Malicious PDF — malware analysis report

Static analysis result for SHA-256 5143931a7c4d70cb…

MALICIOUS

PDF

77.0 KB Created: 2021-03-08 21:27:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0cc6058f71603d2bb3416db8b9988aea SHA-1: 9be42647105105a8570f096aa9c9c45b0db4ac09 SHA-256: 5143931a7c4d70cb8e1252e8d57fd14016aada865b5736167832f700ea20ea02
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/123?utm_term=auto+call+recorder+iphone+app PDF link annotation
    • http://monubagujizud.mywebcommunity.org/9214911974.pdfIn PDF document text
    • http://copytoshka.ru/ginaxusizipazobjy9ch.pdfIn PDF document text
    • http://xepuxesadara.mypressonline.com/all_american_pressure_canner_for_sale_used.pdfIn PDF document text
    • https://cdn.sqhk.co/leloxoreje/gcmiiMj/klondike_solitaire_free_download_mac_os_x.pdfIn PDF document text
    • https://cdn.sqhk.co/noremixujor/fgeep3b/51952981920.pdfIn PDF document text
    • http://desokore.medianewsonline.com/mamiya_rb67_professional_s_digital_back.pdfIn PDF document text
    • http://giwitap.getenjoyment.net/why_will_my_samsung_s8_not_turn_on.pdfIn PDF document text
    • https://cdn.sqhk.co/suwuwewazaka/ehgVN2B/69447516969.pdfIn PDF document text
    • https://cdn.sqhk.co/dutudovajud/N4QD0gd/sago_mini_boats.pdfIn PDF document text
    • http://barcaporirternet-interbank-pe.com/what_is_the_giver_book_all_aboutchq8i.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/how_to_test_a_oil_pressure_sensor_2000_ford_7.3_diesel.pdfIn PDF document text
    • https://cdn.sqhk.co/jalotenabo/jgezRcV/nerupixalaku.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/woxotopapozokev/24613591070.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0cc5475-2689-40e9-83b0-10afc4eaeb43/jenn_air_downdraft_electric_range_manual.pdfIn PDF document text
    • http://polilofu.onlinewebshop.net/11_22_63_audiobook_length.pdfIn PDF document text
    • http://tulajadulixo.myartsonline.com/tojewax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c083b36d-bc58-4aaf-a71c-b17758518010/ashton_irwin_sister_age.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/75175081217.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_off0000f26d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26D 4972 bytes
SHA-256: afb9f2a1a44c3821ce7baee6ef3af4cc1e31c97d0f6eb9e0d92cd3e2bc267cbc
font_01_sfnt_off0001034e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1034E 10420 bytes
SHA-256: f675db1eaacdd2a9dad83375850111897a88ff78de67f2298670a1bb4e4a295b