Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1bca5e95add3966…

MALICIOUS

PDF

50.6 KB Created: 2021-02-15 06:51:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 79c5a04e9673bbb26e75b6e5ac5e864e SHA-1: 238c69bb7a6486118a30814f7a54e6f43f40b5d8 SHA-256: d1bca5e95add396649a58517309c28d1a32eefb9929ad8cfba35193019b2b851
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, with several pointing to disposable hosting and one specifically identified as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of external URIs and the link farm heuristic suggest the primary function is to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7328

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://druttle.ru/aws?utm_term=behind+enemy+lines+2006 PDF link annotation
    • https://losulojer.weebly.com/uploads/1/3/0/7/130739206/5535418.pdfIn PDF document text
    • https://tidevaxapoled.weebly.com/uploads/1/3/5/9/135971763/tufelegenozanatukos.pdfIn PDF document text
    • http://tojasojula.iblogger.org/2020_audi_r8_performance_specs.pdfIn PDF document text
    • https://cdn.sqhk.co/viforoge/dWicggV/fememe.pdfIn PDF document text
    • https://sugasukeni.weebly.com/uploads/1/3/4/8/134878852/tajinibasetovabakojo.pdfIn PDF document text
    • https://nububoreral.weebly.com/uploads/1/3/4/4/134467099/fc4bb7a96986aeb.pdfIn PDF document text
    • https://vuderuxedus.weebly.com/uploads/1/3/4/6/134692959/294983.pdfIn PDF document text
    • https://falerelijiwega.weebly.com/uploads/1/3/4/6/134612416/e0f15aea.pdfIn PDF document text
    • https://cdn.sqhk.co/dolitife/IUlhdjh/2020_fruit_bat_quarter_worth.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/ii52XxC/the_chosen_one_phrase_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/girasufu/Rrjbhdi/metal_slug_code_j_pc.pdfIn PDF document text
    • https://nakigere.weebly.com/uploads/1/3/4/6/134608851/jajegurina.pdfIn PDF document text
    • http://lamerowed.rf.gd/math_practice_worksheets_for_2nd_grade.pdfIn PDF document text
    • http://tezajiduzut.epizy.com/arya_2_songs_please.pdfIn PDF document text
    • http://ragoposetetadu.epizy.com/gupexizo.pdfIn PDF document text

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