Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cb15d2c211f0a04…

MALICIOUS

PDF

67.2 KB Created: 2021-04-17 15:16:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8046e0495059f03a10b02ae3f0660646 SHA-1: 9db41c3386a6e836694d62cf90d2f3a22c6a3fa2 SHA-256: 3cb15d2c211f0a04d80c264f32df27ec3a1e5d431946e00a48bc025a681afc81
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 detected as malicious by ClamAV and an ML classifier. It contains numerous links to disposable domains, indicating a link farm designed to host phishing or malware distribution pages. The primary malicious URL identified is https://resalured.ru/strik, which is likely used to deliver a second-stage payload or redirect to a phishing site. The document body, though heavily obfuscated, contains keywords related to a jump starter, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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/strik?utm_term=stanley+600+amp+jump+starter+how+to+use PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382003/normal_6059bc0a21e3e.pdfIn PDF document text
    • http://vostokzapad.su/mejumev7l4br.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384472/normal_6021510b1175b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492892/normal_60029b6bc827f.pdfIn PDF document text
    • http://smartcreditcheck.info/3111905081l3l77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401989/normal_5fcd629220568.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/tmux_mac_cheat_sheet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385863/normal_605825b69b6c6.pdfIn PDF document text
    • http://voirlo.xyz/fabigifogisobowofetajm9wbe.pdfIn PDF document text
    • http://milansit.space/72376300328qj2ao.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390330/normal_6015d39b994fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421970/normal_5fd1c7ac84449.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/25784601104.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492257/normal_604cc13cd40f4.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/cat_in_the_hat_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/chinese_light_novel_download_epub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484994/normal_6059329ef346f.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/whatsapp_video_2019_bhojpuri.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/how_do_you_cook_a_roast_in_an_electric_skillet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/221f70df-5cf9-437c-a106-875214db7ee8/53890718450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a984263-3faa-4350-b94b-375a88a7584b/nanemuvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df2e684-ce3e-4f36-8251-3562e5f28e8e/bissell_powerforce_compact_turbo_bagless_vacuum_cleaner_lightweight_vacuum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09fad622-7a9c-45d4-8010-d7a11b7099bc/sibebojuf.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBFC 5728 bytes
SHA-256: c4b3f40721f35e09563430dfe563e24da04a1275d78b0065df01d92ffca49c90

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