PDF malware analysis — malicious · f2d345c43dd4a8ae

MALICIOUS

PDF

43.9 KB Created: 2020-09-09 00:45:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 044f9eb89b252744747fd7df4d82ef8f SHA-1: c0374d1544373c38d0d3489860ca74d6efc8581e SHA-256: f2d345c43dd4a8aea6f80d9818773d828dc2a608901e92189d01a797b8d2fafa

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a malicious redirector link disguised as a "happy birthday cake with name editor" lure. This link points to `https://ttraff.club/wix?keyword=happy+birthday+cake+with+name+editor`, which is a known malicious redirector. The document also contains a large number of external PDF links, many hosted on `cdn.shopify.com`, suggesting a link farm for SEO manipulation or to obscure the final malicious destination. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=happy+birthday+cake+with+name+editor
- https://cdn.shopify.com/s/files/1/0463/3044/5979/files/16465464000.pdf
- https://cdn.shopify.com/s/files/1/0437/6841/4370/files/wisofixagevevadarikewu.pdf
- https://cdn.shopify.com/s/files/1/0433/8096/5534/files/12_cranial_nerves_and_function.pdf
- https://cdn.shopify.com/s/files/1/0435/7059/3955/files/37755843496.pdf
- https://static.usrfiles.com/ugd/0fdb6d_155fa54090294118959b0eafc1c36501.pdf
- https://static.usrfiles.com/ugd/8c2e83_8a737b976b5945dcba477f4b9cb14232.pdf
- https://static.usrfiles.com/ugd/87a178_47974157c8a9495ba674315cd718319a.pdf
- https://static.usrfiles.com/ugd/6350c7_a6af1397fc4b46ae85af2edfd793a543.pdf
- https://static.usrfiles.com/ugd/5c139a_2e01370acbc1427da9d3ccc1ca468e4b.pdf
- https://cdn.shopify.com/s/files/1/0437/9531/6896/files/asenath_mason_espaol.pdf
- https://cdn.shopify.com/s/files/1/0434/1324/2005/files/sodimifo.pdf
- https://cdn.shopify.com/s/files/1/0434/5013/8784/files/33224149429.pdf
- https://static.usrfiles.com/ugd/e32576_ea763e897729475b97712ee1674dd17f.pdf
- https://static.usrfiles.com/ugd/760101_e650df5f5d6c4d73b986feae39908317.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_off00006029.bin` `c77f7b26f5315bb38ae6bf73cd8d11cae6ee8c47496051541c9d243b0dd65c7d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6029	5248 bytes
`font_01_sfnt_off000071d5.bin` `65f0e30990c5aca7cae5bd4e34d29007ef4eada997ed6fdf9e5169e0134bd450`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71D5	10272 bytes
`font_02_sfnt_off000094b6.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x94B6	4324 bytes

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