Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19007b16dd2b428…

MALICIOUS

PDF

40.7 KB Created: 2021-02-16 00:11:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0d76d8a2efd98b3e7f38e0794787b4ac SHA-1: f758fcec053a2bcd54d9549950bc2a0215a34bed SHA-256: e19007b16dd2b428ba25179541237b28ec5f896c4e4bc9f3105f88e3cd7c92b1
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure with an image-only design and an action trigger. It contains multiple embedded URLs, with a primary suspicious URL pointing to 'seumenha.ru'. The PDF structure and heuristic firings suggest it's intended to trick users into clicking a link, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8921

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://seumenha.ru/strik?utm_term=definicion+de+gobierno+segun+varios+autores PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390642/normal_5fd9da9fb2983.pdfIn PDF document text
    • https://cdn.sqhk.co/gobajejuz/EZidjiq/ultimate_epic_battle_simulator_descargar_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392237/normal_6026b0a8c1d30.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/fqgvPL7/67565869339.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/gdJjgQv/goosechase_join_game.pdfIn PDF document text
    • http://interbank.link/fabula_de_esopoi9014.pdfIn PDF document text
    • https://cdn.sqhk.co/tasewapimol/gfgjhae/bloons_td_battles_strategy_late_game.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/8ehfh2B/text_fiction_play_zork_apk.pdfIn PDF document text
    • http://instapriz365.site/senior_digital_marketing_manager_salary_los_angeles2bk9k.pdfIn PDF document text
    • http://lnstagram-helping.live/zamuved09j.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/duoqsji/77189133088.pdfIn PDF document text
    • http://zufoxemudasoso.iblogger.org/59866122893.pdfIn PDF document text
    • http://medyayazilimtr.com/widerizufedom8wrh4.pdfIn PDF document text
    • http://medyayazilimtr.com/megadede_apk_ios_20207xcm4.pdfIn PDF document text
    • http://importants.space/vodopebazopitusatekumu0yor8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384316/normal_5ffb8d9fa855e.pdfIn PDF document text
    • https://cdn.sqhk.co/zafupusapun/haHiiNR/vh1_casting_shows.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387040/normal_5ff852bc47aa9.pdfIn PDF document text
    • http://bejopirobi.epizy.com/46100781183.pdfIn PDF document text
    • http://fazafowunop.epizy.com/muvimeduwagarudinusivelad.pdfIn PDF document text

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