PDF malware analysis — malicious · 27b226dc90d099eb

MALICIOUS

PDF

42.6 KB Created: 2020-07-21 21:29:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6d05a56c1a0082ac57c1931aa6cd4d30 SHA-1: bf82efc95f22e499a2bfd458764e7e909445a1fe SHA-256: 27b226dc90d099eb8a5c8f19a543213f8f34d7cae1b08ce2228d61e34dad69d1

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, embedding numerous external links. One of these links, 'https://ttraff.ru/wb?keyword=papercraft%20car%20pdf', is flagged as a malicious redirector. The document body is heavily obfuscated, preventing a clear understanding of its intended content, but the heuristic firings strongly suggest a malicious redirection attempt. 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/wb?keyword=papercraft%20car%20pdf
- http://files.westfieldhighschoolgirlsicehockey.com/uploads/1/3/1/4/131483445/wosokizinewa.pdf
- http://files.odetteblacklock.com/uploads/1/3/0/8/130874266/gixobejodu.pdf
- http://files.bonejourdoggiebandb.com/uploads/1/3/1/8/131856232/2911487.pdf
- https://fegiduv.files.wordpress
- https://cdn.shopify.com/s/files/1/0435/5633/9861/files/85071375322.pdf
- https://cdn.shopify.com/s/files/1/0437/2830/6330/files/gowonifilaresigo.pdf
- https://cdn.shopify.com/s/files/1/0430/4103/0293/files/nudus.pdf
- https://cdn.shopify.com/s/files/1/0432/1024/4256/files/51467293294.pdf
- https://kijovez.files.wordpress.com/2020/06/99093155314.pdf
- https://fegiduv.files.wordpress.com/2020/06/505513863.pdf
- https://gosijanasi.files.wordpress.com/2020/07/89837739109.pdf
- https://fijimisu.files.wordpress.com/2020/07/23531416095.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mesujegixaxufusataxa.pdf
- https://cdn.shopify.com/s/files/1/0430/5669/3397/files/23576531299.pdf
- https://cdn.shopify.com/s/files/1/0433/8080/1701/files/fowiso.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdf
- https://cdn.shopify.com/s/files/1/0429/6422/2101/files/83798822319.pdf
- https://cdn.shopify.com/s/files/1/0432/2318/7614/files/foxiwekukixidugebebulopi.pdf
- https://cdn.shopify.com/s/files/1/0431/6643/3435/files/vegebi.pdf
- https://cdn.shopify.com/s/files/1/0439/9579/1518/files/91689829989.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_off00006c8a.bin` `5789910ea74ea813091ffafdbb16c24f19d6abe688a11ad3a080c8dcc081dd63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C8A	4464 bytes
`font_01_sfnt_off00007bbf.bin` `fa8542f5c586a1d57ff6f06df2bea0e66292a1a76334d05eef06091702e68019`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BBF	9892 bytes

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