Malicious PDF — malware analysis report

Static analysis result for SHA-256 26cc85773428f7fd…

MALICIOUS

PDF

77.7 KB Created: 2021-03-06 09:11:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 379b220521dbb62f3a72ea6f7af2dcab SHA-1: 49e91facec5c62f43efda1deef30fef864bd2ffb SHA-256: 26cc85773428f7fdb1e2d6ae5cba4dfe785a696c0d0cffbf83ab95a5fec718e6
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to disposable domains and are designed to act as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, appears to be a lure related to "Lemony Snicket's A Series of Unfortunate Events".

Machine Learning

  • Nyx PDF Classifier malicious score 0.8244

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://gimoguvi.ru/award?keyword=lemony+snicket%2527s+a+series+of+unfortunate+events+cast+movie PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4497688/normal_5ff805d0e98f4.pdfIn PDF document text
    • https://cdn.sqhk.co/falugojafat/jejjgju/v_live_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/todiwapubu/jjYHbgd/wipukebapi.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvisisitinu/ieFgeZC/8460509840.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/HaZhcq2/ryan_toys_fake_video_call.pdfIn PDF document text
    • http://groby-ritual.online/71326039096zqjj5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498883/normal_5fcc0f0184142.pdfIn PDF document text
    • http://prizinsta.online/50540372238jtcbg.pdfIn PDF document text
    • http://pycnidwzxc.info/ruger_lcp_owners_manualqnkx3.pdfIn PDF document text
    • http://marafonsport.site/imagenes_de_caligrafia_para_nios63htc.pdfIn PDF document text
    • http://new-leggins.site/sports_illustrated_covers_list3dusy.pdfIn PDF document text
    • http://pegijegur.mygamesonline.org/jimmy_buffett_margaritaville_margarita_maker_recipe.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/mental_endurance_synonym.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/icjjDeB/62683164953.pdfIn PDF document text
    • http://akfb.online/artstudio_pro_brushesnfzjp.pdfIn PDF document text
    • https://cdn.sqhk.co/fapetemiji/hi8mIhg/monster_fishing_legends.pdfIn PDF document text
    • http://damvglaz2.xyz/navy_seals_workout_movey4vk3.pdfIn PDF document text
    • http://mojadejazisapa.sportsontheweb.net/how_much_is_a_pole_vault_pole.pdfIn PDF document text
    • https://cdn.sqhk.co/posiraki/hhAjggj/sans_undertale_songs_piano_tiles_game.pdfIn PDF document text

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