PDF malware analysis — malicious · c5ec452dad994f4d

MALICIOUS

PDF

35.0 KB Created: 2020-08-30 20:37:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3c2e55ef01e779780fce6e0628b76ee1 SHA-1: 245ae61b6ce072ffd2b2530fa8978692bea1b4df SHA-256: c5ec452dad994f4d87790173a2c4ea3580d2f29c4ab6b46a0f3ca4033a0d6e0d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm and a primary malicious redirector URL, disguised as a manual for an alarm system. The heuristic firings indicate that the PDF links to known malicious redirector infrastructure and contains a mass external PDF link farm. The primary malicious URL is https://ttraff.com/wix?keyword=manual+instalao+alarme+positron, which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to the alarm system manual and 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/wix?keyword=manual+instalao+alarme+positron
- https://static.usrfiles.com/ugd/b8c837_84a0e611c7c74559b58b7e3b0685a248.pdf
- https://static.usrfiles.com/ugd/b8c837_58c7cd9e7fb84697a096215b1eac9c71.pdf
- https://static.usrfiles.com/ugd/3f80ec_cd44c80cbe7e48ed9a76815b4c3bfea3.pdf
- https://static.usrfiles.com/ugd/4b874d_9adf58eb2a514292903c434c06aa1eaf.pdf
- https://static.usrfiles.com/ugd/57c819_ac72dacf55794e69905444a30b4da4da.pdf
- https://static.usrfiles.com/ugd/16a96a_7b71ed5716934b8284f6d967b2fa6e54.pdf
- https://static.usrfiles.com/ugd/cec570_b27254017c2e4209a4d7146b1de53486.pdf
- https://static.usrfiles.com/ugd/83b1b3_02e6e2a1e3b04207a8063fa0a575bc3f.pdf
- https://static.usrfiles.com/ugd/9ea9b6_fd331474832b4c429ffb13f73685395b.pdf
- https://static.usrfiles.com/ugd/6116da_bdd48268f1b54cb8a188abe2fa42303e.pdf
- https://static.usrfiles.com/ugd/5de1df_4036f59045034baca61f59de436ad812.pdf
- https://static.usrfiles.com/ugd/b8c837_97127c41518d436d95f93a6150ba9786.pdf
- https://static.usrfiles.com/ugd/b65acf_7ace611da7864c11b6d3fc1df7853c16.pdf
- https://static.usrfiles.com/ugd/8ba634_1d1d282411884d03ac60bc4ec38f5267.pdf
- https://static.usrfiles.com/ugd/b8c837_9021e0a4d19a420d9e7f540be05bb835.pdf
- https://static.usrfiles.com/ugd/5b604d_a95f5e12fbe3427a9e01391854faa3dd.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_off00004c63.bin` `d5492553a2699dd8af8081231893401246043aedb31c0d9446fb4ae7f1c9ab41`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C63	4972 bytes
`font_01_sfnt_off00005d35.bin` `232096ca332050bf457bae8a4f5bd4a439d30d506b41e7e72832979053ec50a3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D35	10028 bytes

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