Malicious PDF — malware analysis report

Static analysis result for SHA-256 6193c96ae748673f…

MALICIOUS

PDF

78.6 KB Created: 2021-03-16 01:38:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bc98ecd66ffc50ad525b4c18118590c0 SHA-1: 5908bb6ca85cd8be26c33144237906ecf1cc8341 SHA-256: 6193c96ae748673f8f763f808bc34b6cedd3141fb2e24079728bd1ce84627dd5
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://maypoin.ru/wix?keyword=blue+hawk+premixed+vinyl+tile+grout+drying+time PDF link annotation
    • http://copyrightnotices-form.com/75040726824ej5nt.pdfIn PDF document text
    • http://kapovulup.mywebcommunity.org/soderajozexegakuvivubowa.pdfIn PDF document text
    • https://cdn.sqhk.co/bozogekeji/ciiidH5/bomas.pdfIn PDF document text
    • http://sowipilarow.mygamesonline.org/sch_binh_php_tn_t_v_36_k.pdfIn PDF document text
    • http://rewita.fun/dukonimebejerunm7quq.pdfIn PDF document text
    • http://najetaxu.mygamesonline.org/alcohols_and_phenols_ncert.pdfIn PDF document text
    • http://foxilajat.sportsontheweb.net/dell_optiplex_780_sff_power_supply_upgrade.pdfIn PDF document text
    • https://zinimokukaz.weebly.com/uploads/1/3/6/0/136053997/250038.pdfIn PDF document text
    • http://megatorg.ru/marvel_universe_reading_guidencehi.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/jfZhb7E/kogama_school_is_just_super.pdfIn PDF document text
    • https://jogivugu.weebly.com/uploads/1/3/2/7/132740949/seboxumewalogelezug.pdfIn PDF document text
    • https://cdn.sqhk.co/janurisu/7hbHcje/street_of_rage_2_rom_bin.pdfIn PDF document text
    • http://zikuwojanubeg.iblogger.org/66304828780.pdfIn PDF document text
    • https://jonozexogu.weebly.com/uploads/1/3/4/3/134357932/mafenadadasu.pdfIn PDF document text
    • http://jerimujolegem.medianewsonline.com/pdf_zoology_dictionary.pdfIn PDF document text
    • http://lodemazupunogas.iblogger.org/lonagurebobamozav.pdfIn PDF document text
    • https://ramasiwo.weebly.com/uploads/1/3/5/3/135390431/2247395.pdfIn PDF document text
    • http://tivaxamikesu.iblogger.org/46009906024.pdfIn PDF document text
    • https://cdn.sqhk.co/guvevifowo/SAgdicX/gopekubunevodimoxi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sedobuxekazadi.rf.gd/uefa_champions_league_2019_games.pdfIn PDF document text
    • https://cd753cf5-d90a-4073-9c55-931a76e81761.filesusr.com/ugd/8826df_308ce8b41b634f42836e8f26a2464e87.pdf?index=trueIn PDF document text
    • https://d670dda7-df53-4ef1-8eda-d3256df28744.filesusr.com/ugd/dbbbec_e686e233b3f048a0af7b3cc766048130.pdf?index=trueIn PDF document text
    • https://b9e1b105-38e0-4bbf-baad-90de1e2021e1.filesusr.com/ugd/432b07_8946f1b1d714465394c3cda8ba0b9930.pdf?index=trueIn PDF document text
    • http://pijewonizitubi.epizy.com/rogers_centre_roof_report_today.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_off0000f39a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39A 5628 bytes
SHA-256: 351bb6da714d0d116751ff6ad5822431d515cf09f0cada512539c7270265d9b9
font_01_sfnt_off000106bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106BD 11680 bytes
SHA-256: c5937ca8e28a861a1e9e1a7b36c249a37f94203e289e0533847743431bcae0bf

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