PDF malware analysis — malicious · 2108442cf53a2689

MALICIOUS

PDF

55.5 KB Created: 2021-06-11 19:48:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 5f3d2ea34c19c09a95f427a31a1497af SHA-1: 59b936cbae1548860517f5ecd8347446c84a4d60 SHA-256: 2108442cf53a2689c99308d4ab7a2fa64bea77b3c0d389eb7aec81768bc40455

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many pointing to disposable hosting and employing UTM parameters, suggesting a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure.

Machine Learning

Nyx PDF Classifier malicious score 0.8828

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://drafthe.ru/pbw?utm_term=game+of+thrones+season+8+subtitles+english PDF link annotation
- https://xigefazevape.weebly.com/uploads/1/3/4/6/134632801/ditej.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388629/normal_600eddc13e1d1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4502817/normal_60241556239e1.pdfIn PDF document text
- https://rojimabilaraxum.weebly.com/uploads/1/3/5/3/135314729/b092e95.pdfIn PDF document text
- https://kulilopoxi.weebly.com/uploads/1/3/4/3/134375859/2369816.pdfIn PDF document text
- http://labidan.pbworks.com/w/file/fetch/144651024/lease_termination_notice_letter_to_landlord.pdfIn PDF document text
- http://wekanivu.pbworks.com/w/file/fetch/145134519/7750201381.pdfIn PDF document text
- http://mujusevo.pbworks.com/w/file/fetch/144683856/crows_zero_2_full_movie_in_hindi_hd.pdfIn PDF document text
- http://pezaloribed.pbworks.com/w/file/fetch/145133904/katha_shri_ram_bhakt_hanuman_ki_mp3_song_download.pdfIn PDF document text
- http://kapetipubi.pbworks.com/w/file/fetch/145124373/xipewasoziz.pdfIn PDF document text
- http://supijexed.pbworks.com/w/file/fetch/144463059/the_odyssey_translated_by_emily_wilson_sparknotes.pdfIn PDF document text
- http://gonikob.pbworks.com/w/file/fetch/145063986/zilisixoxuvigel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/592b9c4b-1f4e-4c70-9917-2eb0bb74baa2/reference_letter_template_for_phd_student.pdfIn PDF document text
- http://fudejob.pbworks.com/f/web_development_and_design_foundations_with_html5_10th_edition.pdfIn PDF document text
- http://vuxoris.pbworks.com/f/advanced_water_treatment_technologies.pdfIn PDF document text
- http://nigezid.pbworks.com/f/42297063644.pdfIn PDF document text
- http://zexowisam.pbworks.com/w/file/fetch/144426417/42230349278.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dc884b11-62d3-439a-a686-ced34b9b8e12/how_to_deal_with_anger_issues_in_a_relationship.pdfIn PDF document text

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