PDF malware analysis — malicious · 2ddfa4b6aa2db850

MALICIOUS

PDF

42.2 KB Created: 2020-09-03 17:25:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3e08aa419ac46a6db83aa144d43718b6 SHA-1: 40ba2c74070257574357eee785b6e6c3ea8cde5b SHA-256: 2ddfa4b6aa2db850b397760364e7e7d8f3325253e74a2c9ea6d66f0009d48aaf

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, which is also present in the document body. This link, 'https://ttraff.link/wix?keyword=tri+fold+brochure+template+free+indesign', is likely intended to lead the user to a malicious site. The file also contains a large number of external PDF links, many pointing to static.usrfiles.com, suggesting a link farm or SEO poisoning tactic to distribute the malicious content.

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=tri+fold+brochure+template+free+indesign
- https://static.usrfiles.com/ugd/de60da_210acb68f39f40039675622617104630.pdf
- https://static.usrfiles.com/ugd/b8c837_f43f09a6b1c24dfd8492277394a58f33.pdf
- https://static.usrfiles.com/ugd/ae15ca_34ba79bffad54d61b5b7e5e65f76bafb.pdf
- https://static.usrfiles.com/ugd/df73ab_3b5e4b72d57b40a5a1fe9e96975887d1.pdf
- https://static.usrfiles.com/ugd/c722c2_3eada360cc2f4f24aeb731f92c1deb25.pdf
- https://static.usrfiles.com/ugd/70c1f8_e930105858744cd0a4a83ad53eafbc9b.pdf
- https://static.usrfiles.com/ugd/e2c6c1_343b8d13acd042e9b9e8f67d10ed6008.pdf
- https://static.usrfiles.com/ugd/ee4a13_11a9d0234c4f4d9b87ee885e10bcca19.pdf
- https://static.usrfiles.com/ugd/5cf23b_b55e7edca9e64b09a75702ebfe447fa6.pdf
- https://static.usrfiles.com/ugd/1df9ea_fe2be8a2568343dbbaaa210eb9d155d2.pdf
- https://static.usrfiles.com/ugd/756799_ae584ceaf0d342aab687ae25a764e194.pdf
- https://static.usrfiles.com/ugd/69695d_53704d7bcf6848059ec9d18401e207fa.pdf
- https://static.usrfiles.com/ugd/35f767_04d2bd3c03cd45439c11a2af1bceaa03.pdf
- https://static.usrfiles.com/ugd/b8c837_6c0db040d4b84e08b5a1b5f7319341a1.pdf
- https://static.usrfiles.com/ugd/1decf9_b76b675cd25348d0babec7aae1cf5bd1.pdf
- https://static.usrfiles.com/ugd/1849a1_9ce8c424f361416196723808b84194c8.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_off0000670d.bin` `fc8364b3d45431af85820cb49712a2673f49cf7b8e156e33de0b26e59e9e659f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x670D	5660 bytes
`font_01_sfnt_off00007a15.bin` `bf610a590c5fa011b2960eb51e2a2436a8ef8a24945418bd4eb16dd3ea6ae921`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A15	9768 bytes

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