PDF malware analysis — malicious · b27bef8a712a006f

MALICIOUS

PDF

47.6 KB Created: 2020-08-29 02:21:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6b0557d9a6b39f0448ebe84de0742a0f SHA-1: 0cb9b19a97f09d4da8589e663afac63da95a3533 SHA-256: b27bef8a712a006fec74fd5db40e833871e295f7ed1ab965938cdebf33156843

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with a critical heuristic firing for a PDF link to a known malicious redirector. The document body, though heavily obfuscated, contains the primary malicious URL. The presence of numerous links, including to a redirector, suggests an attempt to drive traffic to malicious infrastructure, potentially for phishing or malware distribution.

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=Auswirkungen+verschiedener+Teesorten
- https://static.usrfiles.com/ugd/b8c837_f81cc0d72986438190d1c685ee02e642.pdf
- https://static.usrfiles.com/ugd/b8c837_d72b41df5afd49369f67247cd0d2f3fa.pdf
- https://static.usrfiles.com/ugd/b8c837_bdc2cf9ebb4d4a149e0e175c238cc992.pdf
- https://static.usrfiles.com/ugd/b8c837_b11e002cb2c94ac19d58f412c992f902.pdf
- https://static.usrfiles.com/ugd/b8c837_2ce3bcebea834af9bfb1ef3d55410540.pdf
- https://cdn.shopify.com/s/files/1/0433/1854/2504/files/39131161879.pdf
- https://cdn.shopify.com/s/files/1/0432/5674/2046/files/83225688469.pdf
- https://cdn.shopify.com/s/files/1/0435/6797/2515/files/pevunarivusimabevodasosa.pdf
- https://cdn.shopify.com/s/files/1/0432/6942/3269/files/kededoroxozuno.pdf
- https://cdn.shopify.com/s/files/1/0437/2476/7400/files/geometrical_interpretation_of_integration.pdf
- https://static.usrfiles.com/ugd/b8c837_eebae45992ab439ba4e4491924dd2d86.pdf
- https://static.usrfiles.com/ugd/b8c837_99a05ef4693a485eabdb5b46b23183fa.pdf
- https://static.usrfiles.com/ugd/b8c837_e3fc20c6cc5443b78b1646e33f733bc0.pdf
- https://static.usrfiles.com/ugd/b8c837_4e1ead65e6914f5ca61070ed010f43bc.pdf
- https://static.usrfiles.com/ugd/b8c837_ca7214c10c1b47438db081708e9ff2ce.pdf
- https://static.usrfiles.com/ugd/b8c837_ecca9774b4e14120a00f63ae7b267244.pdf
- https://static.usrfiles.com/ugd/b8c837_9cf5d56a661243fba9817a90c2b050e1.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006452.bin` `97751e38ad696236d148100b49e2fa2b562f8633a4a25e9014d31a0d2c54c049`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6452	5208 bytes
`font_01_sfnt_off0000761f.bin` `b126ce43e512bba4483707bdb9603ab8aabc081f0789fe815932257e4c5c7d6d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x761F	11124 bytes
`font_02_sfnt_off00009a7e.bin` `2b5e7e198710ce25a9c9facea4da25a8305a97bff148003313a6d74af80700ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A7E	16084 bytes

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