PDF malware analysis — malicious · 763a66d4c52bd6d5

MALICIOUS

PDF

47.9 KB Created: 2020-07-30 06:50:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c2491900825fabe9f4b982d7215663eb SHA-1: 8dcff4338f7bfd4d9ef38a93e0c0866efa7b9dcc SHA-256: 763a66d4c52bd6d56ae82dda4da7d81a3f108a032e63d91cdff825a1bc862f4b

150 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, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to ttraff.ru. Another critical heuristic, PDF_SEO_LINK_FARM, indicates a mass external PDF link farm. The ML classifier also flagged this PDF with high confidence. The document body appears to be corrupted or obfuscated, but the presence of numerous links suggests a redirection or SEO-based attack.

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.ru/pify?keyword=spastic+paraplegia+rating+scale+pdf
- http://files.intempodanceensemble.org/uploads/1/3/1/8/131871874/wedodav-tipuzajuvetidiw-luwotapupivegus.pdf
- http://files.carolinevanthoff.com/uploads/1/3/1/4/131453990/sanoburamug_kewubuxe.pdf
- http://files.shirleygoodwinphotography.com/uploads/1/3/2/6/132681212/lokarujupipe.pdf
- http://files.ceirpittsburgh.org/uploads/1/3/0/7/130739544/c6529d463.pdf
- https://cdn.shopify.com/s/files/1/0431/1816/6167/files/26345861753.pdf
- https://cdn.shopify.com/s/files/1/0428/7329/0908/files/46862470386.pdf
- https://cdn.shopify.com/s/files/1/0429/5720/9753/files/pimulutakigivonanusonigon.pdf
- https://cdn.shopify.com/s/files/1/0433/4832/8603/files/33632671077.pdf
- https://cdn.shopify.com/s/files/1/0434/6370/4729/files/16081150341.pdf
- https://cdn.shopify.com/s/files/1/0438/3296/7318/files/limuwotud.pdf
- https://cdn.shopify.com/s/files/1/0437/2817/5255/files/45148779906.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.pdf
- https://cdn.shopify.com/s/files/1/0428/2348/3548/files/gogig.pdf
- https://cdn.shopify.com/s/files/1/0434/4394/5628/files/68481999263.pdf
- https://cdn.shopify.com/s/files/1/0428/5405/6095/files/kuzif.pdf
- https://cdn.shopify.com/s/files/1/0432/3826/0899/files/kapuri.pdf
- https://cdn.shopify.com/s/files/1/0430/1262/0447/files/zumaluposesijugajukax.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_off000070e3.bin` `4b31a1c61654ede1bc764ef7d2c90e7fc45d514c957f458619053c129a4c21e3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70E3	5104 bytes
`font_01_sfnt_off0000823e.bin` `da807ae0e069ba44faf4c72c0c56662269ff03f8f044acccffee93bb84fcb6ae`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x823E	15396 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.