Malicious PDF — malware analysis report

Static analysis result for SHA-256 6392deeacbbe9816…

MALICIOUS

PDF

78.6 KB Created: 2021-02-17 21:10:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3a86b0b4d04a517906adcc18e8976f41 SHA-1: 5ce18fa39a60118fa90548076e0d8678e0a5fef9 SHA-256: 6392deeacbbe9816bbd832de627135c04fd1bc3da5f1649b2b0153eec3c2273a
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://jottigo.ru/wb?keyword=how%20long%20is%20harry%20potter%206%20book PDF link annotation
    • https://cdn.sqhk.co/rujosupatebu/egejbgd/xudosugazexavoxajoz.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/hBhdjf9/dudevixivusuf.pdfIn PDF document text
    • https://cdn.sqhk.co/gizukakom/hc1Jhhu/jelly_shift_game_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481156/normal_5ff7c378e101f.pdfIn PDF document text
    • https://cdn.sqhk.co/wadusazilox/ibU6Kgh/fallout_shelter_mr_handy_not_collecting_caps.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414873/normal_5fe8428c16506.pdfIn PDF document text
    • https://cdn.sqhk.co/gawagunikuw/8qv05wh/madazidojomipivugexov.pdfIn PDF document text
    • https://cdn.sqhk.co/xenivoronizu/niiwKid/jojopamujobutotek.pdfIn PDF document text
    • https://cdn.sqhk.co/towinomer/VijeFDY/cafe_racer_bike_seat_price_in_bangladesh.pdfIn PDF document text
    • https://cdn.sqhk.co/nonuripot/fialBgc/51850819406.pdfIn PDF document text
    • https://cdn.sqhk.co/simosukolevo/iiaheGq/ivan_boesky_la_jolla_house.pdfIn PDF document text
    • https://cdn.sqhk.co/bipokagiti/g0hcjb0/knight_joust_idle_tycoon.pdfIn PDF document text
    • https://cdn.sqhk.co/nadipozow/g3hfibz/acrylic_nail_designs_coffin_short.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/zarevizebi/school_guide_publications.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/67414338169.pdfIn PDF document text
    • https://s3.amazonaws.com/moduluzuxikari/cydown_deb_file.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/85552884284.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/bengali_child_video_songs_free.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_off0000f7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F2 5596 bytes
SHA-256: 2d5bacd443c45cbdefd10fc69942d82a1a311af04b06d81ac0d89cb1a31f4bf0
font_01_sfnt_off00010b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B08 10080 bytes
SHA-256: f6cb52e39e102950d20d8252861b3487c910a98f33daf8b3ceaa650fbfcf2372