Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c540ab568c9a4a…

MALICIOUS

PDF

188.4 KB Created: 2021-03-11 00:29:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: dbe9d1bef9954fa6ec329a7ce7d25b7b SHA-1: bf05f933cbdf4c3aa4c28d52d5528682a835fc4f SHA-256: 47c540ab568c9a4ab9c917060fdff372a4c71ba13bd44ab3be4e3204f32477bb
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9749

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://kuzutuzo.ru/award?keyword=life+after+death+deepak+chopra+pdf+download PDF link annotation
    • http://vepenuvix.mygamesonline.org/50_soundtrack_-_fifty_shades_freed_2018_full_album.pdfIn PDF document text
    • https://cdn.sqhk.co/xogodapap/wibhfii/adders_and_subtractors_in_digital_electronics.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/what_size_labels_dymo_450.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450889/normal_6032e650bbd10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377125/normal_6013250d1266d.pdfIn PDF document text
    • https://cdn.sqhk.co/ravuviwidi/fghQgfs/femakajutuzegukerolixu.pdfIn PDF document text
    • https://cdn.sqhk.co/zafowavo/bxKL9jd/63380564382.pdfIn PDF document text
    • https://5b949be5-44ef-49af-96c7-0ebaa8fe632e.filesusr.com/ugd/3402b1_752a8d031d6041719de7e6c268fc9f53.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/80a6fc9c-3725-41ce-8b21-c883e2c18f0d/plantronics_wireless_headset_cs351n_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce28dbe9-9e0f-45ef-8592-8de9e5f13b03/42262635465.pdfIn PDF document text
    • https://e02212b7-c8ec-4bf5-ba3e-d68a1de675e0.filesusr.com/ugd/7f1d73_34b5226369d84829a558fbb8fcfdbce7.pdf?index=trueIn PDF document text
    • https://1f53f175-067f-4140-b001-f66bebc9855b.filesusr.com/ugd/c711d8_afe4f18dc44a42d083677b0c4901ea87.pdf?index=trueIn PDF document text

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