PDF malware analysis — malicious · deceff95428de2f2

MALICIOUS

PDF

68.8 KB Created: 2020-07-30 04:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b279f7c956722c45ef095eeac6c2bbf1 SHA-1: d7567ea377209563730664aa1310798f5401ad47 SHA-256: deceff95428de2f23bcc290be4edcb85ff93c415929fcdc9066614450df0cf43

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains numerous links, with a critical heuristic identifying a malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, suggests a lure related to '12th maths formulas', likely to attract victims through search engines. The presence of multiple Shopify-hosted PDFs, alongside other unknown domains, indicates a link farm strategy. No scripts were extracted, limiting the analysis of direct payload execution.

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=all+formula+of+12th+maths+pdf
- http://files.tukawaysleddogkennel.com/uploads/1/3/1/4/131407148/e70e130a1234.pdf
- http://files.deevinestudio.com.au/uploads/1/3/1/4/131483128/4a2901fd4b8.pdf
- http://files.w-here2stay.org/uploads/1/3/1/0/131070718/runalotada_tigiribuzobare.pdf
- https://cdn.shopify.com/s/files/1/0429/3555/0118/files/80599113167.pdf
- https://cdn.shopify.com/s/files/1/0437/4292/0869/files/50062454254.pdf
- https://cdn.shopify.com/s/files/1/0430/3493/5447/files/lufebunut.pdf
- https://cdn.shopify.com/s/files/1/0430/5698/8311/files/vomaniredu.pdf
- https://cdn.shopify.com/s/files/1/0432/0601/7186/files/gidatowozogezi.pdf
- https://cdn.shopify.com/s/files/1/0427/9340/2534/files/muxuligozusulabi.pdf
- https://cdn.shopify.com/s/files/1/0430/5915/1009/files/zewidimikatugu.pdf
- https://cdn.shopify.com/s/files/1/0431/5804/4826/files/nijeresesoxagugutovi.pdf
- https://cdn.shopify.com/s/files/1/0431/7849/2062/files/wilamu.pdf
- https://cdn.shopify.com/s/files/1/0430/7304/4634/files/14420145091.pdf
- https://cdn.shopify.com/s/files/1/0429/5655/4394/files/josorodamisofoja.pdf
- https://cdn.shopify.com/s/files/1/0430/1740/4573/files/18274432911.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_off0000a9df.bin` `9caaf7bbcfbc229f025fe91a7d4c762c9a0d535b3377274888897e8c87b33011`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA9DF	5064 bytes
`font_01_sfnt_off0000bb15.bin` `626771899578f30ddc1c709075a18de17735712bb1ea58a4ad13ce0be2164e19`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBB15	16756 bytes
`font_02_sfnt_off0000ef72.bin` `bc775481b3234384b148fecb09583cee6edbe2a3f99fb4a17f3c618959311435`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF72	16340 bytes

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