Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c6c0c72a628713b…

MALICIOUS

PDF

100.6 KB Created: 2021-03-29 00:38:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89254fcdba075d9f322bd2e74284a08b SHA-1: 60f56dd8db7082a819748f59ec2a7e9349f56c1c SHA-256: 1c6c0c72a628713b9cbbafaa6ed847bbd1a668573f3f96602eb052d5afc8624f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external links, with one heuristic specifically identifying a 'PDF_SEO_LINK_FARM' suggesting a large number of outbound links. One of the extracted URLs, 'https://gimoguvi.ru/aws?utm_term=what+do+the+colors+of+the+santa+muerte+mean', appears to be the primary lure, disguised as information about Santa Muerte. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest it's designed to redirect users to potentially malicious websites, likely for phishing or scam purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9503

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gimoguvi.ru/aws?utm_term=what+do+the+colors+of+the+santa+muerte+mean
    • https://vurineju.weebly.com/uploads/1/3/2/7/132741272/faxisikigukosir.pdf
    • https://zifalopo.weebly.com/uploads/1/3/1/3/131379769/354624.pdf
    • http://wekeb.space/49531308338b8v6p.pdf
    • http://xomutukegadoj.mypressonline.com/vector_product_of_two_vectors.pdf
    • https://mixozanuzobese.weebly.com/uploads/1/3/5/4/135400893/munawevejitadineb.pdf
    • http://lalashoppen.online/533507465751e17r.pdf
    • https://wisatevifo.weebly.com/uploads/1/3/0/7/130775851/ribonifotogesa.pdf
    • http://afracheat2.xyz/36170655549jn84.pdf
    • https://kigazapaxulet.weebly.com/uploads/1/3/0/7/130774964/9191098.pdf
    • http://mybatut.store/lijawawogawisadir73kst.pdf
    • http://vekisofekibote.myartsonline.com/model_bye_laws_2020.pdf
    • https://uploads.strikinglycdn.com/files/ef4bcbb3-b797-4285-a804-31a6c8330994/tizemarenowewir.pdf
    • https://968bac2e-1409-45a7-bd11-2c37eba47390.filesusr.com/ugd/c81504_a59ecf3a160845728c2ea9e5665c4506.pdf?index=true
    • https://9579f988-9383-433c-acf3-5fff76e0c882.filesusr.com/ugd/191a6d_e28be668789542509ec1e1c4af9f920c.pdf?index=true
    • https://uploads.strikinglycdn.com/files/1492da2d-19e1-4db0-873e-9a918e30920b/59662627441.pdf
    • https://uploads.strikinglycdn.com/files/aefd6e06-1f56-471e-93d3-218e574a1e3e/codependents_anonymous_literature_online.pdf
    • https://uploads.strikinglycdn.com/files/acce4077-b884-4d2e-a8f8-f0a57396a6f5/93778098217.pdf
    • https://2791e1c6-719d-47aa-bdc5-1556df251b63.filesusr.com/ugd/7757c5_39441e9edf4144cb9c10ba3c426f6bad.pdf?index=true
    • https://uploads.strikinglycdn.com/files/3992b7df-2575-4c61-b025-33aa729c544d/xetuguvigupajinavupavuja.pdf

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