Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d26e69f8c39bad7…

MALICIOUS

PDF

15.5 KB Created: 2020-10-15 00:14:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 67a46a1be8aeb2c1ea11574358c4c6c4 SHA-1: 960ba1063001c3752fe18ee8a47213846de043ed SHA-256: 5d26e69f8c39bad74823778aea4b790333b2733450ad063a92e6d205be7100c9
202 Risk Score

Malware Insights

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

This PDF is designed as a lure, using a seemingly innocuous title to hide malicious links. It contains a large number of external links, many pointing to disposable hosting, and one critical link to a known malicious redirector infrastructure. The document's structure and content strongly suggest it is part of a phishing campaign aimed at redirecting users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 15 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.
  • 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://gettraff.ru/strik?keyword=alfabeto+tailandes+completo+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_5f87320e9a9ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f87698900ed6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f8731cfab57c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366371/normal_5f87687d36c41.pdfIn PDF document text
    • https://site-1043844.mozfiles.com/files/1043844/pitisugovadotafoj.pdfIn PDF document text
    • https://site-1036925.mozfiles.com/files/1036925/badururavurivagasewo.pdfIn PDF document text
    • https://site-1043571.mozfiles.com/files/1043571/magejofepuwabujeviw.pdfIn PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/eac85730fb56439.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/1a27643b41869.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/1000608.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/4328668.pdfIn PDF document text
    • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/5162005.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/jewilometok.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/7093334.pdfIn PDF document text
    • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/xodasoniroduga.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/ff06dfdf.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/xekena.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/dukojalevivemi.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/vepulakanug.pdfIn PDF document text
    • https://site-1039261.mozfiles.com/files/1039261/36156105628.pdfIn PDF document text
    • https://site-1048253.mozfiles.com/files/1048253/jamidi.pdfIn PDF document text
    • https://site-1040178.mozfiles.com/files/1040178/76107172532.pdfIn PDF document text

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