PDF malware analysis — malicious · 551ea0f51d83b190

MALICIOUS

PDF

44.8 KB Created: 2020-08-31 11:06:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6cd4366a8d1310d2aeed620781762d2a SHA-1: 1be7817c1e64272bfde31cd63a45b31853590067 SHA-256: 551ea0f51d83b190ab52cfe3478419710d7287afa85c87569d3aa7660a6ba0f5

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, many of which point to a link farm designed for SEO manipulation. One prominent link, 'https://ttraff.cc/wix?keyword=adobe+xd+cc+mac+free+download', is flagged as malicious and likely serves as a lure for users searching for software. The document body, though heavily obfuscated, contains references to this malicious URL and other PDF files, suggesting a social engineering attempt to trick users into downloading unwanted or 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.cc/wix?keyword=adobe+xd+cc+mac+free+download
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1204107997.pdf
- https://cdn.shopify.com/s/files/1/0437/1228/2789/files/gejozidoliwuwalug.pdf
- https://cdn.shopify.com/s/files/1/0433/5733/9813/files/24735637371.pdf
- https://cdn.shopify.com/s/files/1/0427/4978/8327/files/16262466921.pdf
- https://static.usrfiles.com/ugd/f46427_dc0c155feb654e9eb6b923f58479b024.pdf
- https://static.usrfiles.com/ugd/32acb1_547cacd03f334eebb9b8744fbf43eb53.pdf
- https://static.usrfiles.com/ugd/b8c837_d36efc66e1ff4671935da6f60229f0b9.pdf
- https://static.usrfiles.com/ugd/df4650_2137772795a44f18bd61034af55fa8ec.pdf
- https://static.usrfiles.com/ugd/1be480_5c3a217929664c95be7c3af6b51f89f4.pdf
- https://static.usrfiles.com/ugd/724fb5_33ac2bd32adb4dec93a4cfb3381938aa.pdf
- https://static.usrfiles.com/ugd/3bca44_a952d9cbdda14081b369a858b5c622fc.pdf
- https://static.usrfiles.com/ugd/b8c837_bfb518c5d59a49098f26597b10d0cccc.pdf
- https://static.usrfiles.com/ugd/33a2e4_1243ecfe86a24c5cba71b2e65a22691b.pdf
- https://static.usrfiles.com/ugd/b8c837_c8c41945daba4f0d98e3e43d7d241d30.pdf
- https://static.usrfiles.com/ugd/87a178_6ece49b6e0594432a260feb7f511b817.pdf
- https://static.usrfiles.com/ugd/b8c837_b795ef5f06474cda8c10d76bfa098e23.pdf
- https://static.usrfiles.com/ugd/bd5c68_32c5f4f4193a4eeeafd77bd4e40b4102.pdf
- https://static.usrfiles.com/ugd/ce0e6d_86b17f151d3f48dc97ce9cecf939f6dd.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_off00007022.bin` `a1d6959fab137a2a3f3379beb00a7ad07963686e4216abee6ea4fd74767458a8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7022	5280 bytes
`font_01_sfnt_off00008210.bin` `55b0c48ee7cea462108d129fdd99b9bb3fffea39d6f3b1d66fd064290cba53bc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8210	10760 bytes

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