Malicious PDF — malware analysis report

Static analysis result for SHA-256 18dcea8f0ec61f18…

MALICIOUS

PDF

69.2 KB Created: 2021-02-28 20:24:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6f9e70a427ea3066188a3f1e85f14201 SHA-1: e108b532643598da7e56121b0a2a48ae4d7cd27d SHA-256: 18dcea8f0ec61f18b7fc604b0ace6b6b650e8b960904102791b948dd94a534c9
126 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
  • 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://dugedepap.ru/award?keyword=the+pigman+audiobook+chapter+6 PDF link annotation
    • http://lotibamuzuti.scienceontheweb.net/samsung_c480fw_install_toner_error.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478655/normal_5fdbd468542be.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460473/normal_5fe46d38bc0f2.pdfIn PDF document text
    • https://cdn.sqhk.co/gunonutib/gghjggI/fixidajig.pdfIn PDF document text
    • https://cdn.sqhk.co/wuxaguzifep/jdH8qih/is_the_new_york_times_crossword_app_free.pdfIn PDF document text
    • https://cdn.sqhk.co/xotabuti/fJKvhc4/project_management_methodologies_agile.pdfIn PDF document text
    • https://cdn.sqhk.co/botuvawezej/thaxgj0/i_will_stick_with_you_quotes.pdfIn PDF document text
    • http://fejavodexata.getenjoyment.net/managed_wordpress_vs_hosting_godaddy.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxisilogok/SAWa8Q9/dragon_quest_9_ign_review.pdfIn PDF document text
    • http://suzamajotibe.mywebcommunity.org/juzajumifevevovu.pdfIn PDF document text
    • https://cdn.sqhk.co/mujowofapubi/gytfPjj/52194914318.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461205/normal_60152a2eae183.pdfIn PDF document text
    • https://cdn.sqhk.co/vusopukov/ijjh7ic/zolefawolirufovofifefida.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/historia_de_una_escalera_characters.pdfIn PDF document text
    • http://vitofemegawe.getenjoyment.net/11632799567.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://litorow.myartsonline.com/55610112146.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_off0000d14d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD14D 5584 bytes
SHA-256: 81bbfb35301a09b5ccd7720fc1bcc31ab0db249004a3a935ef85a016cde89212
font_01_sfnt_off0000e41a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41A 10492 bytes
SHA-256: c65c3e9219ad027cae00db03b90f78fc02bb1ed3861ba2eac3f213feeddc44bd