PDF malware analysis — malicious · 8301a7252efcb618

MALICIOUS

PDF

39.2 KB Created: 2020-09-05 23:58:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 79600e9acbb6043de4509503ffdc7dfa SHA-1: c630e893fd77fcabbf8c675f5caebef6e817c24c SHA-256: 8301a7252efcb6185d810aecb0b5c0351d965eafdff21812cddfb76f64304c00

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm, with 19 external PDF links, designed to appear as a manual for "Bucher hydraulics 8111- s". One of these links, https://ttraff.club/wix?keyword=bucher+hydraulics+8111-+s+manual, is identified as a malicious redirector. The document body, though heavily obfuscated, contains the lure text 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.club/wix?keyword=bucher+hydraulics+8111-+s+manual
- https://static.usrfiles.com/ugd/89064d_53051149040a44229da8d13569cf6742.pdf
- https://static.usrfiles.com/ugd/bf07b1_4214e7cc42d64add970eac84523f5601.pdf
- https://static.usrfiles.com/ugd/b8c837_d2fc01be6ca84681814b5d766f228403.pdf
- https://static.usrfiles.com/ugd/b8c837_c0580a59b5d24efdaaf91aa64aa08d9c.pdf
- https://static.usrfiles.com/ugd/64d889_359a09272de24f0e828d45a5e302feb5.pdf
- https://static.usrfiles.com/ugd/a42eed_1cb4ccb25a4e40ea9dc02076feea1f3e.pdf
- https://static.usrfiles.com/ugd/b50c55_e093a0cbd10b49799e52246933fd69f7.pdf
- https://static.usrfiles.com/ugd/e2c6c1_0dc08f2b9ae64eaeb103618f78aaa44e.pdf
- https://static.usrfiles.com/ugd/95bb70_3e24a40faaeb41a688827b0f320df4f5.pdf
- https://cdn.shopify.com/s/files/1/0428/2341/8019/files/navupigetewij.pdf
- https://cdn.shopify.com/s/files/1/0429/5163/9196/files/jozumikenepa.pdf
- https://cdn.shopify.com/s/files/1/0433/0350/1989/files/azox_500mg_bula.pdf
- https://cdn.shopify.com/s/files/1/0433/1143/1838/files/quimica_organica_ejemplos.pdf
- https://cdn.shopify.com/s/files/1/0428/0349/5071/files/desktop_audio_visualizer.pdf
- https://static.usrfiles.com/ugd/b8c837_fb3e26e588d44a439b6545c18e965d58.pdf
- https://static.usrfiles.com/ugd/eaf48f_4c9fb11eb89f41ebbd4ec3ed98539b82.pdf
- https://static.usrfiles.com/ugd/c33f71_55fe63c0a6384f5da4ba729cd0597b87.pdf
- https://static.usrfiles.com/ugd/d5d855_6c96d95d204e4f1a996e5373fd448d54.pdf
- https://static.usrfiles.com/ugd/9c58c5_d95eb5d4c50a43c58dbf0d5a2a59c716.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_off000052fa.bin` `ca0559eba8a411026bbf8804ea9601d20699fb475279fd5f99ca2e17d299f21a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x52FA	5608 bytes
`font_01_sfnt_off000065ef.bin` `cf3f7faf7c1b488f51fbfee1bbaef9808d32f31d02420d9fb6a69f6e0c6e4203`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65EF	13320 bytes

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