Malicious PDF — malware analysis report

Static analysis result for SHA-256 24dd4fcaf667c4ba…

MALICIOUS

PDF

26.6 KB Created: 2020-10-18 22:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3696febf2f37f221c1e20621ea488c76 SHA-1: 7a992fe9227eb5d8e1e34ab6d1290f7b5420eb0a SHA-256: 24dd4fcaf667c4ba016388d79142e40a842eba019a07e018fc27ad03b8596703
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, including one pointing to known malicious redirector infrastructure. The heuristic firings indicate this is a malicious redirector and a link farm, suggesting the primary purpose is to drive traffic to potentially harmful sites. No scripts were extracted, but the embedded links are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

Heuristics 3

  • 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.
  • 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://ttraff.club/123?keyword=the+joy+of+romantic+piano+pdf
    • https://paduxadoduxim.weebly.com/uploads/1/3/0/7/130775016/firimi-mavizudinafe.pdf
    • https://sozivutapadonen.weebly.com/uploads/1/3/1/1/131164462/8417836.pdf
    • https://mapipuluzobeb.weebly.com/uploads/1/3/1/3/131398440/takedemitukuzi.pdf
    • https://lulitetuxopibol.weebly.com/uploads/1/3/1/1/131164377/2002594.pdf
    • https://cdn-cms.f-static.net/uploads/4382771/normal_5f8bad6dbb781.pdf
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f88005961deb.pdf
    • https://cdn-cms.f-static.net/uploads/4370273/normal_5f8b39561690c.pdf
    • https://cdn-cms.f-static.net/uploads/4369935/normal_5f8964acc6fca.pdf
    • https://cdn-cms.f-static.net/uploads/4379229/normal_5f8b25c2c339b.pdf
    • https://cdn-cms.f-static.net/uploads/4366628/normal_5f87246fc3bb9.pdf
    • https://cdn-cms.f-static.net/uploads/4366401/normal_5f8a69049ceeb.pdf
    • https://cdn-cms.f-static.net/uploads/4365642/normal_5f875fca7502e.pdf
    • https://cdn-cms.f-static.net/uploads/4373519/normal_5f8c70bf1228a.pdf
    • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/3894851.pdf
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/8ca522c.pdf
    • https://mixorone.weebly.com/uploads/1/3/1/4/131438240/xugenisefomosamiz.pdf
    • https://sonilotosoj.weebly.com/uploads/1/3/1/3/131379329/9027042.pdf
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/juzuse.pdf
    • https://uploads.strikinglycdn.com/files/d40d0367-b85e-41ef-b388-03305ba32a33/91585437128.pdf
    • https://uploads.strikinglycdn.com/files/41babeb3-3e55-4d22-a14e-67a5ee102557/poema_sor_juana_hombres_necios.pdf
    • https://uploads.strikinglycdn.com/files/b21c233b-7d8c-4fad-84dd-0efa3ee4d22a/vevagepobegelexugojome.pdf
    • https://uploads.strikinglycdn.com/files/43b535a6-9381-4895-ac45-496f3f52305e/xilaxuvakimesitam.pdf
    • https://uploads.strikinglycdn.com/files/38848c88-89c2-4be7-93b4-b68af8ce32de/zapuvipilapo.pdf

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