Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee40c5adf98e636…

MALICIOUS

PDF

47.6 KB Created: 2020-08-29 17:13:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a72f2aa941f4b8d122bb75216255902 SHA-1: dcae7936a7f3b7d97034278f1d290e0b37c657ce SHA-256: eee40c5adf98e636228a277e369538e408040af07f6ddfd904ad2c5e2e4b226b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.link/wix?keyword=the+rose+that+grew+from+concrete+poe'. This indicates the document is designed to lure users to a malicious site. The presence of a large number of embedded links, many pointing to Shopify and usrfiles.com, suggests a link farm or SEO poisoning tactic to obscure the malicious redirector. No scripts were extracted from this sample.

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.link/wix?keyword=the+rose+that+grew+from+concrete+poe
    • https://cdn.shopify.com/s/files/1/0430/9535/9641/files/73964961004.pdf
    • https://cdn.shopify.com/s/files/1/0436/9770/1017/files/situbokutugafixit.pdf
    • https://cdn.shopify.com/s/files/1/0439/8471/5934/files/reading_comprehension_for_grade_7_students.pdf
    • https://cdn.shopify.com/s/files/1/0433/9479/3630/files/types_of_blanching.pdf
    • https://static.usrfiles.com/ugd/b8c837_69eacfa2fd24478ab8177c7c07243d6e.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1c55af24b0a4521af701ff3025378bd.pdf
    • https://cdn.shopify.com/s/files/1/0432/3636/0351/files/gupugunoziwujexelurar.pdf
    • https://cdn.shopify.com/s/files/1/0433/9970/8821/files/bible_quiz_on_luke.pdf
    • https://static.usrfiles.com/ugd/fd3290_c1d32bd619704fc3b537c08cd0d3a036.pdf
    • https://static.usrfiles.com/ugd/b8c837_83c48d43239c4d2bab577530a053b922.pdf
    • https://static.usrfiles.com/ugd/b8c837_53dc5c50d03d4dca8048a1457711c668.pdf
    • https://static.usrfiles.com/ugd/3aca14_1cdf46176b994c968d4b25d348b3a9e5.pdf
    • https://static.usrfiles.com/ugd/b8c837_abffd63dda0b4bf8ad2058abcf4aeb5a.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_off00006d4f.bin
0ceab5a3399c05900f103a327a1c47586dde5525473f2556c6eae5efb4ca7a51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4F 5440 bytes
font_01_sfnt_off00007fc6.bin
262380f62d991e47564602ba8a4bd718737fe98ae400c3c6c0300bef74c18150		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC6 16592 bytes

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