PDF malware analysis — malicious · 9bd56cc0ed77dc4b

MALICIOUS

PDF

43.5 KB Created: 2020-08-30 04:48:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b82cbb1e55b40f688457ec7505f88d42 SHA-1: 24f8f810ed6ee6a5e1f1f075935dcc0df8cd447b SHA-256: 9bd56cc0ed77dc4b2e22ae319d066719a667a4b2cec6ba582934211032ee9266

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, with one specifically identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates that the document is designed to host numerous links, likely for SEO manipulation or to distribute malicious content. The presence of the malicious redirector URL suggests an attempt to lead users to harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.cc/wix?keyword=evaluation+complement+circonstanciel
- https://static.usrfiles.com/ugd/de60da_21d61e63b5c54498811db3db8bfdcbbc.pdf
- https://static.usrfiles.com/ugd/b8c837_a0756683521443d286b7d737e6dc60a6.pdf
- https://static.usrfiles.com/ugd/b8c837_3de774401a19459cab34877a8135017a.pdf
- https://static.usrfiles.com/ugd/b8c837_b89d6a7b0aeb4f74a62d7157d893c49a.pdf
- https://static.usrfiles.com/ugd/b11f6d_5c891f3a032a4dd48573a423ebde7505.pdf
- https://cdn.shopify.com/s/files/1/0431/2278/6466/files/bam_bam_bhole_song_ringtone.pdf
- https://static.usrfiles.com/ugd/6df952_beed2c77df6e4d7cafb5a6ec5ce9de33.pdf
- https://static.usrfiles.com/ugd/353d00_24171b114cda46d5aa4a12fb2f77e2ec.pdf
- https://static.usrfiles.com/ugd/429b25_1cc922c9ad7f4c4983128a68bc82d811.pdf
- https://static.usrfiles.com/ugd/b8c837_41dbeb698bd24e83b59ff60dc4f5f003.pdf
- https://static.usrfiles.com/ugd/b8c837_a2403ad843d34fb4a8f57371a1049df1.pdf
- https://static.usrfiles.com/ugd/1cfe37_0a9c146049184dcdbf4d1fda76ce541a.pdf
- https://static.usrfiles.com/ugd/455f95_c769120d0812495f8fe83ac02cb8cb89.pdf
- https://static.usrfiles.com/ugd/74e905_c2a5faa6389f4f7692dc0dd406b86d30.pdf
- https://static.usrfiles.com/ugd/1fbf8b_262e9fa2ad2549f0b571c09c56b10b16.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_off000056ad.bin` `5f42db77b007e8edea3f6d5a172536983dcf61262b0939fa04d379eb5fd7847c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x56AD	5096 bytes
`font_01_sfnt_off000067ec.bin` `6800427403585a85d3bf2298250a5a6028a49247d7a2298764644f9261c84159`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67EC	10248 bytes
`font_02_sfnt_off00008b2c.bin` `bc7e3f6831be34686de02ce7be2a06b9f1fa2b1a298201cd6e3dc3baf4672bf7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B2C	16376 bytes

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