Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e8be1182a2556d…

MALICIOUS

PDF

68.2 KB Created: 2021-02-15 00:54:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 45f8c619192944b6865b2e87dd78ef67 SHA-1: c65808f2077d4a1dd400cfda402c0c13b03934a1 SHA-256: 34e8be1182a2556d74075d18d948b6d0a76a687fcba53b835ea6b98bfa0102f6
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection. It contains numerous external URLs, many of which are hosted on disposable domains, suggesting a link farm or phishing campaign. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using small PDFs as link farms on disposable hosting, further supporting a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8435

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=video+show+editor++for+pc PDF link annotation
    • http://orbitan.fun/recommendation_letter_template_free8emu1.pdfIn PDF document text
    • https://cdn.sqhk.co/vugomupuzisa/CsdhaGc/piano_lessons_online_easy.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/fqFhagg/train_station_railroad_transport_line_simulator.pdfIn PDF document text
    • http://berkeciftci.net/taj_mahal_information_in_marathigrs6i.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuvezosapa/ifsZhiY/joker_bgm_music_full_song_mp3_download.pdfIn PDF document text
    • http://daravto18.ru/cleaning_business_proposal_template_freefwypo.pdfIn PDF document text
    • https://cdn.sqhk.co/godajaxox/ggD6Ogh/police_moto_bike_prisoner_transport_3d_download.pdfIn PDF document text
    • http://tevfikyuce.xyz/bisiguwozotexujupililajudykpxg.pdfIn PDF document text
    • https://cdn.sqhk.co/govizanorev/9heOqMg/64233836754.pdfIn PDF document text
    • http://getfreecreditreport.info/fancy_text_generator_premium_apkrossk.pdfIn PDF document text
    • http://grenkasalo4.xyz/doneduxabobazwfdtr.pdfIn PDF document text
    • http://maykistore.ru/bisutaxurwmf5k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386834/normal_60106ed15fc61.pdfIn PDF document text
    • https://cdn.sqhk.co/jixuvepabu/jdAibgc/23734946548.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475720/normal_5feafec1bab9a.pdfIn PDF document text
    • https://cdn.sqhk.co/ropimipaf/j0nigge/56710146616.pdfIn PDF document text
    • http://lnstagramverificationbadge.com/ajax_post_request_fileewm1y.pdfIn PDF document text
    • http://bettermoneytips.com/bosch_silence_plus_44_dba_owners_mandi0ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB83 5060 bytes
SHA-256: 7a59370f538f6fef8e2baeb040a9bf00ea70960d7c37d9b8c33708e836154816
font_01_sfnt_off0000ecd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD2 10468 bytes
SHA-256: a43a00b697d6b11c59bcc09bb791cea4ab5b490b5819fbfda576b87b58d27c2b

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