Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff2af7e04366f89…

MALICIOUS

PDF

66.8 KB Created: 2021-03-03 14:48:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 053fe8e41ca98edf156214aae2f41268 SHA-1: a6d6c4f5d867852a1a1486d20337108a7853758c SHA-256: 7ff2af7e04366f89c3fb486ba9f3dcb917e61defa2fe0df6216d6d03046910ea
124 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one pointing to a domain associated with phishing and malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is part of a link farm on disposable hosting, suggesting a phishing or spam campaign. The ML classifier and ClamAV detection further support the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7773

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://resalured.ru/award?keyword=how+can+you+tell+if+you+have+viral+or+bacterial+pneumonia PDF link annotation
    • https://cdn.sqhk.co/lizasizova/GbPgf97/kofuxodub.pdfIn PDF document text
    • http://debopuforu.22web.org/chipmunks_version_songs.pdfIn PDF document text
    • http://nenegifivujaxu.mypressonline.com/67136406554.pdfIn PDF document text
    • http://xafopawiki.medianewsonline.com/jisitomeduvitumor.pdfIn PDF document text
    • http://loneresel.mygamesonline.org/98414967721.pdfIn PDF document text
    • http://nncucuucuc.space/moran_shapiro_fundamentals_of_engineering_thermodynamics_7th_edition_solution_manuall4z2u.pdfIn PDF document text
    • http://vibuluvizawo.66ghz.com/jovedawemagegirikifakas.pdfIn PDF document text
    • http://faceit.su/679368289002gebm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://givimuvupavu.epizy.com/online_editor_rearrange_pages.pdfIn PDF document text
    • http://valamujunitun.epizy.com/vujaxadekimel.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/location_prepositions_exercises.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF654 5312 bytes
SHA-256: fa7b6f5cae0ac932419cd682fe815c77cde46249cfb4da14281d8a57c3c3ce90

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