Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf31ad6a2efe4064…

MALICIOUS

PDF

39.7 KB Created: 2020-08-30 15:17:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96d20206e7a2efcc7227f65f06b995a7 SHA-1: 523b6017b81ab3ba2cded937c9c9261000b204be SHA-256: bf31ad6a2efe406427536dde7b7acb2d643a254fe9f67eeb8d26f0690a47d8fb
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is used in a lure to download 'cisco packet tracer 7.2', suggesting a social engineering attack. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation to increase visibility of the malicious link. 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.com/wix?keyword=cisco+packet+tracer+7.2+download
    • https://static.usrfiles.com/ugd/7ff653_dea4270e5abc4e9f8a1621b207d2b278.pdf
    • https://static.usrfiles.com/ugd/ee6770_8bb506c4c3db48a18089c24d100ffb19.pdf
    • https://static.usrfiles.com/ugd/de3d83_9931042f3c534c0fb0bb745260ee45b2.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/logopazunu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3938/3971/files/mosfet_datasheet_n-_channel.pdf
    • https://static.usrfiles.com/ugd/269bb8_0708a7d8a5a741f991177a0bc9a25a4f.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5457bbe5509467abd543692feda57f7.pdf
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/bubizumunokorusowajeki.pdf
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/73249319257.pdf
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/renewable_energy_books.pdf
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/fudosaguxakifeputinapon.pdf
    • https://cdn.shopify.com/s/files/1/0431/5434/2042/files/worst_oil_filters.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_off00005d5c.bin
f9d5121dc5f4fe1e5d8074a74910a2fdfaab15cead85c5067e6b906b597e51d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5C 5372 bytes
font_01_sfnt_off00006fd7.bin
1b7d54d14b2c4fd81c9fa623dd278230e672b795249e86e5935c8df2d1b07b7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD7 10008 bytes

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