PDF malware analysis — malicious · a5c47ddef9b88473

MALICIOUS

PDF

39.4 KB Created: 2020-08-29 18:21:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7dd2d806f1debd6c494a42a63649015f SHA-1: e69da36a23a1100158e5f491ecaad1a4a9a2781a SHA-256: a5c47ddef9b88473c4e36b48a508009d614a5f8734358d17784a902a1137d9bb

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, specifically pointing to 'https://ttraff.ru/wix?keyword=pokemon+nuzlocke+rom+nds'. This URL is presented within the document body, suggesting a social engineering tactic to trick users into clicking it. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to 'static.usrfiles.com'. The primary malicious URL is likely intended to redirect the user to a harmful destination.

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.ru/wix?keyword=pokemon+nuzlocke+rom+nds
- https://static.usrfiles.com/ugd/b7082a_50b113c2091043529978fe2674b89cde.pdf
- https://static.usrfiles.com/ugd/b8c837_e117eac58e9747daafcdd01f9042c3f9.pdf
- https://static.usrfiles.com/ugd/b8c837_9e4d68cb59ec4e08b0337687bd48d99e.pdf
- https://static.usrfiles.com/ugd/b8c837_73d299d862fd4e2e9863d1280a5e008d.pdf
- https://static.usrfiles.com/ugd/7baf93_c5fc5b38e2b247b7a8a676e316b59e96.pdf
- https://cdn.shopify.com/s/files/1/0431/7223/3380/files/63888810950.pdf
- https://cdn.shopify.com/s/files/1/0435/7203/5739/files/dsc_pk5501_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/6630/2374/files/gatatumolezawoti.pdf
- https://cdn.shopify.com/s/files/1/0431/8376/7713/files/63671679527.pdf
- https://static.usrfiles.com/ugd/b8c837_62b78e39804f440782b6e0176d7cc81b.pdf
- https://static.usrfiles.com/ugd/63d3ad_51087636c99142998a5a0180982e3bbd.pdf
- https://static.usrfiles.com/ugd/2e79a6_ed6e9000d93543b1872684f8040307cd.pdf
- https://static.usrfiles.com/ugd/a1fb72_30f0b2c6a0ac41f8a9a222232398e0d5.pdf
- https://static.usrfiles.com/ugd/1f2646_6a25ba721d2843b0ab51a0128b99494d.pdf
- https://static.usrfiles.com/ugd/b8c837_741273a2249342bf9de31be1a1f09d25.pdf
- https://static.usrfiles.com/ugd/b8c837_7b45f645a8f446e1a05ee991c4a83db5.pdf
- https://static.usrfiles.com/ugd/b8c837_b5b28534d826456db19f75b76b90f09a.pdf
- https://static.usrfiles.com/ugd/191a6d_7190361f73f642c5ae84b39e90840e96.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_off00005d04.bin` `42c72fde5ab4fd75cce54479d41f75d2a000beaa371a87fd3e00aacbde6be32b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D04	4992 bytes
`font_01_sfnt_off00006def.bin` `41d05d164d3e75fffe603713dd2b04a1a059b860433b0b9d0b4b191393e3bc87`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6DEF	10192 bytes

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