Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b6dedc7f46a5566…

MALICIOUS

PDF

42.9 KB Created: 2020-09-06 11:45:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fab9ced3905a8745c8f39b020ac2f0d SHA-1: 7fa76cc3d0005daa1f1b07efc239f435e644de82 SHA-256: 4b6dedc7f46a55668edfeca7931b4a366e044c2bad44f64e4dccff49f230d7d8
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'ttraff.club'. This URL is presented within the document body, disguised as a search result for 'bruce h lipton biology of belief pdf'. The file also contains a large number of embedded links to 'static.usrfiles.com', which is flagged as a link farm. The primary malicious IOC is the redirector URL, which likely leads to a further malicious resource.

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.club/wix?keyword=bruce+h+lipton+biology+of+belief+pdf
    • https://static.usrfiles.com/ugd/f9d4cd_39f0d624e5ed4c5284dca3c026967c42.pdf
    • https://static.usrfiles.com/ugd/96bf9d_a2ff7e1d98c84ccdad6d312547ad31a9.pdf
    • https://static.usrfiles.com/ugd/fef806_1b70297dc2704fee98470bef57ed5484.pdf
    • https://static.usrfiles.com/ugd/30e015_021fb3dd35ab4b7cad8149c3d8b17a06.pdf
    • https://static.usrfiles.com/ugd/868b90_a7db2fb0c25c4f64854fd9fc55cc3240.pdf
    • https://static.usrfiles.com/ugd/136d07_30863c8606f14a0ba39b9e418105ab56.pdf
    • https://static.usrfiles.com/ugd/87a178_ea96b8b92e4e4c1897b51b2a5e803d17.pdf
    • https://static.usrfiles.com/ugd/b3bc21_0b29119b5ffe47d3858b5ee8c78f6255.pdf
    • https://static.usrfiles.com/ugd/8dde66_b777e8d4d46e415e95d0051ccf5a69cc.pdf
    • https://static.usrfiles.com/ugd/e5cbe5_05d9f66f852c440f975a3a20752dfabf.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_72193e77cbcf419a89d543dadd10a12a.pdf
    • https://cdn.shopify.com/s/files/1/0435/8370/1155/files/80714868373.pdf
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/bivufibawowevafunibidig.pdf
    • https://cdn.shopify.com/s/files/1/0433/1051/4334/files/83339545474.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/
    • https://static.usrfiles.com/ugd/136d07_30863c8606f14a

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069ca.bin
1e2dff4004c7cc66940672408923bcdf73ebe3e7759ddf2d1f983b8e20e87172		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69CA 5320 bytes
font_01_sfnt_off00007be6.bin
7b97431a1fd8674ee48ee45ddfc9cc0042c60a59ba85caaeb70ed2c92c1a410f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE6 10232 bytes

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