Malicious PDF — malware analysis report

Static analysis result for SHA-256 97186727203593b3…

MALICIOUS

PDF

69.6 KB Created: 2021-02-14 04:26:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2fccb03e698c7b06f05d8af3788dcad2 SHA-1: 30f175ebdaf76a274e62400f24654465103a2e39 SHA-256: 97186727203593b34dfafee01efc7ceef7a7a279f846874630b99f14fd717c1b
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/wix?keyword=teaching+philosophy+on+discipline PDF link annotation
    • https://cdn.sqhk.co/perikowep/3BPjhaQ/bavikipatubexitobuxerez.pdfIn PDF document text
    • https://xekariwunaju.weebly.com/uploads/1/3/1/0/131070431/xojesizotuwifiz.pdfIn PDF document text
    • https://cdn.sqhk.co/reserujaj/gTjdgd9/pobinivumojojebejajuw.pdfIn PDF document text
    • https://cdn.sqhk.co/mukibusu/bEhiN2l/45113305754.pdfIn PDF document text
    • https://cdn.sqhk.co/mojesoje/aidhfhg/buvonovugipibatumuvujez.pdfIn PDF document text
    • https://cdn.sqhk.co/vawapisoxe/hfX9jae/lonaligozewedifawo.pdfIn PDF document text
    • https://tugojomabam.weebly.com/uploads/1/3/4/5/134588125/6084321.pdfIn PDF document text
    • https://cdn.sqhk.co/malasexek/h4iijf7/16372286591.pdfIn PDF document text
    • https://cdn.sqhk.co/wefekoferu/RAgc628/15325540159.pdfIn PDF document text
    • https://nimosawi.weebly.com/uploads/1/3/5/9/135982357/2156757.pdfIn PDF document text
    • https://cdn.sqhk.co/kufiremikaf/feba9jj/38036826391.pdfIn PDF document text
    • https://cdn.sqhk.co/wabasenenem/iajajhs/drift_rider_hack_apk.pdfIn PDF document text
    • https://kumobavubisu.weebly.com/uploads/1/3/0/7/130775432/famajefo.pdfIn PDF document text
    • https://cdn.sqhk.co/laruxibut/ejjeFjb/zombieland_maps_and_zombie_skin_for_minecraft_pe.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/xupizewuxere/factor_polynomials_by_grouping_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/wuxasipa.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/90329396535.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/johann_pachelbel_canon_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rirusozo/38055735025.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/gosobowidononodot.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/audition_mobile_th_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/88530182426.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_off0000d431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD431 5288 bytes
SHA-256: 53df34f9b02581197b3daf722ba1e10e995379f6f63d2b176e3f15754ccff4ef
font_01_sfnt_off0000e634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE634 9636 bytes
SHA-256: 9cb59c3ea3b58aa1be2165e0377acd6deca103d5ff07e802d9f7f6db27843b9c

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