PDF malware analysis — malicious · 328e366e3577a7b4

MALICIOUS

PDF

48.7 KB Created: 2020-08-29 21:44:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8d66e3327287d796de806dc254f34fac SHA-1: 5a1d6ca253e0ee14bd890f3a31db91faeba764bd SHA-256: 328e366e3577a7b4bdd2a35f7cecb5255357280a4d976f21a5ac09b322760724

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass of external links, masquerading as a maintenance manual to entice clicks. The primary malicious link, https://ttraff.ru/wix?keyword=cummins+maintenance+manual, is identified as a known malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other benign-looking PDF links, consistent with SEO link farm tactics.

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.ru/wix?keyword=cummins+maintenance+manual
- https://cdn.shopify.com/s/files/1/0429/8221/1733/files/design_of_vibrating_screen.pdf
- https://cdn.shopify.com/s/files/1/0429/9672/7962/files/jabogadikifakusululifizom.pdf
- https://cdn.shopify.com/s/files/1/0434/0390/3127/files/bofapolerazirulolakidu.pdf
- https://cdn.shopify.com/s/files/1/0433/8457/0019/files/hydrocarbons_worksheet.pdf
- https://static.usrfiles.com/ugd/b8c837_5f35e69666394c26ba122993f94d4a6d.pdf
- https://static.usrfiles.com/ugd/b8c837_4aa50fe820d14e128736a2324d81e37f.pdf
- https://static.usrfiles.com/ugd/b8c837_7ebabf572332487ba4a4f7712ca3cfcc.pdf
- https://static.usrfiles.com/ugd/ec0c41_b95431238a914f56a1de2e1ee0d0a13b.pdf
- https://static.usrfiles.com/ugd/34ec99_f4574cced25e472498e6e71125bf2720.pdf
- https://static.usrfiles.com/ugd/b8c837_58c0e2677d264bdfb97c9b6145d5f366.pdf
- https://static.usrfiles.com/ugd/90c678_fa4f1c2937fe47d5b40d4757d4b3d1ba.pdf
- https://static.usrfiles.com/ugd/34ec99_856db9ad573f437eba9b102672ccad45.pdf
- https://static.usrfiles.com/ugd/affaa6_91850cbb394242c7909d546a3d0154f7.pdf
- https://static.usrfiles.com/ugd/b8c837_78becd815b094071a59ceb8afbc0b874.pdf
- https://static.usrfiles.com/ugd/b8c837_6263b29036f743c0a76294c39c240abd.pdf
- https://static.usrfiles.com/ugd/b8c837_529e85e8eafa4c27acd767bef33f89b5.pdf
- https://static.usrfiles.com/ugd/b8c837_66738736f2ad4c5b98e62a0b1133a496.pdf
- https://static.usrfiles.com/ugd/b8c837_94d27aa776bf44f5a4c7e6f533809d00.pdf
- https://static.usrfiles.com/ugd/b8c837_4985129fd57a4576b36b95f300dba106.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_off0000731b.bin` `a1848754e666222989f1d2a411a2933000f60112e7fc4516b523389f71537f96`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x731B	4756 bytes
`font_01_sfnt_off00008321.bin` `b87ab0182076e6394067d219aec96f19df630c6e7c3bb0e3e18fd501db8e9662`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8321	15824 bytes

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