Malicious PDF — malware analysis report

Static analysis result for SHA-256 066aac5af9cd57bf…

MALICIOUS

PDF

64.0 KB Created: 2021-03-19 18:33:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: beea939645c68a75900cc714c8532857 SHA-1: d0d66a1fe2f645cd19b394cefe36b74a1721903b SHA-256: 066aac5af9cd57bf4fadf35420830451e858fad018414b4d1cdd136732c5b928
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and one specific URL is highlighted as a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF's structure and embedded links suggest it's part of a phishing campaign aiming to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9263

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://midufefew.ru/strik?utm_term=el+mundo+magico+de+terabithia+2+pelicula+completa+en+espa%25C3%25B1ol PDF link annotation
    • http://bibunom.iblogger.org/once_a_runner.pdfIn PDF document text
    • http://nunopasatipimav.medianewsonline.com/fundamental_laws_of_electrical_engineering.pdfIn PDF document text
    • https://cdn.sqhk.co/xixujipum/idR4ihV/formula_sports_car_racing_impossible_tracks_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/palezubifo/jZ4geqb/cover_orange_2_level_10-_20.pdfIn PDF document text
    • https://cdn.sqhk.co/tavikagisato/heib3gh/namazu_beast_tribe_quests_ffxiv.pdfIn PDF document text
    • https://cdn.sqhk.co/lirerafi/r29dAgc/mukijadikanuni.pdfIn PDF document text
    • http://zepofevof.22web.org/juzejosegibejivewotebufaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rukawinasi.rf.gd/woxojekosivemora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65876aad-5660-4f7a-be7d-2d99dcb37471/muvutatubunelizepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19c3cedb-1fe3-45ce-8d69-63850bbfd8cc/winin.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/what_is_the_best_genre_of_music_to_study_to.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/37201471930.pdfIn PDF document text
    • http://numorajigot.epizy.com/timetitukediveti.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/23468099457.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/46410906323.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/daa155db-db6d-4284-b125-80416157c6ba/basununusexaj.pdfIn PDF document text
    • http://zevusup.atwebpages.com/pojezibupux.pdfIn PDF document text
    • http://naxefugoxodikow.atwebpages.com/62940996249.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/how_to_take_apart_kenmore_70_series_washer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20019d73-0a63-4d83-8674-444fa23b0336/what_does_a_pitbull_great_dane_mix_look_like.pdfIn PDF document text
    • http://kufalogomisag.epizy.com/cowboy_bebop_rush_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/goebbels_diaries_quotes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbff8bb6-9a3e-4560-9064-d420994e8022/beretta_m9a1_shoulder_holster.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC08 5928 bytes
SHA-256: 41ac60d99959a5c0e2b519e69a898b8413b655f49799da977b13a1003b14d906

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