Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f152af468d1da27…

MALICIOUS

PDF

73.3 KB Created: 2021-02-13 10:13:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a4dd6be4b79b09bc7a437d5e9428b077 SHA-1: 9cfc7b187eb6f67d805e11572f99887f56a83149 SHA-256: 3f152af468d1da27cc03b352997a095222cb565b8c86891551ac69140037985c
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://baarspo.ru/wb?keyword=guided%20tours%20rome%20in%20english PDF link annotation
    • https://cdn.sqhk.co/foseziwate/6ijgfhc/pocket_bully_pitbull_for_sale_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/hkijjfa/wefetejifevinefo.pdfIn PDF document text
    • https://cdn.sqhk.co/dejuxafe/mqwYkjg/81648278.pdfIn PDF document text
    • https://cdn.sqhk.co/xafiguzi/jajety8/tovafetikibelinipaf.pdfIn PDF document text
    • https://cdn.sqhk.co/dogatefi/1xCjfFm/dopevuzefedig.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuxopova/Ygfijih/clicker_heroes_calculator_ancient_souls.pdfIn PDF document text
    • https://cdn.sqhk.co/kagaxavog/dN6kajf/bowin.pdfIn PDF document text
    • https://cdn.sqhk.co/bexutavukaro/cia9Uwz/download_game_driving_school_2018_mod_apk_rexdl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ratotepuno.rf.gd/aai_tamil_movie_comedy.pdfIn PDF document text
    • http://jeneviwa.epizy.com/49506185741.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/gawaw.pdfIn PDF document text
    • http://gezewezelatemak.epizy.com/minecraft_server_1._12._0.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/alba_botanica_anti-_acne_sheet_mask.pdfIn PDF document text
    • http://gamalebivufije.rf.gd/fejezopomilatox.pdfIn PDF document text
    • http://tabojiterakan.rf.gd/import_vcf_file_android.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_off0000df38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF38 5060 bytes
SHA-256: add3949ab1ace224e01a89e6b0ae8ec6dc1161a6382ef70c257d31f276269c42
font_01_sfnt_off0000f040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF040 11300 bytes
SHA-256: 3e2692d3b81ae5fcbbc291a6e3072c3e228ede96d5b88b5eeda5e1875460e183