Malicious PDF — malware analysis report

Static analysis result for SHA-256 17ce29b649bcf8db…

MALICIOUS

PDF

62.9 KB Created: 2020-10-16 12:13:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e8f765c73716dfe21a5fbf8e38411a45 SHA-1: 5e7a8a5a8e2e257739b9ec2c989b1d3e6ed38566 SHA-256: 17ce29b649bcf8db7bb3fe2e53d1a00862a59c34dddf54bc1105e1a296fd7fa8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'manual tecnicas pnl pdf' and a URL that appears to be part of a link farm or SEO manipulation scheme. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9612

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://gettraff.ru/wb?keyword=manual%20tecnicas%20pnl%20pdf
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5f8910e56c7a4.pdf
    • https://cdn-cms.f-static.net/uploads/4366652/normal_5f89128608b67.pdf
    • https://cdn-cms.f-static.net/uploads/4365649/normal_5f8752c8c1d01.pdf
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f89477eb56a3.pdf
    • https://cdn-cms.f-static.net/uploads/4366348/normal_5f87c7b595d92.pdf
    • https://cdn-cms.f-static.net/uploads/4369763/normal_5f88bc365f070.pdf
    • https://cdn-cms.f-static.net/uploads/4366406/normal_5f878901e65ff.pdf
    • https://cdn-cms.f-static.net/uploads/4370987/normal_5f88cd3cb1d09.pdf
    • https://cdn-cms.f-static.net/uploads/4369161/normal_5f87f1c2c7d35.pdf
    • https://cdn.shopify.com/s/files/1/0268/8139/2827/files/project_samples_on_healthcare_claim_adjudication.pdf
    • https://cdn.shopify.com/s/files/1/0266/8734/0722/files/3rd_year_anniversary_gift_for_boyfriend.pdf
    • https://cdn.shopify.com/s/files/1/0432/1558/5448/files/dixitazimunogumuji.pdf
    • https://uploads.strikinglycdn.com/files/041d21a6-5bd2-43e4-b8c3-04eb17e9338b/78605589557.pdf
    • https://uploads.strikinglycdn.com/files/d2a47c46-1e1c-457a-b46c-89733f009ed3/65150818703.pdf
    • https://uploads.strikinglycdn.com/files/0f86de56-5f93-47a9-b972-b4b752c7e023/nekoxibadamo.pdf
    • https://uploads.strikinglycdn.com/files/3e5915ad-908a-4d78-aec0-59fc513326d3/bezegifutisoxi.pdf
    • https://uploads.strikinglycdn.com/files/ca5cc0ec-e7df-4dda-bd2a-e48a8f8f2ac2/78625446714.pdf
    • https://uploads.strikinglycdn.com/files/66c75971-6e9f-4bec-bfb6-1745d7f3ac25/sobaderuzepulugev.pdf
    • https://uploads.strikinglycdn.com/files/53d8901d-3f57-4cff-aaca-2a3f1fef2498/48122703114.pdf
    • https://uploads.strikinglycdn.com/files/39c928ac-880a-4986-9e6c-76e3fa73110e/40856558572.pdf
    • https://uploads.strikinglycdn.com/files/61bdd52a-9dec-421f-bc89-22591b29ffd2/5099571872.pdf