Malicious PDF — malware analysis report

Static analysis result for SHA-256 212b9c1b9501f42e…

MALICIOUS

PDF

59.7 KB Created: 2021-03-16 19:41:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 840bc4cb2b53336e4ae89e9859731899 SHA-1: 48bcf5e320c232d79b5e10a86ab7bbfa3a32ff05 SHA-256: 212b9c1b9501f42efa44dc45ce4bf1d799f7f564a515a99ea81b0cca5fd4ef2f
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded URLs and is flagged as a link farm on disposable hosting, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection further support its malicious nature. The document body, though heavily obfuscated, contains text related to loans, likely serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6078

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://vilenefex.ru/award?keyword=difference+between+secured+and+unsecured+loan+pdf
    • https://cdn-cms.f-static.net/uploads/4503524/normal_601ad1b8a374c.pdf
    • http://haustova.com/gba_emulator_pro_apkrirq8.pdf
    • https://static.s123-cdn-static.com/uploads/4382418/normal_5ffc9e16c931b.pdf
    • http://paxezimusosesa.scienceontheweb.net/renewable_energy_disadvantages.pdf
    • http://sandwichhq.club/4187433728y6xe8.pdf
    • https://static.s123-cdn-static.com/uploads/4494657/normal_5fefcee039887.pdf
    • http://terugate.mypressonline.com/machine_learning_for_finance_in_python_datacamp_github.pdf
    • http://bikomowaxibujoj.medianewsonline.com/96973839011.pdf
    • http://kitukotobov.medianewsonline.com/59568759298.pdf
    • http://tamakedesununod.mywebcommunity.org/88310689941.pdf
    • http://propovar.ru/trimble_tsc2_battery_replacementcrfz2.pdf
    • https://cdn-cms.f-static.net/uploads/4393635/normal_6041fd43d1361.pdf
    • http://molotkov.site/fukukagolerefopufizugokuobzv8.pdf
    • http://toramowajo.epizy.com/2757916108.pdf
    • https://s3.amazonaws.com/sezebepit/aviation_logo_templates.pdf
    • https://s3.amazonaws.com/juzewojavomofew/template_web_html_responsive.pdf
    • https://uploads.strikinglycdn.com/files/dac560eb-1a88-4abe-a753-a86c7a668958/safety_first_car_seat_manual_grow_and_go.pdf
    • https://uploads.strikinglycdn.com/files/467668e7-3ac2-4c97-bb73-44a2fc4c90eb/how_to_tie_a_square_knot_in_a_fleece_blanket.pdf
    • https://uploads.strikinglycdn.com/files/9d4b66f3-6444-4b11-9968-675de7133d34/end_of_the_world_song_lyrics_day_by_dave.pdf
    • http://putazosaw.epizy.com/55425918008.pdf
    • https://s3.amazonaws.com/wanalovum/beauty_parlour_logos_vector_free.pdf
    • https://uploads.strikinglycdn.com/files/34bcbf46-cfbb-4f3f-9a97-9a63b85bfbe3/kagekuzizeziposokivuvir.pdf

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