Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ae6c4641d31a0f7…

MALICIOUS

PDF

72.3 KB Created: 2021-01-29 09:01:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 73f105663554d06160c6948a86494342 SHA-1: b8a2e07b3315a17eee9548dab8a2af88f3f3761b SHA-256: 9ae6c4641d31a0f701c88736667e2ba7351925c76b675c9ad300a26e189bd149
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=emmy+awards+2019+full+show PDF link annotation
    • https://cdn.sqhk.co/bolomekurufe/XkLhcEI/best_tuner_for_6._7_cummins_mpg.pdfIn PDF document text
    • http://blog-millionaire.buzz/sowujopubuzepafo1ak22.pdfIn PDF document text
    • https://cdn.sqhk.co/puburikob/ykjipt4/alone_sad_quotes_in_marathi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409819/normal_5fe4484f16698.pdfIn PDF document text
    • http://milansit.space/hp_smart_printer_offline_maccpg3r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426260/normal_60028cf83d522.pdfIn PDF document text
    • https://cdn.sqhk.co/xeliwiwogivo/giTkLgc/dbz_battle_of_gods_movie_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jugemito/EgAhigf/89223493832.pdfIn PDF document text
    • https://cdn.sqhk.co/kulukopupiw/jdib0hh/xomebusugufimodevusomas.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvupalib/hhha3xi/shipwrecked_egg_harbor_menu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393197/normal_600f9e24b589d.pdfIn PDF document text
    • http://idealica-itufficiale.website/422913069794ipb.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/icwzzni/large_yellow_apple_calories.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461481/normal_600a59cee187e.pdfIn PDF document text
    • https://cdn.sqhk.co/sifajoxojif/iiORsgj/centipede_arcade_game_with_riser.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dbc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC5 5780 bytes
SHA-256: 1d77959858e869c33dcbe054df66e5ac1c01e1cd1c5f74eef19e90d34c4618eb
font_01_sfnt_off0000ef60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF60 10892 bytes
SHA-256: 2167dee07c16d615462193a5aabad5976eb3e05eb4e73bc6c8ca259f88aaa49f