Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d05aeb22c0f1f4…

MALICIOUS

PDF

73.5 KB Created: 2021-02-02 21:56:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 675b4eb0b12d9cef37e24577bee828c6 SHA-1: 5001ecaf9ff1a1b685a96ef9fb1b6cb11b3158e4 SHA-256: 79d05aeb22c0f1f49431792899d54fa85cf3fbfd89b3c3d9c3fa707851c6e0e1
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/aws?utm_term=one+free+carfax+report+coupon PDF link annotation
    • https://cdn.sqhk.co/kibedutej/Giitja4/nasarilujopenuvesulog.pdfIn PDF document text
    • http://fegudifo.22web.org/scholarship_reference_letter_template.pdfIn PDF document text
    • http://gafaneripebenu.iblogger.org/siruthai_puli_tamil_movie_hd.pdfIn PDF document text
    • http://mokexuvukidifek.iblogger.org/pixamefobuwafapofe.pdfIn PDF document text
    • http://vannabanyavsedela.xyz/23607042251pzeil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492286/normal_600bf9a029adf.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/fggaLid/75592347026.pdfIn PDF document text
    • http://org-fruit.space/wixakikejawu7l9d.pdfIn PDF document text
    • http://healthytrands.com/edukondalavada_venkataramana_govinda_govinda_mp3_free_downloadvyaa3.pdfIn PDF document text
    • https://cdn.sqhk.co/tuvameboroke/1jjljbW/endless_run_temple_legend_3d_model.pdfIn PDF document text
    • https://cdn.sqhk.co/pakebisas/jjisTjj/fajuliwusawotuvokivuxuku.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450351/normal_5fcfad81ef308.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wadekazu.epizy.com/kennewick_weather_report.pdfIn PDF document text
    • http://sopuvezek.rf.gd/sebofogodozejobokiniwalim.pdfIn PDF document text
    • http://kupobazixivev.rf.gd/kejiwujudaxijebopakuwit.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_off0000e2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EA 4896 bytes
SHA-256: 4e42b098d2609b58e76a1212b884cf9d71285189b3f14c5cb1f248c9a15afa6b
font_01_sfnt_off0000f3ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AC 10960 bytes
SHA-256: 454139d1dfd10f7cfb6d7480634f3363d68f29220e5253684f341a92be0cd2f5