Malicious PDF — malware analysis report

Static analysis result for SHA-256 c68b1f6fba94399c…

MALICIOUS

PDF

54.6 KB Created: 2020-08-31 18:44:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c68cbc3edf50e1fa4474ffb41a8318a SHA-1: 50978007cf71c25d85e6fea1554c3cc4789dac39 SHA-256: c68b1f6fba94399c5a7c2a8ba64ff8accc84238934a9bac1edf7ad78dbd7d81e
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF contains a link to a known malicious redirector infrastructure, specifically 'ttraff.club', which is designed to lead users to malicious sites. The document body, though heavily obfuscated, contains the same URL and text related to a product listing, suggesting a lure. The presence of a PDF link farm heuristic further indicates an attempt to distribute malicious content or drive traffic to suspicious sites.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=sheet+street+duvet+cover+sets
    • https://static.usrfiles.com/ugd/9eb187_b674fbe6a6094208a15266b3a8a6d927.pdf
    • https://static.usrfiles.com/ugd/b8c837_daf19fcac2db436ea35687abfd1b73ee.pdf
    • https://static.usrfiles.com/ugd/b8c837_ac1f4fb9224c400290d49ce88d731478.pdf
    • https://static.usrfiles.com/ugd/837d34_28c4f7c8402b4805836facc9427f105e.pdf
    • https://static.usrfiles.com/ugd/3e9e83_217cf7ee07114c07b819a288c6e346f8.pdf
    • https://cdn.shopify.com/s/files/1/0435/4175/8101/files/putebuso.pdf
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/tuvikajijozujidi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/xajesabomajulago.pdf
    • https://cdn.shopify.com/s/files/1/0434/5312/0664/files/52997314294.pdf
    • https://static.usrfiles.com/ugd/b8c837_32d47a91b14d43c08ea441775ec92836.pdf
    • https://static.usrfiles.com/ugd/aef5b7_c250ae47a2d64a02bf31b7025d1f8173.pdf
    • https://static.usrfiles.com/ugd/36f25b_47e31f30ee04473b9fb4e157f7d4dbb3.pdf
    • https://static.usrfiles.com/ugd/e3ff21_22c48247c8c942048f2fedf16b5355ef.pdf
    • https://static.usrfiles.com/ugd/628a76_e9bb8ccec845435dbd1a5ca5e7a1fc1b.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_off000098fb.bin
af1df5faff4efd0a7536f85c942c50388022249f2ac627f322c3fe645b7202cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98FB 4948 bytes
font_01_sfnt_off0000a9d1.bin
06ee26726bc58ee9e61b0988cafb6225457e3a794a97e9e927ee95289c84977c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9D1 10392 bytes

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