Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a4b8e1630adaf5b…

MALICIOUS

PDF

100.0 KB Created: 2020-11-10 04:41:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d77dd806935123233270ddebe938fc34 SHA-1: 593fd7bd1a72b76108fb221fdede0a539eaa64f7 SHA-256: 8a4b8e1630adaf5b5c779b1aa23c05279ae5d64bf9b15d3e47036281f173d924
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. Although no scripts were extracted, the presence of an external URI suggests the document's purpose is to redirect the user to a malicious site, likely for phishing or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8149

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/strik?keyword=the+5+tenets+of+critical+race+theory
    • https://cdn-cms.f-static.net/uploads/4384301/normal_5f8fa838462dc.pdf
    • https://cdn-cms.f-static.net/uploads/4411937/normal_5f95b095b8f00.pdf
    • https://cdn-cms.f-static.net/uploads/4375358/normal_5fa9e77e0a27e.pdf
    • https://cdn-cms.f-static.net/uploads/4369315/normal_5f92e20211280.pdf
    • https://cdn-cms.f-static.net/uploads/4422180/normal_5fa49e4c71a7e.pdf
    • https://cdn-cms.f-static.net/uploads/4373778/normal_5f93c9b697e99.pdf
    • https://cdn-cms.f-static.net/uploads/4390995/normal_5fa76311b6281.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/paropabaru/artio_smite_guide.pdf
    • https://s3.amazonaws.com/labitajaxatufib/mutazeda.pdf
    • https://s3.amazonaws.com/tawovojo/kamufanebipagitip.pdf
    • https://uploads.strikinglycdn.com/files/c744231c-c1a9-4e72-92e7-b2de1e71454c/14766924722.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001561b.bin
2a7bbf636dff29f8408f0816042b60358e5dd97ed0f3cd3deb1124bf923edb98
pdf-font-stream PDF embedded font (sfnt) at offset 0x1561B 4932 bytes
font_01_sfnt_off000166e0.bin
de06a3b7285971cdb8487e24440e6d8d093bdc4e23b5713de8a101d18eeb449c
pdf-font-stream PDF embedded font (sfnt) at offset 0x166E0 12760 bytes