Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e69fc82bbe552df…

MALICIOUS

PDF

43.6 KB Created: 2020-08-29 17:47:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06e5dd3d30d77d0a15249397ad7f7a91 SHA-1: d7c7b50df934dae6a75a838892cd333d43a783c0 SHA-256: 4e69fc82bbe552dff65bd2a61c1800f4a577e6dd4c13a7cb1a6168609aae5850
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a link farm. One of these links, https://ttraff.cc/wix?keyword=eagles+peak+rs07, is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting an attempt to direct users to malicious content or engage in SEO poisoning. 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.cc/wix?keyword=eagles+peak+rs07
    • https://cdn.shopify.com/s/files/1/0433/4636/2523/files/melilemiludip.pdf
    • https://cdn.shopify.com/s/files/1/0437/9151/5809/files/53719301200.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/35346514151.pdf
    • https://static.usrfiles.com/ugd/08fe48_eecb0681367e40339cc1ac5422d99f4d.pdf
    • https://static.usrfiles.com/ugd/b8c837_f86210dab46140d2aa205a30258b3991.pdf
    • https://static.usrfiles.com/ugd/b8c837_3d92bc9f4daa4d878bcc42df02d6ec80.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f9a8776b2b6404994a48ea1ae0a31d8.pdf
    • https://static.usrfiles.com/ugd/b8c837_cdfc22dafde64875ada98deafc55b3ca.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a851a74a53b45f8a8fd7740b32aac76.pdf
    • https://static.usrfiles.com/ugd/b8c837_66acace23f7948cab8c857045f26fa7b.pdf
    • https://static.usrfiles.com/ugd/b8c837_67e7acd4ca64447d8afb699521dc813a.pdf
    • https://static.usrfiles.com/ugd/b8c837_e3827d2f22e747abb5cf2996a32983b1.pdf
    • https://static.usrfiles.com/ugd/b8c837_a9b238016fc24d2ca61a274b4c7a0ff0.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006041.bin
f5279678b0371f2c173678981188a08a5a9067ffb6332235d4175c874c6ba4f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6041 4672 bytes
font_01_sfnt_off00007034.bin
d7642554c8bf6b6415e800f8e9ffb7d186a5d5f597e5f971616058d568c23bc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7034 10440 bytes
font_02_sfnt_off000093b6.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93B6 4324 bytes

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