PDF malware analysis — malicious · ec2ed00fada9ed5f

MALICIOUS

PDF

51.7 KB Created: 2021-03-15 21:50:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 52aae611b07ad7793550f0eba4141e62 SHA-1: dbdd169e7b25e7a418ad64a882d7ef2a5c149438 SHA-256: ec2ed00fada9ed5ffe57dfde075dbdba8990735c692af3a40c50274cbbc8656e

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains embedded URLs that lead to suspicious domains, including one identified as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. Although no scripts were explicitly extracted, the presence of embedded URLs and the heuristic findings suggest an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.7510

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://crophysi.ru/award?keyword=ielts+writing+task+1+general+samples+pdf PDF link annotation
- https://cdn.sqhk.co/venifirub/ekSgixy/28975201658.pdfIn PDF document text
- http://job-finder.space/97689781416ew4vy.pdfIn PDF document text
- https://cdn.sqhk.co/jutafegobexe/gchhBib/big_sean_bounce_back_lyrics_deutsch.pdfIn PDF document text
- https://cdn.sqhk.co/pabefidinaz/hjhgahe/stick_battle_gif.pdfIn PDF document text
- http://instapriz365.site/how_to_use_lancets_for_acnesrb0w.pdfIn PDF document text
- http://zupebupinumupo.iblogger.org/titel.pdfIn PDF document text
- https://cdn.sqhk.co/liminekaj/ggge1R5/zara_kids_jacket.pdfIn PDF document text
- http://xozonline.ru/peer_gynt_sheet_music_pianobg9jk.pdfIn PDF document text
- https://cdn.sqhk.co/nonuripot/ZSKPYu3/match_paint_color_by_vin_number.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d457efe4-2929-4349-b073-f3791f813e5d/how_to_dark_mode_word.pdfIn PDF document text
- http://rajamuviw.epizy.com/telugu_news_tv_live_apk.pdfIn PDF document text
- https://s3.amazonaws.com/sorogamat/xuvakilokevisukixax.pdfIn PDF document text
- http://gagimuludodu.epizy.com/batovipasujabisawobosu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5cc4a4dd-9730-42a9-a929-0faa61021e79/12353780727.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/df15f41a-2674-4524-9871-94f9e6f5d31b/el_himno_nacional_de_honduras_y_su_explicacion.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cd0e9db5-48cf-4e86-a92d-40e6c571f383/smart_board_exchange_games.pdfIn PDF document text
- https://s3.amazonaws.com/wizedumi/tirixezomad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3008e775-4074-4726-a96e-8028d9cb4a83/best_fingerstyle_guitar_lessons_online.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/17b99d71-3123-499e-a626-07d9cdb5ec54/pearson_chemistry_textbook.pdfIn PDF document text

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