Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2b156fb39b0268…

MALICIOUS

PDF

72.5 KB Created: 2021-02-22 13:24:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 05b0a28097aab43c19bb2ad9ea1d97fd SHA-1: 5eb9f6ff0e733b098197a6ddf78befcb9e491751 SHA-256: df2b156fb39b0268037e3a02c68cdfc18b6d0c4a8202fe886bd93adba8680db3
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://baarspo.ru/wix?keyword=que+significa+pnf+en+una+carrera PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385235/normal_602b4c6b378d1.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/hhxbJDs/woodland_animals_coloring_pages_free.pdfIn PDF document text
    • http://fresh-ita.fun/2005_form_b_ap_literature_sample_essaysgwsbt.pdfIn PDF document text
    • http://cleaner-inn.club/wajafejukuxezevugirizym09.pdfIn PDF document text
    • https://cdn.sqhk.co/wanuvudeb/KWFgjMP/zibafoxuwikizotovuzuwex.pdfIn PDF document text
    • http://organicsss.space/23649055818j5x7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388819/normal_602b464317e17.pdfIn PDF document text
    • http://mmmuuuue.space/78712099041ppql0.pdfIn PDF document text
    • https://cdn.sqhk.co/mixasuwekov/hogdQ7x/79343447467.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490515/normal_5fe9382cb30bc.pdfIn PDF document text
    • https://cdn.sqhk.co/devepogisog/ijhaDRm/s_word_wallpaper.pdfIn PDF document text
    • http://nuveclovet.xyz/41593872025427hv.pdfIn PDF document text
    • http://xtreme-sport.ru/lemorah8i8v.pdfIn PDF document text
    • http://seplafond.xyz/83620208151picqg.pdfIn PDF document text
    • http://item-get.top/139745252561uyqr.pdfIn PDF document text
    • http://lnstagramverifycentre.com/8181910836314zsu.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/bulozor/sms_backup_restore_iphone_to_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/sojidelenedab.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/kolubomanopezimof.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/lalonde_report_vs_ottawa_charter.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_off0000dbf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF7 5212 bytes
SHA-256: 2d5bb63b23338dc7ab6f0a1dac9b1df367c018aeee549099de615882c4ac59a9
font_01_sfnt_off0000edcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCB 11452 bytes
SHA-256: 78bce9c5831bf9707dd8fd31513b8b64d18fd35c72deece1b5bb8b678befc048