Malicious PDF — malware analysis report

Static analysis result for SHA-256 02b49213167a8bbd…

MALICIOUS

PDF

68.2 KB Created: 2021-01-27 08:05:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: d30de3b7dbb1c60b98750be8f32bfa86 SHA-1: 0d6105e51e61826ebb31ea5bf937556999ac4bdb SHA-256: 02b49213167a8bbde38486c49a54289b9018e782ea149bab9092208ebfe7e338
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=dot%20connect%20free%20make%20flows In PDF document text
    • https://static.s123-cdn-static.com/uploads/4418987/normal_5ff5d04637dea.pdfIn PDF document text
    • http://shop-onlinediscount.xyz/fios_tv_one_mini_setup_wifibrmsh.pdfIn PDF document text
    • https://cdn.sqhk.co/jegamaxegev/5Y1qvaa/is_64_bit_faster_than_32_win_7.pdfIn PDF document text
    • https://cdn.sqhk.co/wefekoferu/ib0idrO/78971873211.pdfIn PDF document text
    • http://xujilutobidiko.iblogger.org/platformio_libraries_location.pdfIn PDF document text
    • https://cdn.sqhk.co/balemarize/Uiejcok/1478921141.pdfIn PDF document text
    • https://cdn.sqhk.co/xedaberetaj/jbojeib/advanced_space_flight_apk_mod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://batogegimuwew.rf.gd/crickets_chirping_sound_effect.pdfIn PDF document text
    • http://jedalavupu.epizy.com/solving_equations_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/36046607236.pdfIn PDF document text
    • http://gebutetivifupa.epizy.com/drosophila_population_genetics_worksheet.pdfIn PDF document text
    • http://xesidif.epizy.com/14627638607.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/tv_live_free_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/jofutoxiwe.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/judgement_batting_center_guide.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_off0000cdab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDAB 5180 bytes
SHA-256: ef293dc26d18e64cab303d02ed3ff17c90946427564755d02109abc0dadd15f8
font_01_sfnt_off0000df51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF51 10784 bytes
SHA-256: 496e977deae4e3b6456404bca659b9e9216e7802570d90a9de8bfd57c5932b71