Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ed0a6e3765756c…

MALICIOUS

PDF

27.4 KB Created: 2021-05-31 08:56:44 UTC Authoring application: Softplicity First seen: 2026-06-20
MD5: 146807b428984be67e10548869e56cf0 SHA-1: 2addbc0e7fd7e88d3beb770ac7d59c782c4fda24 SHA-256: d3ed0a6e3765756cb947f1c0b54daad4e01879206e454da61cf105fa66f97141
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links that lead to a suspicious URL, identified as a viral-video clickbait link. This suggests an attempt to trick the user into downloading a secondary payload disguised as a lab manual. The PDF structure and embedded URLs indicate a likely initial access vector via spearphishing attachment, leading to client execution.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3249

Heuristics 4

  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
    PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
  • 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://cdn-cms.f-static.net/uploads/5248501/normal_60aeed5516642.pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/5248501/normal_60aeed844a889.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b486248d9b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5248501/normal_60aeedd4b8cce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5248501/normal_60aeed93c04f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5248501/normal_60aeed25c096a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5248501/normal_60aeed74d5c2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5248501/normal_60aeed648904c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b486e2994da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b488806d653.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b48890dcad0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b4884f9c4ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b4886f31ab2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b4872febda5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b485c4120c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b4885f32983.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5259436/normal_60b488a0e2aa0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/5248501/normal_60aeed03be808.pdfIn PDF document text
    • http://jof.lods.icu/dls.php?q=Electronics+Workshop+Lab+ManualIn 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/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
🗂 Part of campaign: f-static.net 30 samples