PDF malware analysis — malicious · e82e3bd2e7ae8a4b

MALICIOUS

PDF

40.7 KB Created: 2020-09-20 03:08:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 76214e30dbb87155387322c14cb213ca SHA-1: 283d628f82ef776fde34fb7fa6db6a6c7c00212f SHA-256: e82e3bd2e7ae8a4b7a62fab4d3e6211f1cde4fa07cc30b62ccb1af8bc49a4ed3

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a PDF link farm. One of these links, 'https://ttraff.club/wix?keyword=berkeley+2020+graduation+date', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious content. The presence of multiple Shopify URLs, while marked as benign, indicates a pattern of using legitimate-looking hosting for potentially malicious content distribution.

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=berkeley+2020+graduation+date
- http://vadixe.lightningstalkerphotos.com/uploads/1/3/1/8/131856713/mudara.pdf
- http://tazolox.gofitmama.com/uploads/1/3/0/8/130814297/mezobodugu.pdf
- http://nakegega.eatbigshitbig.com/uploads/1/3/1/1/131164250/2571132.pdf
- https://cdn.shopify.com/s/files/1/0462/1788/7898/files/lumegewokewozeviso.pdf
- https://cdn.shopify.com/s/files/1/0432/0781/9422/files/64695533998.pdf
- https://cdn.shopify.com/s/files/1/0438/7209/2315/files/amelie_waltz_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0481/5178/9717/files/49647094790.pdf
- https://963c984b-3b75-4da7-b9e5-04afac585ce6.filesusr.com/ugd/2f8cea_b1ae90c02e70495f93461e8d71ff5e48.pdf?index=true
- https://619a54a0-981e-4d8f-bf18-5e083327a549.filesusr.com/ugd/d4a9d6_d0d8634b9456428e83306e34dd6268a3.pdf?index=true
- https://404dd6fb-cb42-428a-bdec-a2451c6d8ac7.filesusr.com/ugd/d43733_e1a55025e298472cba8fd525a5205ecd.pdf?index=true
- https://0616729a-b8d0-4d58-86e2-4e4b30661e80.filesusr.com/ugd/204f4f_a3bfe84bc82045a7aa094bbeb63f0086.pdf?index=true
- https://6d08ecc4-8799-4c24-badd-b452ced6e288.filesusr.com/ugd/dcf311_1ab676372dc3467db1b2e9aed5f2d521.pdf?index=true
- https://cb3a7da1-bde2-4fd0-a480-badab149521e.filesusr.com/ugd/062c90_b09fe2438969405882415bb5e9fd7e2c.pdf?index=true
- 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://6d08ecc4-8799-4c24-badd-b452ced6e288.filesusr.com/ugd/dcf311_1ab676372dc3467db1b2e9aed5f2d521.pdf?index=

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005fd8.bin` `891334dc0648b143d54c08563b913450b2c049d291a6aa3b022f130a00d2462b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FD8	5304 bytes
`font_01_sfnt_off00007202.bin` `e8fba45ef219a3dfabbd21ee2343f3407cc7a1a4d528d5bcb4fe980df5eabe5e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7202	10488 bytes

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