Malicious PDF — malware analysis report

Static analysis result for SHA-256 94e52ddcfa827759…

MALICIOUS

PDF

68.9 KB Created: 2021-02-27 12:36:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a4210ed9900af9d7fcde6a7d50dab5ce SHA-1: 7f7bdf269cff3a07b396256d6ff1a46275eb04cc SHA-256: 94e52ddcfa827759219eadba4637be2ff358ec2de6ecbbf5308647881d0fe9fa
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://fokemale.ru/award?keyword=samsung+hm1350+manual+pdf PDF link annotation
    • http://abwaab.su/model_3_price_drop_2020wyx0y.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445532/normal_5fe0be2b41d7d.pdfIn PDF document text
    • https://cdn.sqhk.co/lirebirab/geNoRbs/wivofulutuzitaxige.pdfIn PDF document text
    • http://tuxesimufimiti.mypressonline.com/how_do_you_clean_a_hoover_dual_power_max_carpet_washer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422390/normal_600fc90441726.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367017/normal_5fd9067e9234f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451353/normal_60126a3a17a54.pdfIn PDF document text
    • http://kekijojovif.sportsontheweb.net/satuzajeneretud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384145/normal_60021e2ea412e.pdfIn PDF document text
    • http://lemakomude.sportsontheweb.net/narasimha_karumanchi_data_structures_java.pdfIn PDF document text
    • http://kesuvajeb.scienceontheweb.net/flight_of_the_bumblebee_sheet_music_clarinet.pdfIn PDF document text
    • http://hookup673.site/answer_comment_ca_va_frenchzqhic.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/muzotevutam.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gozenabuzixi.onlinewebshop.net/place_value_worksheets_for_grade_5.pdfIn PDF document text
    • http://kivozusemu.atwebpages.com/what_is_a_paragraph_proof.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_off0000d142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD142 5944 bytes
SHA-256: 2e455609dea0dd1c46426a07973be58a4b21e9ccdc64610714aba4cc6c0b3fdb
font_01_sfnt_off0000e562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE562 9672 bytes
SHA-256: 6d3055016d3a691eb0d4b03bb392224cd86cde21ffddabbfb67ad99e8140354f