Malicious PDF — malware analysis report

Static analysis result for SHA-256 214f213c255dbc6a…

MALICIOUS

PDF

76.8 KB Created: 2021-02-27 22:35:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: bf1e8354164724ca36fcde43b35f916b SHA-1: 3e412e63ceb6964e3a9e612c53cd0389c486871b SHA-256: 214f213c255dbc6aee54e9d440a0054a217e9b0f2e25b8b913f6c392806e6e09
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with one specifically pointing to a domain that appears to be a phishing lure related to a 'coast guard academy medical exam'. The PDF's structure and the presence of numerous links to disposable hosting services suggest a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent.

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://resalured.ru/award?keyword=coast+guard+academy+medical+exam PDF link annotation
    • http://nenonazuf.scienceontheweb.net/86374345842.pdfIn PDF document text
    • https://cdn.sqhk.co/bapulofuw/jhdhdhF/download_game_cartoon_defense_4_mod_apk_android.pdfIn PDF document text
    • https://gogesatita.weebly.com/uploads/1/3/4/3/134321397/tifipefulunab.pdfIn PDF document text
    • http://nowofuguvinidaw.iblogger.org/bhilwara_mil_gayi_re_video_song.pdfIn PDF document text
    • http://vuwadezizubem.22web.org/software_alcohol_120_free.pdfIn PDF document text
    • https://cdn.sqhk.co/badaxiloru/jcjd3ML/duvomakudiwufukatin.pdfIn PDF document text
    • http://ketrovk.xyz/the_dead_among_usc2lhl.pdfIn PDF document text
    • http://mafujewulig.66ghz.com/wirodopelopiwo.pdfIn PDF document text
    • http://fukuzowi.sportsontheweb.net/attack_on_titan_season_4_trailer_english_subbed.pdfIn PDF document text
    • http://bobejitamatu.iblogger.org/afrikaans_translator_app_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/hg22vhf/futovilag.pdfIn PDF document text
    • https://cdn.sqhk.co/ropobemuma/TGvjfnf/cookie_clicker_auto_clicker_ios.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nutimuratibuzur.epizy.com/50759704015.pdfIn PDF document text
    • http://rofeluw.epizy.com/ryle_descartes_myth.pdfIn PDF document text
    • http://tozuduxaxikagik.rf.gd/jaxebumujekelutekujetage.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/movikavibasug.pdfIn PDF document text
    • http://tuvugerij.rf.gd/access_control_in_information_security_ppt.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE258 5228 bytes
SHA-256: 6cab10bf4fb01318372c483ed9290270d732a61c5ec2014ce6cdca427453ae48
font_01_sfnt_off0000f434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF434 10532 bytes
SHA-256: b0a01466616357bab834b036258a91cfdb7f9597e32affd7b865ce6f5f980a4f
font_02_sfnt_off00011839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11839 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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