Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f93555eddb7af12…

MALICIOUS

PDF

33.6 KB Created: 2020-11-09 10:58:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b8cc78a09a0cfec341b33942477c55c3 SHA-1: b8cbb7b7256d0dea2069235281a7a554dee5166f SHA-256: 7f93555eddb7af1231b52c19f6846ee099586fcb54fda759b8c41b0bf5a28abb
64 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by an ML classifier as malicious. It contains an embedded URL that points to a suspicious domain, likely intended to redirect the user to a malicious site. While no scripts were explicitly extracted, the presence of an external URI and the ML classification strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 3

  • 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://trafffe.ru/aws?keyword=quetzalcoatl+fgo+extra+virgin+olive+oil PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f87266d7edfd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371812/normal_5f8a880cbb9de.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/sipatoxitodabu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419644/normal_5f96643caa6a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420902/normal_5fa794357d34a.pdfIn PDF document text
    • https://tafexoru.files.wordpress.com/2020/11/3294531957.pdfIn PDF document text
    • https://fajogamapu.files.wordpress.com/2020/11/sjsu_grading_scale.pdfIn PDF document text
    • https://gobomob.files.wordpress.com/2020/11/vuvebijazigal.pdfIn PDF document text
    • https://dudasituwet.files.wordpress.com/2020/11/belodagidukasadujofokeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d40064d-a5f9-4d81-8407-6051196c785c/how_long_is_a_greatsword_5e.pdfIn PDF document text
    • https://zojemadej.files.wordpress.com/2020/11/73587489466.pdfIn PDF document text
    • https://gesoxog.files.wordpress.com/2020/11/8951768752.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000066f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x66F9 10229 bytes
SHA-256: 14358f6abc6a4796319ff56e0d482c0afa82974035846b3293e7e9dea552ad24

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