Malicious PDF — malware analysis report

Static analysis result for SHA-256 45e7185a8ca088db…

MALICIOUS

PDF

48.0 KB Created: 2021-02-01 14:51:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 3d87543229bb2ddff8a279e2d8156530 SHA-1: be3de4a835841a930d2e420058b6c09ec15962d4 SHA-256: 45e7185a8ca088db37cd892b57b9f3d3a34a484af98a35f5ed090975e1932dfe
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. The PDF contains a large number of embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing attempt. The presence of 'utm_term' parameters in some URLs indicates tracking, often used in phishing campaigns to gather information about the user or the lure. No scripts were extracted, but the overall structure and URL distribution strongly suggest a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7155

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://baarspo.ru/123?utm_term=trophies+spelling+practice+book+grade+5+answers PDF link annotation
    • http://unosital.space/poor_economics_a_radical_rethinkingil8ec.pdfIn PDF document text
    • https://nogafuku.weebly.com/uploads/1/3/2/8/132815296/rugajoxori_liviw_polorewemifej.pdfIn PDF document text
    • http://copyrightproblem.com/63375639688kxn7z.pdfIn PDF document text
    • https://dotejapu.weebly.com/uploads/1/3/4/0/134042906/96d2fe31ef8ec.pdfIn PDF document text
    • http://prizinsta.info/fobomuxanedumarusubudoz0ydg9.pdfIn PDF document text
    • https://nibuwoxemunovox.weebly.com/uploads/1/3/4/7/134714338/ac2f797.pdfIn PDF document text
    • http://kitigaw.22web.org/decade_counter_using_ic_7490.pdfIn PDF document text
    • http://ginajazadunoxix.22web.org/gadolinium_medication_guide.pdfIn PDF document text
    • http://doctora.club/microsoft_word_to_plugin4r0ye.pdfIn PDF document text
    • https://veworokog.weebly.com/uploads/1/3/1/6/131606039/palatemanined.pdfIn PDF document text
    • https://tumunonapuve.weebly.com/uploads/1/3/1/3/131379134/gomunabosoji_tumulev.pdfIn PDF document text
    • http://petazizol.iblogger.org/megadimiko.pdfIn PDF document text
    • https://kigadipokifexi.weebly.com/uploads/1/3/0/8/130813079/kepeteja.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/robots_androides_sexuales.pdfIn PDF document text
    • http://merizipu.rf.gd/38420253913.pdfIn PDF document text
    • http://kelopejawutan.rf.gd/who_you_say_i_am_song_sheet.pdfIn PDF document text
    • http://mesesoriran.epizy.com/business_process_improvement_tools.pdfIn PDF document text
    • http://lidazadopedu.rf.gd/directx_windows_10_64_bit_2019.pdfIn PDF document text
    • http://xezorepolik.epizy.com/alchemy_ios_game_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/eraser_windows_vista.pdfIn PDF document text
    • http://wowimes.epizy.com/berewopi.pdfIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/aha_hypertension_guidelines_2018.pdfIn PDF document text

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