Malicious PDF — malware analysis report

Static analysis result for SHA-256 3127318e6aa0c855…

MALICIOUS

PDF

72.7 KB Created: 2021-02-26 07:40:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f8cdcdf534842cc8627268b4fe6696ba SHA-1: f4ebb606c13864d31bf585df8146affb9136a552 SHA-256: 3127318e6aa0c855284d2fb87f18717486a0fdb82df4a82ff52f3d0125e62891
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://seumenha.ru/wix?keyword=buy+textbook+solution+manuals PDF link annotation
    • http://kelnoteres.xyz/take_and_receive_composerroepf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406809/normal_6001f2a0d6d01.pdfIn PDF document text
    • http://thestablestl.com/farmer_boy_ag2bw0u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381730/normal_5ff4ec2ce2b2e.pdfIn PDF document text
    • http://begdas.space/canon_mp190_printer_driver_windows_10zjstd.pdfIn PDF document text
    • https://cdn.sqhk.co/laratakidev/ieidtvJ/nukikubegew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494433/normal_602c829e9a02b.pdfIn PDF document text
    • http://zaxevef.getenjoyment.net/44047852022.pdfIn PDF document text
    • http://yoganchik.space/841210557611maa4.pdfIn PDF document text
    • https://cdn.sqhk.co/loxowopiv/Sjii8hg/xumepanemijuriwaku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500678/normal_600d53e10de70.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495855/normal_5fcd74c477c9c.pdfIn PDF document text
    • http://idealica-ufficialeitalia.website/varistor_10k471_datasheetclqp0.pdfIn PDF document text
    • http://obsluzhivanie-kompyuterov.moscow/how_to_program_my_universal_rca_remote_to_my_tvxc0pj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388421/normal_5fd310f86b1a0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pikubub.onlinewebshop.net/citizen_navihawk_watch_instructions.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/rilojanil.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_off0000df7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7D 5160 bytes
SHA-256: 4f6f958be5a49ab663a70d524df1346040bce97b84e980774cb82688286cfc03
font_01_sfnt_off0000f109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF109 10628 bytes
SHA-256: f69de6d16d74894d9fc2768b57d2f60f0affb851ae1191e657287e44849c74b0