text
    • https://cdn.sqhk.co/sarunasol/FjcjeGF/65884254134.pdfIn PDF document text
    • https://cdn.sqhk.co/fegibowaxus/haV4jfH/motorcycle_wallpaper_hd_1080p_free_download_for_laptop.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
    • https://s3.amazonaws.com/wupiwupiwot/tisabevej.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/fedirigidax.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/kagawuko.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_off0000d489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD489 4860 bytes
SHA-256: fff3641ac6d6c395f8daf51e52c5a84299f3ea124d688ec58bea6b3dc2d58eae
font_01_sfnt_off0000e4fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FA 9940 bytes
SHA-256: baf181b3658b91f37846936ea9fdb4f88d0ffac7d882863eff8bf49a49be432c
font_02_sfnt_off00010703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10703 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c