Malicious PDF — malware analysis report

Static analysis result for SHA-256 23087b6afd177a38…

MALICIOUS

PDF

72.0 KB Created: 2021-02-26 22:41:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6b29484ba3a26d5cf9845125f9875a4f SHA-1: 184bd1d440fcc2b2f32ed60321bfc9a3fc649bf8 SHA-256: 23087b6afd177a38b75d43ccbff5b9f5e736013f6bd921f32b5fd030d47bcba9
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://nipisod.ru/wix?keyword=financial+algebra+chapter+4+test+answers PDF link annotation
    • http://viniveba.mywebcommunity.org/22791480036.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369923/normal_5fff264ea1b69.pdfIn PDF document text
    • http://kiruvoxexuk.iblogger.org/engine_shop_manual_cfm56.pdfIn PDF document text
    • http://natlegend.space/marketing_management_philosophies_in_hindikxi1q.pdfIn PDF document text
    • http://ridunculus.com/razoruxowajuwowofugufubr82r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489061/normal_5fed4484bb058.pdfIn PDF document text
    • http://beviluxenumiliv.mywebcommunity.org/fitafaxi.pdfIn PDF document text
    • http://sollabs.xyz/how_to_repair_cuckoo_clock_chaink1y0o.pdfIn PDF document text
    • http://rineset.xyz/wulexitalaroka5tzsr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vapasiwivomod.epizy.com/chaar_sahibzaade_2_punjabi_movie.pdfIn PDF document text
    • http://robowogutalopet.epizy.com/xiaomi_mi_a2_lite_android_10.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/birthday_cakes_photos_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/alto_odyssey_for_pc.pdfIn PDF document text
    • http://favisosemetidid.rf.gd/62800841269.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/exit_wounds_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/facebook_video_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/css_form_align_input_boxes.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_off0000dbba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBA 5468 bytes
SHA-256: 046a753ef0246e4310e553a5855c3dbdc5e39f9af6fbc300572838ec452cc5be
font_01_sfnt_off0000ee66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE66 10792 bytes
SHA-256: f038e11f6d75ac846306cb17727f4404083ac37c4d78cf50f51651692a2ad107