Malicious PDF — malware analysis report

Static analysis result for SHA-256 96cef839c0e31ba9…

MALICIOUS

PDF

89.7 KB Created: 2021-03-02 13:03:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 633ba3e6231842a54daf54713447c895 SHA-1: 14df466ee0f5daa9bb4166d6e957fa34b5b1a4e9 SHA-256: 96cef839c0e31ba9a9466dd5a8c322b3fad38bb1bd5c02da747e8a1e338ef73a
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://gimoguvi.ru/123?utm_term=blue+is+the+warmest+colour+full+movie+watch+online+english+subtitles+123movies PDF link annotation
    • http://mawabadake.22web.org/how_to_prepare_a_care_plan_for_the_elderly.pdfIn PDF document text
    • https://cdn.sqhk.co/vivepovugeli/ieiaIji/mirror_cake_stand.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/hagixjg/80473687758.pdfIn PDF document text
    • https://cdn.sqhk.co/lenawemijixe/ggjihcB/wheel_of_fortune_pc_game_2.pdfIn PDF document text
    • https://cdn.sqhk.co/forinabam/vFjbMja/gavaxumisolasera.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/8ihigjj/polujipujolijuxeraxa.pdfIn PDF document text
    • https://cdn.sqhk.co/rewaloxuruvu/4QnCvks/emoji_whatsapp_sticker_maker_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/lokabawopup/CjfjcHp/78624799901.pdfIn PDF document text
    • https://cdn.sqhk.co/botonerepap/nbOhcia/15982668361.pdfIn PDF document text
    • http://desokore.medianewsonline.com/how_to_prepare_for_aws_cloud_certification.pdfIn PDF document text
    • https://cdn.sqhk.co/vavusiwi/sjeD1I1/fomivilarijobolusaseto.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/jowutoneranemuk/bumifuvaz.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/high_density_foam_sheets_near_me.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/toduvimawifezoxalejagomi.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/31589639832.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/58721205938.pdfIn PDF document text
    • http://katezoluvezile.epizy.com/degrees_of_comparison_worksheets_for_grade_5.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/jusibuvazal.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_off00012004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12004 5984 bytes
SHA-256: 0201141f3362911f31a8348404e459ba8c706a1cd07dc91b5ba99251ec1f0d7e
font_01_sfnt_off00013462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13462 10716 bytes
SHA-256: 4b1052612b22404f87793f56df95dfb62443ffc5f5d6305ea9da82bf88f68334