Malicious PDF — malware analysis report

Static analysis result for SHA-256 24da8f48d03c5d4d…

MALICIOUS

PDF

71.0 KB Created: 2021-03-01 11:19:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0e5f009e06045365e2f187da3ea5deca SHA-1: 997ad5e7e704d5d048230f9be863a6addde61b75 SHA-256: 24da8f48d03c5d4d0c1a81c6a7cc44ad2d5ca7d7de4023e947a5d38461e5c99a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://fokemale.ru/wix?keyword=confidence+interval+worksheet+section+9.1+answers PDF link annotation
    • https://vofovolovun.weebly.com/uploads/1/3/1/4/131483423/poxelefutuduvaw-rabejama-toxebu.pdfIn PDF document text
    • https://liwujozixo.weebly.com/uploads/1/3/4/4/134497145/2643290.pdfIn PDF document text
    • https://cdn.sqhk.co/ramawuvade/hgpaheP/we_commands_english.pdfIn PDF document text
    • https://vuligezu.weebly.com/uploads/1/3/5/3/135391643/9977795.pdfIn PDF document text
    • https://rekinijibir.weebly.com/uploads/1/3/2/3/132302710/3958286.pdfIn PDF document text
    • https://cdn.sqhk.co/jabuvilir/dBHNphc/3d_printer_laser_cutting.pdfIn PDF document text
    • http://kekukuxowan.22web.org/56653462753.pdfIn PDF document text
    • https://tirepululavapiw.weebly.com/uploads/1/3/4/5/134576363/jezure.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzezufe/TGdDvG0/music_ideas_for_kindergarten.pdfIn PDF document text
    • https://gojupisot.weebly.com/uploads/1/3/4/0/134016698/wedudedaliz-sabigo-zepexorazo.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/ronatiduzoxij/correa_injury_report.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/sheridan_500_thread_count_sheets_review.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/42741468805.pdfIn PDF document text
    • http://rupewilalefapok.rf.gd/kafaxiwaxilijeked.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/spiderman_birthday_invitations_templates_free.pdfIn PDF document text
    • http://simupudakeg.rf.gd/can_alexa_control_bose_soundbar.pdfIn PDF document text
    • http://gifonuva.epizy.com/indivisible_characters_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/cucumber_jvm_report_plugin.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/xebesetiwopuk.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/25965544682.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_off0000d93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD93B 5468 bytes
SHA-256: 63620d6f5438c99aafbc8afabd353ee3805c400dac46f207e1b87c560e22abd9
font_01_sfnt_off0000ebeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBEB 10096 bytes
SHA-256: 6274e1c92c1a233a96ea53f4fb12ee2a0fc4bed30af6a8599f046ab51f5d3783

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