Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd524645faf480b…

MALICIOUS

PDF

71.0 KB Created: 2021-02-26 16:34:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5e6bfaa877bfc07c4527e150e7159b7b SHA-1: 2608e957842bc95486421c4da8905477e824f80d SHA-256: ccd524645faf480bf28865da14920b7aeea6285b821b06cc15f1a6b7ca9f6457
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/award?keyword=dan+schutte+mass+of+christ+the+savior+sheet+music PDF link annotation
    • https://cdn.sqhk.co/veletafi/jhN5oih/tedifuzatiwejololimig.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/gfjaRih/cataclysm_dark_days_ahead_undead_tileset.pdfIn PDF document text
    • https://cdn.sqhk.co/sujubowip/hbqgiRb/world_of_warcraft_game_time_card.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvazuginu/yMxMwhe/8384806074.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/lasko_ceramic_tower_heater_vs_motion_heat_plus.pdfIn PDF document text
    • http://tusiteguluvora.getenjoyment.net/81283621007.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422622/normal_5ff016d0eaf71.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/potamotaz/bernina_artlink_8.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/86701387742.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/rikupuvimobemit.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/31399182336.pdfIn PDF document text
    • http://belibivizonojo.myartsonline.com/how_to_request_a_letter_of_recommendation_from_principal.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/autocad_architecture_software.pdfIn PDF document text
    • http://wugujub.onlinewebshop.net/kapanutib.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/bobadexaxazakufapajumenu.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/pewuzafixuxuwerigodes.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_off0000c9ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9CA 5148 bytes
SHA-256: f74a2acfa6fc837e61b93aded833e820430ead65d11c5a6a7540845a5dce9b29
font_01_sfnt_off0000db32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB32 15656 bytes
SHA-256: 9823620e8fe9b0ee2d986fc4cc89166e87b1f9feef6f1969138b9aca9452cba7