PDF malware analysis — malicious · 53cfeade36e6c67b

MALICIOUS

PDF

44.0 KB Created: 2020-08-04 19:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 404054586725f37a31d6a19fdab0fde8 SHA-1: 0fa69d6e73a0984410ed3e677c3f337d9c21c11a SHA-256: 53cfeade36e6c67bc45bfc10b24e3b9edfaa3dcde9f71a7adab62ecd262e285d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=business+dictionary+book+pdf', which is likely intended to lead the user to a malicious destination. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious URL.

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.com/pify?keyword=business+dictionary+book+pdf
- http://files.meridianbodycare.com/uploads/1/3/1/8/131857193/6976761.pdf
- http://files.wandapayne.com/uploads/1/3/0/7/130739567/e9f4b5f19c4877c.pdf
- http://files.psychiatricnursepratitionersofwarwick.com/uploads/1/3/0/7/130775249/nulenenatagozitik.pdf
- https://cdn.shopify.com/s/files/1/0433/2794/6904/files/moselufezaxux.pdf
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/32356583391.pdf
- https://cdn.shopify.com/s/files/1/0432/0195/3952/files/80957954714.pdf
- https://cdn.shopify.com/s/files/1/0431/9716/9824/files/aisi_420_steel.pdf
- https://cdn.shopify.com/s/files/1/0432/0978/5512/files/nikolobepovifaxatab.pdf
- https://cdn.shopify.com/s/files/1/0431/4107/1016/files/barisakun.pdf
- https://cdn.shopify.com/s/files/1/0430/5901/9927/files/vector_t_pose.pdf
- https://cdn.shopify.com/s/files/1/0431/2878/3002/files/57079214384.pdf
- https://cdn.shopify.com/s/files/1/0431/4837/8274/files/unifi_controller_raspberry_pi.pdf
- https://cdn.shopify.com/s/files/1/0431/3497/6157/files/64963058484.pdf
- https://cdn.shopify.com/s/files/1/0431/7662/4279/files/xovasabamibirikixiled.pdf
- https://cdn.shopify.com/s/files/1/0431/6394/3074/files/kopopuvijik.pdf
- https://cdn.shopify.com/s/files/1/0431/2550/6208/files/java_games_code_examples.pdf
- https://cdn.shopify.com/s/files/1/0434/4525/6352/files/wiliw.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006e01.bin` `d1e0b6adc47d5ccd9b73a7f97a824e301e1b95cd9cef25d5c170477bfca84f27`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E01	5472 bytes
`font_01_sfnt_off000080b7.bin` `136264271cd22eda1c54bc8db2e38bd0cc6f85eb323ae5e774aa168ba0afcd4b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80B7	10088 bytes

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