PDF malware analysis — malicious · da1be2860fc3ebfd

MALICIOUS

PDF

66.8 KB Created: 2020-08-30 17:13:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4464af498ce632d9e4bbb7d22f040496 SHA-1: 3f6e774e9e5c45c7a1ccd474d8f052e66be7b938 SHA-256: da1be2860fc3ebfd63077ba5420796a6b59e9c63d0295c754d4d17590ea327c5

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, many of which point to external PDF files. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/wix?keyword=yugioh+gx+duel+academy+codebreaker'. The document body, though heavily obfuscated, contains this same URL and references 'Yugioh gx duel academy codebreaker', suggesting a lure to a malicious site. The presence of a link farm and a malicious redirector indicates a phishing or social engineering attack.

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=yugioh+gx+duel+academy+codebreaker
- https://static.usrfiles.com/ugd/b8c837_66c3b32e43b14a329f38f6bb90c72a2d.pdf
- https://static.usrfiles.com/ugd/b8c837_ea766fa082de4f4b8f9cab86dc92a606.pdf
- https://static.usrfiles.com/ugd/b8c837_cfed0368144b4d54898b2bde364a1518.pdf
- https://cdn.shopify.com/s/files/1/0456/4742/9799/files/7578309996.pdf
- https://cdn.shopify.com/s/files/1/0434/0521/3852/files/sebevurejomuwaxukas.pdf
- https://cdn.shopify.com/s/files/1/0428/6060/9703/files/revejusivosaz.pdf
- https://static.usrfiles.com/ugd/b8c837_de8101c28447443aa733ff3c6c638ccb.pdf
- https://static.usrfiles.com/ugd/b8c837_1a0ee9c9a2d6426e806a9a1bb2fd7055.pdf
- https://static.usrfiles.com/ugd/9cfd0a_4e55ee835494488e94d4927132801a21.pdf
- https://cdn.shopify.com/s/files/1/0462/9505/6545/files/8087254422.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdf
- https://cdn.shopify.com/s/files/1/0427/9851/4343/files/pagetafegu.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_off0000b63c.bin` `d7d47a349d39d8442b4103e64d6866e4be09fdd4ff3fe08e6bdb5659ed6d5c66`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB63C	5188 bytes
`font_01_sfnt_off0000c854.bin` `cee6e5e21df1660944123800fa260f6521bed98369c09f63f504c22619499004`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC854	5512 bytes
`font_02_sfnt_off0000dafa.bin` `a53a8c8d049a9cd17c4e7b5c89dece8c2d795f1535826bf9393d05140f19357c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDAFA	10316 bytes

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