Malicious PDF — malware analysis report

Static analysis result for SHA-256 4da7dce4360ca156…

MALICIOUS

PDF

137.6 KB Created: 2021-05-28 15:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 985bb74464c2aa3592d57e5daf24965c SHA-1: 330077cfbf202e090b96c3c0a3a4df544a3193cd SHA-256: 4da7dce4360ca156a63e5076ba510bebf2eaf7ed8094bbb3d430d5e9fe091aff
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous external links, a common tactic for SEO poisoning or phishing. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, with one pointing to 'golowaki.ru'. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8358

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://golowaki.ru/strik?utm_term=portal+primaria+tic+http+%252F%252Fbasica.primariatic.sep.gob.mx PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4405194/normal_5fca57721db21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463034/normal_5fd172af52572.pdfIn PDF document text
    • https://gobalubige.weebly.com/uploads/1/3/5/3/135339343/5486372.pdfIn PDF document text
    • https://garovinarabibaf.weebly.com/uploads/1/3/5/2/135293384/570821.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406166/normal_5ff0afb1e61b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489041/normal_5ffd53bb79b14.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365642/normal_5fddf8d519f5a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382621/normal_5fefaa04e2e02.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407084/normal_5fee833928ef4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461211/normal_600387a39b47e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474723/normal_601daf480d9bf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80b97be0-8714-4778-9d43-f3fea34471a8/runatokofepidulek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/273d6b7b-c244-41e3-9d2a-feac188a092b/9904380191.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a94e658-2802-4b28-8b08-cefb42e325a2/vutipuposavutaxiguwowo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13d12a88-1c42-43bd-84aa-5c879d383c4d/yard_machine_riding_lawn_mower_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55d76e85-e843-4133-a6dc-0be100129508/witizaxetikenap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bea9f99-f828-4796-a563-c8e67a082808/wapemofasajibole.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9cb8e72-24c3-45e3-90bf-66b734461a47/60121879268.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88bdb8e3-73b8-4d73-9bf3-fe38cc370873/dilapimidaliwaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e233efe-a1a1-4452-9cd5-a88f1d6bf868/89646958936.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58e11278-f7cb-4fac-be4c-52f0a53c8b41/soundlogic_xt_bluetooth_rechargeable_true_wireless_earbuds.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72a39c3c-3712-43bd-becd-58d731294511/time_management_tips_videos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3777c7e9-970a-463f-ad36-1735a6173643/xitumedotojuroxuzemufino.pdfIn PDF document text

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