Malicious PDF — malware analysis report

Static analysis result for SHA-256 745f018b46da08eb…

MALICIOUS

PDF

66.6 KB Created: 2021-01-13 03:39:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: bca50a0ef05573f0cf523d912bcfe540 SHA-1: ab1fc8bb55a22145d121da61cd8bfcda822f9286 SHA-256: 745f018b46da08ebd7b9050bddef23e06309f414b8793ddfc75529a59308ecce
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file flagged as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, with one pointing to 'trafffi.ru', suggesting a phishing or malware distribution attempt. The PDF's content, though partially obfuscated, appears to be a lure related to medical terms, likely to entice users to click on malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9578

Heuristics 4

  • 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 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
  • 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://trafffi.ru/aws?utm_term=anteversion+y+retroversion+femoral+pdf PDF link annotation
    • https://site-1178275.mozfiles.com/files/1178275/free_vr_360_videos_download.pdfIn PDF document text
    • https://site-1168346.mozfiles.com/files/1168346/dominos_codes_buckshaw_village.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473047/normal_5fdf0d2158d5a.pdfIn PDF document text
    • https://site-1180586.mozfiles.com/files/1180586/auto_body_repair_estimate_template.pdfIn PDF document text
    • https://mimitokiwunas.weebly.com/uploads/1/3/4/0/134012498/dovagopu_tabuvatemov_gekubexadik.pdfIn PDF document text
    • https://site-1174034.mozfiles.com/files/1174034/wepuwaxul.pdfIn PDF document text
    • https://site-1187467.mozfiles.com/files/1187467/kilajulifejalad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384318/normal_5f96e550ac36c.pdfIn PDF document text
    • https://site-1175524.mozfiles.com/files/1175524/molarity_molality_and_by_mass_problems_answers.pdfIn PDF document text
    • https://site-1167951.mozfiles.com/files/1167951/30077805157.pdfIn PDF document text
    • https://site-1166620.mozfiles.com/files/1166620/limuwebute.pdfIn PDF document text
    • https://site-1174394.mozfiles.com/files/1174394/tannersville_pa_weather_report.pdfIn PDF document text
    • https://site-1173259.mozfiles.com/files/1173259/pentagon_mall_entrance_map.pdfIn PDF document text
    • https://zepaxanodufinek.weebly.com/uploads/1/3/4/4/134455649/705c817723209.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/futos.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/anime_websites_english_dubbed.pdfIn PDF document text

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