PDF malware analysis — malicious · ebc9c7da7a067d8c

MALICIOUS

PDF

54.7 KB Created: 2020-09-08 07:08:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7e2a6d730a048bf173d988094db5a8ca SHA-1: 19706fde6c2c865d772638e17d46c4fa58625119 SHA-256: ebc9c7da7a067d8c0945c5af9b5e5c92111f7ce1a8644edd13444ea267a989aa

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of the primary links, 'https://ttraff.link/wix?keyword=australis+software+photogrammetry', is flagged as a malicious redirector. The document body is heavily obfuscated but contains references to the same URL, suggesting a lure to external malicious content. No scripts were extracted, and the primary malicious activity appears to be link-based redirection.

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=australis+software+photogrammetry
- https://static.usrfiles.com/ugd/08e331_2dbed37ce68c4ea5a80d49beb8a1d10b.pdf
- https://static.usrfiles.com/ugd/bae0a0_7474c13c5d824c1ba613b20065537379.pdf
- https://static.usrfiles.com/ugd/1f6d71_c2151f145100439ebb509ec981e1db3c.pdf
- https://static.usrfiles.com/ugd/2f3ac6_c2432475cfcb40f1b833203b7dffe611.pdf
- https://static.usrfiles.com/ugd/6f53d7_e569d5c6646748e6a6a74b67e9a0482b.pdf
- https://static.usrfiles.com/ugd/724fb5_363ec4ef99fd46dd86a0bff8c2f5e9aa.pdf
- https://static.usrfiles.com/ugd/b8c837_59faa54f4929421b8ef1af17bd4c860f.pdf
- https://static.usrfiles.com/ugd/83d902_a66dd8bb01c04446a089304d82959bd7.pdf
- https://static.usrfiles.com/ugd/b4f0c6_2b799f93366d46bfa4a00ded0114f34d.pdf
- https://static.usrfiles.com/ugd/f0f215_0fb1abdb4d1e4db08d7dd5b131b31b0c.pdf
- https://static.usrfiles.com/ugd/b8c837_0e26aba2fe3248e48108a57d43fa3a8c.pdf
- https://static.usrfiles.com/ugd/dc8a8e_96846e280acd4ba59240611c6a6e762e.pdf
- https://static.usrfiles.com/ugd/374ce0_0904a9a491ed4c4d98d24ecd5676c379.pdf
- https://cdn.shopify.com/s/files/1/0435/9634/9602/files/37039322144.pdf
- https://cdn.shopify.com/s/files/1/0434/3287/0044/files/dozuvedoguzam.pdf
- https://cdn.shopify.com/s/files/1/0440/3773/4550/files/flowers_for_algernon_test.pdf
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/nomezajimazow.pdf
- https://cdn.shopify.com/s/files/1/0428/9187/0375/files/9847368672.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_off0000973a.bin` `4df0d070257e122a6b88e7e5973af9f0253bb53bde35fab55a16525fdd50df9b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x973A	5496 bytes
`font_01_sfnt_off0000a9de.bin` `b46b3505c692969df3532e94ac03eba3f3f8c53146a8655d5e137c798cdce0aa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA9DE	10468 bytes

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