Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0880afa93818b94…

MALICIOUS

PDF

58.6 KB Created: 2021-01-06 10:35:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 6f28b568cc28298c9f9ada33cbc009a9 SHA-1: d28c8382bf9d63707e09418f7cadee44a3751936 SHA-256: e0880afa93818b942ef1fa4961576630ad68be2e93d486a0730ec469ddd2d9e9
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, many hosted on disposable domains, indicating a link farm or SEO poisoning tactic. The embedded URL `https://trafftec.ru/aws?utm_term=free+live+tv+app+for+pc` suggests a lure related to free live TV applications. ClamAV detection as `Pdf.Phishing.Trojan` and ML classification further support its malicious nature. No scripts were extracted, but the structure strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8539

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://trafftec.ru/aws?utm_term=free+live+tv+app+for+pc PDF link annotation
    • https://wikabolodaj.weebly.com/uploads/1/3/4/6/134648749/loxepefow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407314/normal_5fb6e93e48a5d.pdfIn PDF document text
    • https://nevutero.weebly.com/uploads/1/3/4/7/134716167/0198336f.pdfIn PDF document text
    • https://dopijixofovaje.weebly.com/uploads/1/3/4/6/134692352/97f69b.pdfIn PDF document text
    • https://bematurom.weebly.com/uploads/1/3/4/8/134886193/9bf428f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375908/normal_5fda497435437.pdfIn PDF document text
    • https://cdn.sqhk.co/zoturisa/bHRgfja/puxolabinalidu.pdfIn PDF document text
    • https://jopalezaleloloj.weebly.com/uploads/1/3/1/3/131380469/buvedupugolip.pdfIn PDF document text
    • https://vonojatu.weebly.com/uploads/1/3/4/7/134711894/gobizofirejuzufap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/273e7b67-9e38-456f-9c46-cb2bbb3afb71/39789300687.pdfIn PDF document text

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