Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f4f6aa2deeb607…

MALICIOUS

PDF

39.4 KB Created: 2020-08-16 18:30:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aaf1c829172fe99ddb2baf35d320a6f9 SHA-1: 4150cd4c3f5aebe8a6d7703c8f031be931d4d6a1 SHA-256: 98f4f6aa2deeb607790dc6c84bfe808d4c50ec3935c1256104a686f53c15b2b7
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The presence of numerous embedded links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility and click-through rates. The ML classifier also strongly flagged this PDF as malicious.

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.com/pify?keyword=pros+of+school+uniforms+articles
    • http://jinalalol.pomegranatelooms.com/uploads/1/3/1/1/131164392/zoxefebore.pdf
    • https://cdn.shopify.com/s/files/1/0437/3312/3221/files/riranijatinolirapiji.pdf
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/75335546827.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/95028250864.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/4279930290.pdf
    • https://cdn.shopify.com/s/files/1/0438/4089/7189/files/calendario_2020_escolar_2020_madrid.pdf
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/37675906083.pdf
    • https://cdn.shopify.com/s/files/1/0438/5721/5648/files/allison_1000_transmission_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/1188/2653/files/71331321769.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90685913575.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/pezut.pdf
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/jegagepubipurunisal.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_off00005f4c.bin
6c58cc9f4cddae71c23c8447a74fcbd3e0aca833c574ee3550d05fa3e9123de2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4C 5124 bytes
font_01_sfnt_off00007081.bin
271b8813cfea72ebbc26812dae6869a1ea0816486f272ec2491ef79aadf2c859		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7081 9640 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.