PDF malware analysis — malicious · 598683fc1ad51315

MALICIOUS

PDF

44.1 KB Created: 2020-08-29 21:12:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 87dfc9d83d49a3dbb6b317f1342ab50b SHA-1: 6c4e44efe0b675c3af431b93a852b925a57ebfa1 SHA-256: 598683fc1ad5131506774868fb67ac8903bbf1768ea91f8ab54beca8bc2a7b54

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links to external PDF documents, a technique often used for SEO poisoning or to host malicious content. One of the primary links, 'https://ttraff.ru/wix?keyword=download+adobe+photoshop+cs4+mac', is flagged as a malicious redirector. The document body, though partially corrupted, also contains this URL, suggesting a lure for pirated software. The presence of a malicious redirector link and a mass of external links points to a delivery mechanism for further compromise.

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=download+adobe+photoshop+cs4+mac
- https://static.usrfiles.com/ugd/b8c837_5fc6c97f93bc4691a976cd63338b8b70.pdf
- https://static.usrfiles.com/ugd/b8c837_4c3b8b89cff342aabce7eeee745cf9f7.pdf
- https://static.usrfiles.com/ugd/b8c837_cf1ac2f190f442c3b39aa1ee0dbb38f9.pdf
- https://static.usrfiles.com/ugd/b8c837_1f0d6ebb48224e0291c738e83f12f25a.pdf
- https://static.usrfiles.com/ugd/b8c837_3999fb05c3bf448d8adbba81ce1d73e0.pdf
- https://static.usrfiles.com/ugd/3cb679_333fddb5c300405eb0aa9c54e3473b27.pdf
- https://static.usrfiles.com/ugd/b8c837_a8679ef925f6435684dc6b9c5758c7d9.pdf
- https://static.usrfiles.com/ugd/b8c837_48f7a3497a2542da957999b5eb6dfb1c.pdf
- https://static.usrfiles.com/ugd/b8c837_3e1279d65a5043e0b0f3c7dd1854f029.pdf
- https://cdn.shopify.com/s/files/1/0432/4530/6011/files/lg_bloatware_list.pdf
- https://cdn.shopify.com/s/files/1/0440/8731/2534/files/xofatujaresesuf.pdf
- https://cdn.shopify.com/s/files/1/0430/8910/0957/files/88574192421.pdf
- https://cdn.shopify.com/s/files/1/0435/2330/9727/files/jojexagogavok.pdf
- https://cdn.shopify.com/s/files/1/0430/3021/6855/files/27462304811.pdf
- https://static.usrfiles.com/ugd/b8c837_013d51f8434549aa9d242b3c5c66603c.pdf
- https://static.usrfiles.com/ugd/b8c837_ed59e422ec054ee081e18de4f03e6c5c.pdf
- https://static.usrfiles.com/ugd/b8c837_a6fa92e436784cf9956ea7197c1b1fa1.pdf
- https://static.usrfiles.com/ugd/b8c837_f83f012773864f15b88dd7246eeb3c87.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_off00006d0c.bin` `61510fbba9c5514a21f497aa5e867917aa45370a57f9279f54e6790943d9890c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D0C	5536 bytes
`font_01_sfnt_off00007fcd.bin` `476b59de64b1770269dcf37b97e0393ede8e066f1185d411a439791010cb8d7b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FCD	10316 bytes

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