Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e1cec337286c04b…

MALICIOUS

PDF

50.6 KB Created: 2020-12-27 12:05:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: fc6988097f58ae356ef1156ec7346f3b SHA-1: f8fb514fc900ccb8b8ee50bf5b2147d6d9b725a0 SHA-256: 0e1cec337286c04b2cff06f66d9598d3ec23872af0bde5a4b3a659e2cc313e67
184 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 0.7011

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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?utm_term=cdr+file+to+pdf+converter+online PDF link annotation
    • https://botofemuko.weebly.com/uploads/1/3/4/8/134891122/wegerojumuwemaladup.pdfIn PDF document text
    • https://cdn.sqhk.co/banifiga/hdhb6mV/jakeweketosukosa.pdfIn PDF document text
    • https://fepobiwebefu.weebly.com/uploads/1/3/4/5/134592484/nipesukugaku.pdfIn PDF document text
    • https://nipetetoxijekuj.weebly.com/uploads/1/3/4/7/134718304/6540460.pdfIn PDF document text
    • https://cdn.sqhk.co/sijoputolu/RZkoTBW/free_livestream_software_for_mac.pdfIn PDF document text
    • https://vegipojefatelon.weebly.com/uploads/1/3/4/8/134876486/32128b7253.pdfIn PDF document text
    • https://komolelavox.weebly.com/uploads/1/3/4/5/134518501/89def5f5f0d46b.pdfIn PDF document text
    • https://zupusifeduligam.weebly.com/uploads/1/3/4/3/134313264/lebokupavamoxedita.pdfIn PDF document text
    • https://tirilume.weebly.com/uploads/1/3/4/8/134886795/9cc4df14b.pdfIn PDF document text
    • https://vanawolibonute.weebly.com/uploads/1/3/4/3/134344109/5782785.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97e4638b-56f0-4e5a-b8e6-a6d347615e0e/35808410800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bdbf2fb-e509-46c1-b9a8-09d8967b852e/white_blazer_mens_combination.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25043536-3f25-47f9-aba6-a39effc8769b/kinamuz.pdfIn PDF document text

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