Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc0aa8a15a989875…

MALICIOUS

PDF

71.1 KB Created: 2021-03-02 20:44:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 686ee0fb6ffa8ec5096293b27ef26760 SHA-1: cde2d6b12915894a84a39b8b2e62e721a99b53b4 SHA-256: cc0aa8a15a989875780dcfda2e10bef770268da1e5624a4bb814976c4838fff1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ponafet.ru/award?keyword=madame+butterfly+restaurant+savannah+ga PDF link annotation
    • https://wojulifurezusek.weebly.com/uploads/1/3/1/4/131438898/60915.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460966/normal_6004b83e03704.pdfIn PDF document text
    • https://cdn.sqhk.co/wuxobilan/cjajaDP/vowedabos.pdfIn PDF document text
    • https://cdn.sqhk.co/tekonunise/sZ9ig8m/best_sculpture_artist_in_the_world.pdfIn PDF document text
    • http://bugosegu.scienceontheweb.net/what_are_the_tokyo_ghoul_series_in_order.pdfIn PDF document text
    • http://nosilekexiwot.mywebcommunity.org/97180309640.pdfIn PDF document text
    • https://gunobome.weebly.com/uploads/1/3/1/3/131398345/c0262.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/jaKvRgd/47993331686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446511/normal_6013bbe8a83e8.pdfIn PDF document text
    • https://cdn.sqhk.co/bojowagawire/1hgdjfc/business_analysis_certification_for_beginners.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376105/normal_5fdec469332b4.pdfIn PDF document text
    • http://itactical.xyz/retro_pac_runner_the_labyrinth_game_downloadwh1u7.pdfIn PDF document text
    • http://wotaxatumumodok.sportsontheweb.net/what_does_the_blue_wristband_mean.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/balutuvovejuwije.pdfIn PDF document text
    • http://wipunemobak.mygamesonline.org/how_to_install_autodesk_autocad_2020.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/jopomodilamego/male_nurse_white_uniform_designs.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/29001586924.pdfIn PDF document text
    • http://ralirajuz.atwebpages.com/15157886625.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_off0000d8e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E4 5628 bytes
SHA-256: 329107bfa3f2938ff14e33c14b2cfebc0da9f1fa28b66852e6189018a7e4eed8
font_01_sfnt_off0000ebf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF8 10412 bytes
SHA-256: ccc92643fa46c60d01b6798e6d5c96bae8e5b15b169bc8d6dc607cf3a8365b38

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