Malicious PDF — malware analysis report

Static analysis result for SHA-256 934ea0c903627111…

MALICIOUS

PDF

72.1 KB Created: 2021-04-03 12:37:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8735f5f10ff78d8797cdcd0c01d6bb8a SHA-1: dc7466045dba9b0984690414c779bfb6a387b18f SHA-256: 934ea0c9036271118eb9467aa1addf1c591958b0164e33a938ee332e169d0fc4
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable hosting, suggesting a link farm designed to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a large number of links on potentially untrusted domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://botokaw.ru/award?keyword=cell+cycle+mcqs+pdf PDF link annotation
    • http://load-bcp.com/the_5th_wave_summarydclp2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387427/normal_60023967a9c55.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/vakinukenow.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391921/normal_5ff2d517ed434.pdfIn PDF document text
    • http://bezprovodov.guru/how_to_draw_books_for_13_year_oldsc53sq.pdfIn PDF document text
    • http://dvestideyli.xyz/pauvre_anne_chapter_4mstt2.pdfIn PDF document text
    • http://flebolog24.com/namokevajexurgjp08.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/76761847986.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/bitcoin_trading_platform_dragons_den.pdfIn PDF document text
    • http://best-store.club/narnia_3_in_tamilyogik57bm.pdfIn PDF document text
    • http://kprovk.xyz/dawuvinuxewupoja9kjvp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://temomij.epizy.com/estudio_biblico_del_libro_de_hechos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11dc51ab-97c1-4c0b-8272-e9a593c2aae6/wawulazumifa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/823d1edf-5fbe-4227-8f48-9d439427adbf/swf_single_head_embroidery_machine_price.pdfIn PDF document text
    • http://fuzakumadobujav.epizy.com/56550611687.pdfIn PDF document text
    • http://tatasoge.epizy.com/adjectives_synonyms_and_antonyms_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/998cba3a-c09b-4edb-96e1-60fdd94915f5/nowekevapator.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD08 5128 bytes
SHA-256: 8ee61a106a1041d79f5bbfd16512f111fc89a22d91d830b5a82587ff7dd80dca
font_01_sfnt_off0000ee75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE75 10936 bytes
SHA-256: be42ec5e16023550ca0e4d630d883bdace35c52df8881ae2215993d46e450547

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