Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bfefd7774e81ef0…

MALICIOUS

PDF

114.0 KB Created: 2021-05-13 07:09:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 61f8c2a444f909505f6f24a6c3126e2d SHA-1: 73920ed208f4494d4fd21e101962587ecbab90a8 SHA-256: 2bfefd7774e81ef0994ea1b620e02995d0261958920b1368d26a705a1557c03d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/strik?utm_term=%25C2%25BFcu%25C3%25A1les+son+las+partes+de+una+revista+escolar PDF link annotation
    • https://cdn.sqhk.co/xolovagi/eQjaQgj/89254446983.pdfIn PDF document text
    • http://tuderoba.getenjoyment.net/html_tags_and_attributes_download.pdfIn PDF document text
    • http://fidofawi.medianewsonline.com/test_psicologico_de_colores.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/garmin_vivofit_3_reset_after_battery_replacement.pdfIn PDF document text
    • http://modezewop.mygamesonline.org/medical_terminology_free.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/erQDhf6/darepopot.pdfIn PDF document text
    • https://cdn.sqhk.co/mojupesonon/jjHgfYL/61306573157.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403672/normal_603d51fc33d0c.pdfIn PDF document text
    • https://cdn.sqhk.co/zujubokave/gegiFsn/kontra_k_sirenen_jacke.pdfIn PDF document text
    • http://bixekakazozerol.mywebcommunity.org/87466863753.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374185/normal_604469d2bb48b.pdfIn PDF document text
    • https://cdn.sqhk.co/zavipudajose/yn1gdhe/scary_granny_horror_story_granny_horrific_story.pdfIn PDF document text
    • https://cdn.sqhk.co/sixatowitur/jgshihb/game_stunt_bike_racing_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zitadufafasid.onlinewebshop.net/36245168236.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/bimanual_exam_purpose.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/jabikalobajabitela.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/what_were_the_terms_of_the_treaty_of_paris_of_1783_and_how_did_it_help_establish_the_united_states.pdfIn PDF document text
    • http://wuwedilejom.myartsonline.com/personal_branding.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/bane_chronicles_order.pdfIn PDF document text
    • http://mifedisiso.atwebpages.com/nonaka.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14178 6828 bytes
SHA-256: 1c21daa56a0a60d080e1aabd98296644cb018ab3803b53ecef60e1fb8624309a
font_01_sfnt_off000152c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152C3 5400 bytes
SHA-256: a87c83260dccb84b08d96cdab0e62d1b90e0267eab18371a96b721c02af9d3e3
font_02_sfnt_off000164a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x164A1 4892 bytes
SHA-256: c98299b762ca06a76b7c76ffaafac85e6282ede1b500c1b901794db7c91a41c1
font_03_sfnt_off0001753c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1753C 12444 bytes
SHA-256: 873e079c40ea357080f42453446712186ef4614c2ba96cce95a3b8c78ca234ea
font_04_sfnt_off00019d4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19D4B 17308 bytes
SHA-256: b0094aab2525525249954447b1f099ccac7c5c38aad1bfcd6f2e823811644da4

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