Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddc5fdc3bb8de50d…

MALICIOUS

PDF

35.1 KB Created: 2020-09-02 23:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9dd71d5c8f3c3b7f85f183534f8c2cca SHA-1: f385da505aa65ea1b8ec527b26b54064fd467708 SHA-256: ddc5fdc3bb8de50dc15f1bb781b4f9e50d91be97ecc051f2784743c83faa0849
150 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to the redirector, which is disguised as a hack for 'My talking angela 2'. The PDF also contains a large number of embedded links, many pointing to Shopify domains, likely as part of an SEO link farm to improve search engine ranking for malicious content. The primary attack vector appears to be social engineering, luring the user to a malicious site.

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.me/wix?keyword=my+talking+angela+2.+0.+1+hack
    • https://cdn.shopify.com/s/files/1/0433/4492/0726/files/descriptive_research_design.pdf
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/nba_injuries_report_updates.pdf
    • https://cdn.shopify.com/s/files/1/0437/1768/9498/files/61161652873.pdf
    • https://cdn.shopify.com/s/files/1/0431/2806/2109/files/jiretirererigolam.pdf
    • https://cdn.shopify.com/s/files/1/0434/5335/0040/files/87803162134.pdf
    • https://cdn.shopify.com/s/files/1/0431/5778/2690/files/chick_fil_a_application.pdf
    • https://cdn.shopify.com/s/files/1/0435/0600/8216/files/mukopabonuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/8729/7696/files/nawafivalu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/fiwugawise.pdf
    • https://cdn.shopify.com/s/files/1/0457/0533/0844/files/sofuzawasaf.pdf
    • https://static.usrfiles.com/ugd/ab922d_13580f566db74315a7e7041330f337dd.pdf
    • https://static.usrfiles.com/ugd/4c1554_6385a738b3b54ad49aad2160675a9e9c.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_e59cc1e9c353473cbf3f697998af4d7d.pdf
    • https://static.usrfiles.com/ugd/e3ff21_8a124981949f4cc080039c1f4056f830.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_off000048fc.bin
606a9dc607498326f9d89e59e5d402dbe66a4807f3a9ff60bd9888db813f1d33
pdf-font-stream PDF embedded font (sfnt) at offset 0x48FC 5316 bytes
font_01_sfnt_off00005b38.bin
a1aa7998ce3cf16595f01e79b3f9411581437695583e731124788a8448eb0e32
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B38 10668 bytes