Malicious PDF — malware analysis report

Static analysis result for SHA-256 3399c18307a9a134…

MALICIOUS

PDF

75.8 KB Created: 2021-02-28 02:03:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 86238afac3f354d91bff2aea296289d7 SHA-1: 2438e16bce0ca44387681b689a62eb3adee17f65 SHA-256: 3399c18307a9a13442e20a539718e7a365537090518ca431dbe4c69af06c8a68
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://dugedepap.ru/award?keyword=software+tester+job+description+canada PDF link annotation
    • https://tigasuzile.weebly.com/uploads/1/3/1/3/131379741/ruwamabuxase.pdfIn PDF document text
    • https://wipemaxo.weebly.com/uploads/1/3/5/3/135345075/sesuben.pdfIn PDF document text
    • https://cdn.sqhk.co/xawobovuji/fkN4Akx/color_wheel_the_artist_s_view_catcher.pdfIn PDF document text
    • https://xasonametig.weebly.com/uploads/1/3/2/3/132303127/zezozigonuvabe-semafo.pdfIn PDF document text
    • https://cdn.sqhk.co/mumesimasozo/hVkhb0I/ghost_sounds_app_download.pdfIn PDF document text
    • https://tavadubamik.weebly.com/uploads/1/3/4/4/134473349/3718443.pdfIn PDF document text
    • https://daxivikulogator.weebly.com/uploads/1/3/4/3/134308382/30eac284d3.pdfIn PDF document text
    • https://sezariserafuf.weebly.com/uploads/1/3/4/6/134673330/liwopegimojova.pdfIn PDF document text
    • http://gonugotez.22web.org/command_line_update_android_sdk.pdfIn PDF document text
    • https://rakevuxex.weebly.com/uploads/1/3/4/0/134040666/1421195.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/QNHiiii/gusuwapokelinuw.pdfIn PDF document text
    • https://nisudine.weebly.com/uploads/1/3/1/4/131454656/537799.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/wewiro/fitbit_alta_setup_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/25541490914.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/spreadsheet_application.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_off0000ea2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2A 5528 bytes
SHA-256: 2482f4566cf915bf8cb0d4eb1c86df487892277fac3c83ed8ee00ce436684908
font_01_sfnt_off0000fd1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD1B 11000 bytes
SHA-256: 808b03bb7f8149fa3713ef2087cffd9057b13c2ad506e795b99df0a6e120f4f3

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