Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6fb1a6fd4d5f331…

MALICIOUS

PDF

72.4 KB Created: 2021-03-09 02:17:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: c41ecf1715dce5ff202452162f733486 SHA-1: a6b41ee3f0089886e8c7de92b4715aca4f5dd5d1 SHA-256: d6fb1a6fd4d5f331ac71488d8e83c3cb1eb238f09c70b1740b9a1edc27b14e25
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://mezovuduw.ru/award?keyword=electroencephalography+and+clinical+neurophysiology+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4464874/normal_5ff230bebdb7c.pdfIn PDF document text
    • http://copyright-notice-ig.com/how_to_download_gta_v_for_free_on_playstation_4t0e7g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451225/normal_601c878c582a1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464302/normal_5ff7df1eb589b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449775/normal_603cace3ba5c9.pdfIn PDF document text
    • http://erethiztzj.space/27913966344oh4o9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414156/normal_5ff00a4624383.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404964/normal_603638e43b037.pdfIn PDF document text
    • http://rankingcoach-seo.com/do_you_have_to_read_jane_austen_books_in_orderlmzyp.pdfIn PDF document text
    • http://kevufeduwatawos.mypressonline.com/jilawurupoxesugolu.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/fujitsu_halcyon_dc_inverter_reset.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423136/normal_600e05dc8e49d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374704/normal_60160bb83ebb2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388814/normal_5ffa85d3628b9.pdfIn PDF document text
    • https://cdn.sqhk.co/mugegiduveb/ggf7Ngd/here_we_go_again_lyrics_dolly_parton.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417314/normal_5fcd3a3c858c4.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/hhjajhL/25662531822.pdfIn PDF document text
    • https://cdn.sqhk.co/kawiwitifa/nhfxhds/learn_advanced_javascript_online_free.pdfIn PDF document text
    • http://idealsit.fun/damavev6jf9.pdfIn PDF document text
    • http://jepisafidezegun.scienceontheweb.net/80049191148.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://supuwevul.atwebpages.com/vepepazukemig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ebffc85-ff2e-4531-8f36-33e82f42f943/zibimezekefotekis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/193b5d4d-772a-464d-80ff-97f503f45305/85786929960.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db5694c6-3de6-43a9-ac99-a8ffc447e176/xurikozibobamowe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efb0e88a-4f44-4845-8e08-90a19acf11b5/dakapekezinojaxerizaxu.pdfIn PDF document text
    • http://tifavamifikas.myartsonline.com/mary_poppins_quotes_imdb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79ed914e-0ece-465f-a494-5b50b4ee8c83/99699392943.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE44 5476 bytes
SHA-256: 00ba1511f4b338184c927d8ba83461714cbf76916a3308f8761eca0efa731756
font_01_sfnt_off0000f0e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E9 10232 bytes
SHA-256: faa1625312436d7f326cacbfd401b45767bba11fbdd8dc1dbbf867e4d0ac2108

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