Malicious PDF — malware analysis report

Static analysis result for SHA-256 f927adc2212bd126…

MALICIOUS

PDF

72.3 KB Created: 2021-02-14 05:46:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 99c19fe687536ac9939dff1e1ee27b5c SHA-1: 95b3b761415c8e57725b074d11ba200e8c08b017 SHA-256: f927adc2212bd126f79ca269d47cdebf86e6b0baf6c2281a81f0eccc890bbee6
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://leonvi.ru/123?utm_term=lego+mindstorms+car PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458144/normal_601a69142111a.pdfIn PDF document text
    • https://cdn.sqhk.co/gewanunu/hhgdylI/v_moda_crossfade_m100.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwoxebu/U1gijft/gems_for_pixel_gun_3d_tips_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389830/normal_5fe1168928e4d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448718/normal_5ffbb72064c02.pdfIn PDF document text
    • https://ruwijupoxotafan.weebly.com/uploads/1/3/0/8/130814308/tagifekiraded-xupor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370055/normal_5feaf70d79281.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/fjg8zqY/clavinova_cvp_701_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379723/normal_5fc8d5507f317.pdfIn PDF document text
    • https://cdn.sqhk.co/lolatonuvesa/Bnibidm/nofibeneninogogojekina.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480582/normal_5ff54eb1238ef.pdfIn PDF document text
    • http://bivozebavi.iblogger.org/alcohol_etilico_al_70.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486354/normal_5fce6f2cc9d67.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lebekuwawelu.epizy.com/39670934249.pdfIn PDF document text
    • http://jejuton.rf.gd/android_tv_box_malaysia_channel.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_off0000db27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB27 5168 bytes
SHA-256: f56597658ee1b033c488a5826b4d6fe4cbcf7c5f91a4347154343b1ef1d4adf7
font_01_sfnt_off0000eca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA9 12048 bytes
SHA-256: 82f5f9c2afdeba266b5c0e60a57cc4a88d151b6b43ea82084049ccf8ac88cff2