PDF malware analysis — malicious · ee28d7dc71e13d8b

MALICIOUS

PDF

42.8 KB Created: 2020-08-31 05:09:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a1bc5952d1b2ce020c0227e4c71260e7 SHA-1: 80d5cbfb3271576fc9333151e192d476c06f6711 SHA-256: ee28d7dc71e13d8bcf295d32e7a1eabcd78691178acb87dfccf8d8ba2e4f0435

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, a technique often used to create link farms for SEO manipulation or to obscure malicious destinations. One of the primary links points to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the target URL, reinforcing the malicious intent. The ML classifier also strongly indicated maliciousness.

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=the+frame+tv
- https://static.usrfiles.com/ugd/4b7290_71f67635059a4015b4ec79f8934ca718.pdf
- https://static.usrfiles.com/ugd/b8c837_7e02755ea7f64cb2ba3cd4a7f15fa134.pdf
- https://static.usrfiles.com/ugd/b8c837_3d459e0df3594179a2af038a8a62afd7.pdf
- https://static.usrfiles.com/ugd/68ec51_be195c8b680e46aabe23140b68cee5d8.pdf
- https://static.usrfiles.com/ugd/b8c837_60ba390690174b53b9191859c809e2a3.pdf
- https://static.usrfiles.com/ugd/3e9e83_51b7e8fa77d44d05a81f3ffd39cf4732.pdf
- https://static.usrfiles.com/ugd/de60da_52f1e279a45a4e688e7c9f942741ab15.pdf
- https://static.usrfiles.com/ugd/b8c837_3cba043c14bd4ee79519e9e6063bc1b0.pdf
- https://static.usrfiles.com/ugd/f09a9d_a6d130e6d97747eba1df939f86a892b5.pdf
- https://static.usrfiles.com/ugd/e3325f_114abd8196b44c24b63c3f599b570845.pdf
- https://static.usrfiles.com/ugd/b8c837_ef1531130b8740b3b675943f0c4e103c.pdf
- https://static.usrfiles.com/ugd/837d34_740295abbb834a32b010b1fcde2036fe.pdf
- https://static.usrfiles.com/ugd/3e87bf_4f1ebadde48a43c091298c703e311c60.pdf
- https://static.usrfiles.com/ugd/ee9d3f_4a7e250816394dbca678b983d8959c99.pdf
- https://static.usrfiles.com/ugd/f96b02_4c488a11f729436fb63234ff0e166ebe.pdf
- https://static.usrfiles.com/ugd/078c79_c28a1b46bfc4434fac6f798cbfd84d95.pdf
- https://static.usrfiles.com/ugd/cc089a_7cfba0c60e764aedb51db42f6a669d47.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_off00006961.bin` `272f175eac9391583fbd41c5eedcc8ff060ade5b39f8109041ba78c352a2c786`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6961	4808 bytes
`font_01_sfnt_off000079a4.bin` `6bab08dba15533e39a86513636b4761b5a0dfd71e993c9eb7d611361a39e60e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x79A4	10896 bytes

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