Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f2f5803dc930857…

MALICIOUS

PDF

34.0 KB Created: 2020-09-10 16:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c149ba87aea99bd9c0fd6bddfd0436a SHA-1: 5f10e8496f6af77004f9c15fd1b7ba74ecb826a1 SHA-256: 7f2f5803dc930857f4cbb8b243d3e6acbb2e3600d1ea6b2c8e004b17e40b2b0c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a direct link to a known malicious redirector, disguised with a movie title. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the primary URL. The document body, though partially corrupted, contains the same movie title lure and the malicious URL, reinforcing the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ttraff.club/wix?keyword=bhakta+prahlada+kannada+full+movie+free
    • http://files.creativesimone.com/uploads/1/3/1/8/131858045/9256059.pdf
    • http://files.lyleactivitycenter.com/uploads/1/3/0/8/130814121/wolesoxepovimimadot.pdf
    • http://files.wildflowerenterprises.net/uploads/1/3/1/4/131484029/ad33fb45.pdf
    • http://files.intouchfr.com/uploads/1/3/2/6/132683000/wekejoxosebix_loxas_vapipuwewinodi.pdf
    • https://static.usrfiles.com/ugd/003b86_cc3c3f93351a44ad82cbbdecaadaa9ce.pdf
    • https://static.usrfiles.com/ugd/48f461_fa854b4dbf874d78a890f5d82e3c3ce2.pdf
    • https://static.usrfiles.com/ugd/8e7730_ff5188e98dce4e4b8f5245ed3aefc1d1.pdf
    • https://static.usrfiles.com/ugd/2f8cea_e04355aa6414436cbbe695a08558a384.pdf
    • https://static.usrfiles.com/ugd/4733ca_c831c244995a427087de57d8074f1cea.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85755015361.pdf
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/jiboxab.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047cf.bin
7b6f7d787f8466a747b26fce620cb52ab488e713dbf3d2e1a99f44d834684c56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47CF 5276 bytes
font_01_sfnt_off0000599f.bin
bf57650d81ff017691a75a8398441d16850c65c3d0861292e41a3f2666854b7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x599F 9800 bytes

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