Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0223b3425baa41d…

MALICIOUS

PDF

72.1 KB Created: 2021-02-25 03:51:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 29f5356685649ccf507cb53537590a37 SHA-1: aa30bae9d28e650eae04a14e9f2330033abfa5ef SHA-256: f0223b3425baa41d5351c2c910d65cc564b7057f71d82b39b0cb0ea775d44d2a
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it uses a social engineering lure to trick users into installing a browser extension or update. The document contains numerous embedded URLs, with one pointing to a suspicious domain that appears to be part of a link farm, likely serving as a distribution point for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=sai+2+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369168/normal_60012689a47e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384152/normal_5feff6ba9ef6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425515/normal_600aaa1868912.pdfIn PDF document text
    • http://beach-fruit.fun/participial_phrases_exercises_with_answerswdwiy.pdfIn PDF document text
    • http://xolimaked.iblogger.org/tigewobijobelowemageramux.pdfIn PDF document text
    • http://bixifofagowezi.22web.org/99039097013.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4529977/normal_60265e5b849da.pdfIn PDF document text
    • http://service-hire.com/how_to_clean_a_mantel_clockh7fvx.pdfIn PDF document text
    • https://cdn.sqhk.co/wejuladuke/jhaYWij/asteroids_arcade_game_value.pdfIn PDF document text
    • https://cdn.sqhk.co/nezosomoji/Vc9LfSy/ice_cream_shop_toy.pdfIn PDF document text
    • https://cdn.sqhk.co/foxoxaze/ifnlTig/online_bow_hunting_games.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mibofive.epizy.com/pupagosidive.pdfIn PDF document text
    • http://dolazagoloximip.epizy.com/56387528849.pdfIn PDF document text
    • http://gewopebij.epizy.com/flame_test_experiment_practical_report.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/jquery_ajax_post_form_values.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_off0000def2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF2 5048 bytes
SHA-256: 79534cc0e7d38663e03d1749d2b8375913796ab4ab988eabc0120ce0e31fca58
font_01_sfnt_off0000f044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF044 10412 bytes
SHA-256: 2c3209963283ad88437dbc56932bde47fe8d99b6a178aad3ad74b798f9451a1f

Open this report in the interactive analyzer, or submit your own file for analysis.