Malicious PDF — malware analysis report

Static analysis result for SHA-256 da0721534137fc6e…

MALICIOUS

PDF

63.6 KB Created: 2020-10-16 09:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 72e2a1d8bf56ee2e200f691936a3c674 SHA-1: 77275f1c38abf2877bcc113f2b3e3eb839830bb9 SHA-256: da0721534137fc6e898a1de5b5c494fbcc390e6a4b35008399c40b30fffae7b5
182 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to disposable hosting or redirector infrastructure. The primary malicious URL identified is 'https://gettraff.ru/wb?keyword=idle%20wizard%20necromancer%20guide', which is flagged as a malicious redirector. The document's structure and content suggest it is designed to lure users to external sites, potentially for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9739

Heuristics 4

  • 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.
  • 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/wb?keyword=idle%20wizard%20necromancer%20guide In PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/luloxanibi.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/gegakunagakamet-wipumidujo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368962/normal_5f87f8ec060a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368750/normal_5f890dbd72f9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366346/normal_5f87d28e6c24b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366339/normal_5f8730ad197c2.pdfIn PDF document text
    • https://vimiwegom.weebly.com/uploads/1/3/0/7/130775837/8995262.pdfIn PDF document text
    • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/bododuxesotifi-wobavenizegu-doloku-pusodud.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/5591919.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/pejajofedaxevaw_kozadesupuke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76e05c1e-0d9d-4f34-a761-4539aeac2f87/wilemabopiwiropawudenozaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70103515-2ff4-4920-ac7b-a05406c75ac4/23603533762.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2260cba8-83e9-4aa8-a6a0-7e6039b11723/gapijotifose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7477/3694/files/vezijezoxafalixovaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5930/4858/files/kimball_vs_inmon_vs_data_vault.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9462/9786/files/94112623765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19dc633a-cacb-4930-a8b2-f03d21b562e7/wevajiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/119b2f8c-1a60-4077-84cb-977587664ce3/23968171676.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/622a85f1-ac1d-4579-96d2-9920e47cff91/sobejizivilipexogeradiwo.pdfIn PDF document text

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