Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b47c5abe0f95776…

MALICIOUS

PDF

64.0 KB Created: 2021-02-27 19:48:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ec40d16e3d27bdfcb6aea1d458ee60fd SHA-1: 26dc82e763c4c6a7ed0b992cf1d93e3644450523 SHA-256: 1b47c5abe0f957767769cf2e7b4a3b0e37bcd8fdabb28334326524fa60b0a46a
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier. It contains a large number of external links, many of which point to other PDF files, suggesting a link farm or SEO poisoning tactic. The primary URL, 'https://leonvi.ru/strik?utm_term=best+exercises+to+strengthen+piriformis+muscle', is presented as a legitimate resource but likely serves as a gateway to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9618

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 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.
  • 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://leonvi.ru/strik?utm_term=best+exercises+to+strengthen+piriformis+muscle PDF link annotation
    • https://palukenibimel.weebly.com/uploads/1/3/4/4/134401756/liforadojemoz_pegejokisiraj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458122/normal_5ff82867bf787.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377125/normal_5fce95c92c759.pdfIn PDF document text
    • https://xudekumuf.weebly.com/uploads/1/3/2/6/132681038/7696667.pdfIn PDF document text
    • https://zisidolig.weebly.com/uploads/1/3/1/3/131379992/8184673.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446633/normal_5ff9baf69de47.pdfIn PDF document text
    • https://vovavurag.weebly.com/uploads/1/3/0/7/130739927/7a210d1874898ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393488/normal_5fd795904e091.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375086/normal_5fdc3268643d0.pdfIn PDF document text
    • http://zugapuvu.mywebcommunity.org/93250149255.pdfIn PDF document text
    • https://zizusufake.weebly.com/uploads/1/3/4/6/134646877/toxuwuvilipej_zakopi_numul_tamopejuwab.pdfIn PDF document text
    • https://gupebaxederor.weebly.com/uploads/1/3/4/6/134691072/fologusekabawis.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/cleapss_safety_sheets_sodium_hydroxide.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/aprendizaje_colaborativo_libros.pdfIn PDF document text
    • http://lumosaneja.onlinewebshop.net/wawema.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/wojumi.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/dizugajabukugidupugoxub.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/ansi_c_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/rubber_sheet_manufacturers_in_agra.pdfIn PDF document text

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