Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe5a458800e4b725…

MALICIOUS

PDF

40.2 KB Created: 2020-09-01 05:01:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03c34286a58128b4cdc6fe15a1d5d3f6 SHA-1: f1f2689f7a46cf93765223379165fd17e3a6f3cb SHA-256: fe5a458800e4b725236da6ae8bab99ed0de35f569451ba21566bcf8075780104
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or scam attempt. The document body, though partially corrupted, suggests a lure related to a 'betting guide'. The presence of numerous external links, many pointing to Shopify and static.usrfiles.com, suggests a link farm or SEO poisoning tactic to distribute the malicious content. No scripts were extracted from this sample.

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/pify?keyword=ny+post+bettor%2527+s+guide+week+3
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sakumuxapiwitisozu.pdf
    • https://cdn.shopify.com/s/files/1/0463/0183/9522/files/86595364708.pdf
    • https://cdn.shopify.com/s/files/1/0432/7453/5067/files/west_bend_public_library.pdf
    • https://static.usrfiles.com/ugd/e02969_3a16a25d3b1045a0b574f00b77e5afa8.pdf
    • https://static.usrfiles.com/ugd/8b9728_40a4db2ba2ef46a493059f2c318eb85e.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_efbf41c50f844a6b9819de840e262667.pdf
    • https://static.usrfiles.com/ugd/738632_81ea8edd5e6d4136b3b606a38780ce94.pdf
    • https://static.usrfiles.com/ugd/76b6de_e5038d3d4875484084ac6c765effd5ea.pdf
    • https://static.usrfiles.com/ugd/db93e9_5107bcfc68764877892f5d79454228b4.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/59035669276.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/axis_mutual_fund_new_nach_form.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_off00005f22.bin
2d330e07fd07416c2b9cf2d03a0d8180a7b016610f2d428893c4e1f186ac2314		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F22 5448 bytes
font_01_sfnt_off000071ec.bin
cc0af32b20849b1afe7f8f8034b71285f2118567e368bfa8b56259626683c7a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71EC 10076 bytes

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