PDF malware analysis — malicious · a6340645217789f5

MALICIOUS

PDF

47.4 KB Created: 2020-08-30 06:58:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 62bf39c2fae0ec234e7caa623313a887 SHA-1: 46659a4fa6f8cf38e7d4d76937094434464ec006 SHA-256: a6340645217789f5a761457cfcf89f7f6d2fb26847b2aed3998deb2d4904490f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to other PDF files, a technique often used for SEO manipulation or to obscure malicious activity. One of these links, 'https://ttraff.ru/wix?keyword=kawasaki+kr+150', is identified as a known malicious redirector. The document body is heavily obfuscated and contains what appears to be junk data, along with the malicious URL. No scripts were extracted from this sample.

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=kawasaki+kr+150
- https://static.usrfiles.com/ugd/cafc24_9ba86247281a4a49947e5be93eb97ab4.pdf
- https://static.usrfiles.com/ugd/0c268c_f7d1548c418a4669afa4fa039791aa68.pdf
- https://static.usrfiles.com/ugd/f09a9d_e1752ae971e84f70bfa7ff2b430a3675.pdf
- https://static.usrfiles.com/ugd/ea2f88_8acf19e517c94d2b85eb7e19e5641316.pdf
- https://static.usrfiles.com/ugd/07625c_2641a31085c54d23a091d5fe22f8bcf3.pdf
- https://static.usrfiles.com/ugd/b8c837_1ede4d68659f408ab4f3a4858bdffa19.pdf
- https://static.usrfiles.com/ugd/a48928_f2293b1d2f50475996cd50efb5da5a55.pdf
- https://static.usrfiles.com/ugd/b8c837_8eb1866d71f94eedb18dda8893a49f48.pdf
- https://static.usrfiles.com/ugd/b8c837_a4c5a4c552b24ff7ade7d7a220749a44.pdf
- https://static.usrfiles.com/ugd/a467d2_79f9c5d627d64b76ba628c5cbfcb335f.pdf
- https://static.usrfiles.com/ugd/0cd3a8_76a3d23c3b01481caf990b706e252ad3.pdf
- https://static.usrfiles.com/ugd/7d1dc9_08a6fe0b0094459ba1f6003c250ea617.pdf
- https://static.usrfiles.com/ugd/b8c837_3f66f03741b147d385a27749e24f2d19.pdf
- https://static.usrfiles.com/ugd/b8c837_4b36690e44f14102b07a6aeeb259cabf.pdf
- https://static.usrfiles.com/ugd/c3f88d_07969b02281b4ac8ab1ece8f62e2a4af.pdf
- https://static.usrfiles.com/ugd/d1d005_851ab943a81642e2bb37bb02665a1a77.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_off00006489.bin` `b54fff9741eb2ab60068ccf08ded04e2ab66378e77c73a58fc9240a7029bda82`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6489	7060 bytes
`font_01_sfnt_off00007c85.bin` `106e51bffe2959b9e2a7adc2e0d2bc4e656751e45dcc5aa917dd1d33fbaa20e4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C85	5092 bytes
`font_02_sfnt_off00008df8.bin` `90a0a71f859e174f63d67e6338cb8623a9d17a2b8e9d7f7b56a8488b3100afc2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DF8	10244 bytes

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