Malicious PDF — malware analysis report

Static analysis result for SHA-256 349660fa4095729f…

MALICIOUS

PDF

69.5 KB Created: 2021-02-13 21:44:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ba3bf6f1604ac3f4a298722d04f053d1 SHA-1: fdf111c25ecae50c8447e05cfdfdaca50aea7c95 SHA-256: 349660fa4095729f8bca0b985f522e708d442dd1218b218768d896a663505f1b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=bike+race+pro+mod+apk+free+download PDF link annotation
    • https://cdn.sqhk.co/lenawemijixe/BNihSif/furniture_mod_1._16._2_minecraft.pdfIn PDF document text
    • https://cdn.sqhk.co/xekutenupi/jjpgehe/17633799648.pdfIn PDF document text
    • http://persequenteamsohbet.com/nefufaxesh5pj0.pdfIn PDF document text
    • https://cdn.sqhk.co/mujawiru/cJd7Z81/sketch_tree_artist_drawing_pad.pdfIn PDF document text
    • http://idealicait.site/sword_art_online_board_game_review91t3l.pdfIn PDF document text
    • https://cdn.sqhk.co/bixatavafut/jdngfto/rocket_racing_igniter_wheels.pdfIn PDF document text
    • http://trastenmyqort.online/ishihara_color_blind_test5nvgh.pdfIn PDF document text
    • http://twitter-center.com/vh1_rupaul_all_starsm1oxh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472182/normal_6010381ea30cd.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/siwixomudit/astrazeneca_email_address_format_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/22247925512.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/arionfx_for_photoshop_free.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/airtel_postpaid_plans_chennai.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/ditakijokajo.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_off0000d0f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F6 5328 bytes
SHA-256: c8bc254e1bf33597c816a61252c12a9f435df8dd02984c8be3f5751f175b06e3
font_01_sfnt_off0000e319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE319 11632 bytes
SHA-256: 08773b4a8feec24b3484654b8eb5baa1c3b025845248b7852f140fd9963fe868