Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae8d42dd0d78c2b7…

MALICIOUS

PDF

40.0 KB Created: 2020-08-12 22:15:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af2a10849c92b813dcd141e25e5355d0 SHA-1: 6b4a368898d0105de1dac8c2684c3dc943de7e07 SHA-256: ae8d42dd0d78c2b7d6eafbd446cf6a0ef1cb62b5a78efb28e27624706315480d
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, likely to improve SEO for malicious content. One critical heuristic indicates a PDF link to a known malicious redirector, ttraff.cc, which is also present in the document body. This suggests the document's primary purpose is to redirect users to malicious infrastructure, disguised as a fitness worksheet.

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.cc/wb?keyword=fitness%20goal%20setting%20worksheet
    • http://files.wardlawandbrown.com/uploads/1/3/0/7/130775221/169494.pdf
    • http://nuxozoda.vanjavujicic.com/uploads/1/3/2/8/132814930/zozawupeb-rasofebada.pdf
    • http://files.lucerneinternationalfilmfestival.com/uploads/1/3/2/7/132740264/64c56462.pdf
    • https://cdn.shopify.com/s/files/1/0437/3122/2682/files/mulokulapub.pdf
    • https://cdn.shopify.com/s/files/1/0434/0944/0933/files/anny_duperey_le_voile_noir.pdf
    • https://cdn.shopify.com/s/files/1/0436/6604/7129/files/pogomijid.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89965927340.pdf
    • https://cdn.shopify.com/s/files/1/0436/9183/5546/files/lepizedonikiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/0974/4789/files/47077393826.pdf
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/8135811560.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tufajotojitumawudawemir.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/puvuge.pdf
    • https://cdn.shopify.com/s/files/1/0433/3250/1656/files/nuwageluk.pdf
    • https://cdn.shopify.com/s/files/1/0439/8389/6734/files/jitufutajubasogasitegoru.pdf
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/6085171921.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_off00005fbc.bin
3f87578a7a8bc16516f7748a9fa8e4cf907b71b6f1d5dbad493f49abc82c0c3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBC 5060 bytes
font_01_sfnt_off000070f9.bin
25f0109bc3fa00a7f8c7f2440fb0bdb77191a6bcb4f995e923eb4d65a7d0337a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F9 10036 bytes

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