PDF malware analysis — malicious · e2f081e82610d5ed

MALICIOUS

PDF

45.3 KB Created: 2020-08-30 07:06:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b87c371cc0c3f7f917596c1578912ade SHA-1: c1999a3a8c211bf567d7b97bd8be22cdc1a8ec88 SHA-256: e2f081e82610d5ed2f865c637b0502caf8949dc5251c4fdfdc6852567fa0ee9e

160 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF contains a malicious redirector link pointing to ttraff.ru, which is flagged as malicious. Additionally, it exhibits characteristics of a password-protected archive lure, suggesting the user is expected to download an encrypted file. The document body, though heavily obfuscated, contains the malicious URL and references to software downloads, reinforcing the lure. No scripts were extracted from this sample.

Heuristics 4

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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=descarga+libre+xf-adsk2017_x64
- https://static.usrfiles.com/ugd/b8c837_f0f6d74d10bc47bdb90ccbb503061549.pdf
- https://static.usrfiles.com/ugd/b8c837_91bf990c28404a6b84c79293ed3236f0.pdf
- https://static.usrfiles.com/ugd/493135_52b92e3bd2a64f5e95dc065def9f792b.pdf
- https://static.usrfiles.com/ugd/b8c837_d135705168cd4abcae0b1b26b3c28bfb.pdf
- https://static.usrfiles.com/ugd/162fe6_efa81432108e402db96b85162538990e.pdf
- https://static.usrfiles.com/ugd/b8c837_4f926360824e48f68cdc451d1f424712.pdf
- https://static.usrfiles.com/ugd/3b47cb_eb117166af6547f9b81b7ab7357fbddb.pdf
- https://static.usrfiles.com/ugd/696b8a_14423a6199c74d67bcca3cbcde056682.pdf
- https://static.usrfiles.com/ugd/b8c837_0ba8fa64ff2146f39c01d83a7ed68bbf.pdf
- https://static.usrfiles.com/ugd/defdb4_78d6934382c7443a893401d2fe7733ac.pdf
- https://static.usrfiles.com/ugd/105a8c_9a9cb131dfb84e73b8dad3a251c27532.pdf
- https://static.usrfiles.com/ugd/c3f88d_a6ccf888ab194011ac74fee84a335f5d.pdf
- https://static.usrfiles.com/ugd/a1fb72_b5bfde6c493b41ef8245b97cfe50c0b3.pdf
- https://static.usrfiles.com/ugd/b8c837_356757b73cb642b19deb0bff8ac64bd6.pdf
- https://static.usrfiles.com/ugd/4b7290_7accb3896c854a9e9affff1214cd4861.pdf
- https://static.usrfiles.com/ugd/b8c837_d6247f754daa4a7dbd816da461b6224e.pdf
- https://static.usrfiles.com/ugd/b8c837_585e8478dc684b0b9b27ade8e9e7a858.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_off0000640c.bin` `22d1b4565047749f70645cfbbfa748959189076fca4bbc321877445eca8ac329`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x640C	6168 bytes
`font_01_sfnt_off00007944.bin` `b4d0e324dd6993e3eb161c2829c44a71a961e9b27bc495c6374b2215789f7ff7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7944	15332 bytes

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