Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea790ba17e2a3199…

MALICIOUS

PDF

72.9 KB Created: 2021-02-11 22:46:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a89419d3a66d6cead300806f9d992f70 SHA-1: 7bfe5ec984c448d5a860cfa0ca705d4a0be13b34 SHA-256: ea790ba17e2a3199f4ec6d9b908d4a54446e81d412d4d2c08c2a322f62b87178
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://jacksth.ru/wix?keyword=1996+tigershark+jet+ski+manual PDF link annotation
    • https://cdn.sqhk.co/wanadujogo/eiejfia/kefoliborurid.pdfIn PDF document text
    • https://cdn.sqhk.co/dujagazatad/heGheD2/7467355896.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367635/normal_5fc81a5eb60fd.pdfIn PDF document text
    • https://cdn.sqhk.co/fovipobex/fjcia0i/cerebral_blood_flow_in_late-_life_depression.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489587/normal_5fdf8c9590a1e.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/gXXdhd7/74427434105.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484804/normal_601a23396ee88.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491439/normal_5ff22dab4e4b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474989/normal_6024588d703f1.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/tomaxade/best_weather_radar_app_android_australia.pdfIn PDF document text
    • http://bovumemudij.rf.gd/zapofifu.pdfIn PDF document text
    • http://kugibujupedo.rf.gd/90544983160.pdfIn PDF document text
    • http://bonizeza.epizy.com/agree_disagree_phrases.pdfIn PDF document text
    • http://memajale.epizy.com/62635013965.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/office_online_cv_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/penareke.pdfIn PDF document text
    • https://s3.amazonaws.com/wanalovum/nutricion_parenteral_pediatria.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/49645503635.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_off0000d62e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD62E 5504 bytes
SHA-256: 749f3515012b049ec7ec6c7326aa84da6170bd08f1a3d23da448a1c0c03508ce
font_01_sfnt_off0000e8c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C4 14588 bytes
SHA-256: 7c2d18b1776fd305556f90ddc781f95a966bede3687f4eb767f0d487d9d20ef4