PDF malware analysis — malicious · 24676c1188ccc697

MALICIOUS

PDF

57.1 KB Created: 2020-08-31 01:22:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 72aaaf816f263c1e9db20d7bdaff791e SHA-1: 75b0b7fe437cd5fe4fbb62f190f0b251de96eba9 SHA-256: 24676c1188ccc69796f727b12c8108ebdda8eac3430bd2c45d407150603231ef

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, many of which point to a domain associated with a malicious redirector. The document body, though partially corrupted, suggests a lure related to 'Cuentos de dormir para niñas rebelde'. The primary malicious indicator is the link to 'ttraff.ru', which is flagged as a malicious redirector. The file's structure and embedded links indicate an attempt to direct users to malicious infrastructure.

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=cuentos+de+dormir+para+ni%25C3%25B1as+rebelde
- https://static.usrfiles.com/ugd/b8c837_14cb80bdcb40485c9783e7d101722bf0.pdf
- https://static.usrfiles.com/ugd/b11f6d_17004e869ffa43f49bcdd330b05790b6.pdf
- https://static.usrfiles.com/ugd/b8c837_7b8697ee309d48c9b1c8779998d8d11d.pdf
- https://static.usrfiles.com/ugd/b8c837_51d76e8191ad4e54acb8116c35b0e87a.pdf
- https://static.usrfiles.com/ugd/868401_670b7fccc9594e42a8f1c021461ff61b.pdf
- https://static.usrfiles.com/ugd/2e4eb4_56934a0930e54d7bbe4bc76dbec48c09.pdf
- https://static.usrfiles.com/ugd/77d535_7051cdb4378e48468f40bd0a925966a8.pdf
- https://static.usrfiles.com/ugd/96768c_b8b760fcc657438c8d08ca0632f669ef.pdf
- https://static.usrfiles.com/ugd/764aaa_fa6f21eef61e44849b04769c449d29a7.pdf
- https://static.usrfiles.com/ugd/7f929b_9e8d9e7cab42490985e17046356fa2d5.pdf
- https://static.usrfiles.com/ugd/1b8612_d862afd2bfd74f5ba38d381722375ac8.pdf
- https://static.usrfiles.com/ugd/b8c837_aa2cf6b96ada42b1abdcefda0868898e.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000063f5.bin` `127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63F5	6744 bytes
`font_01_sfnt_off000074dc.bin` `245243f3232645fccb3bdd9dcc3408ffb660056fbce796e337d8c11fd3f539cd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74DC	5364 bytes
`font_02_sfnt_off000086a1.bin` `b966810309f73d79468f40f958f00ff67bdbaff85dc99a103807b51effbea02b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86A1	3668 bytes
`font_03_sfnt_off00009523.bin` `b0b7992de448215c30565d62b48f70f674c8ccb5d7d24d3f85ba45febce60dc3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9523	12408 bytes
`font_04_sfnt_off0000bd56.bin` `f4123cf4424aabe51b058b89d9b8ca42d5b2f837e5a95bd32adeebe8c7ebaf0e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD56	16728 bytes

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