PDF malware analysis — malicious · 5478b456327a57a6

MALICIOUS

PDF

59.3 KB Created: 2020-07-31 14:50:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c24e51bafeb17482d5b18f8906b7054d SHA-1: 7edf3fcfd2c3e36928d4c3fa913b80b93262990c SHA-256: 5478b456327a57a6023f6e532fac0a4fa9b3d9925580a3963f1657a8fee60a3a

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, indicative of a link farm or SEO spam. The primary malicious URL identified is ttraff.com, which redirects based on a keyword search. While the document body is heavily obfuscated, the presence of numerous links, including one to a known malicious redirector, strongly suggests a malicious intent to lure users to external, potentially harmful, content.

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.com/wb?keyword=diziler%20seriler%20pdf%20test
- http://files.carolvoss.com/uploads/1/3/1/3/131381607/5083613.pdf
- http://files.drfrankrhame.com/uploads/1/3/0/8/130814535/kovesutamoj_xoriwofapevipuv.pdf
- http://files.visionplus.org/uploads/1/3/1/3/131384136/wuguvateweruboputat.pdf
- http://files.holistichealthactivation.com/uploads/1/3/1/4/131437778/1409502.pdf
- http://files.jessicabellauthor.com/uploads/1/3/0/7/130740193/neribip.pdf
- http://files.drfrankrhame.com/uploads/1/3/0/8/130814535/kovesutamoj_xoriwo
- https://cdn.shopify.com/s/files/1/0430/9558/9013/files/27679481905.pdf
- https://cdn.shopify.com/s/files/1/0428/5769/3347/files/58330609062.pdf
- https://cdn.shopify.com/s/files/1/0433/8148/9818/files/kofunabej.pdf
- https://cdn.shopify.com/s/files/1/0432/5716/8027/files/lofejit.pdf
- https://cdn.shopify.com/s/files/1/0432/5687/3128/files/tukededeziwiwajujesawoli.pdf
- https://cdn.shopify.com/s/files/1/0428/0342/9535/files/720912377.pdf
- https://cdn.shopify.com/s/files/1/0437/9138/4736/files/reselerusifavo.pdf
- https://cdn.shopify.com/s/files/1/0430/3428/0090/files/92553384894.pdf
- https://cdn.shopify.com/s/files/1/0429/5986/3961/files/28229767844.pdf
- https://cdn.shopify.com/s/files/1/0433/9708/7390/files/60878971070.pdf
- https://cdn.shopify.com/s/files/1/0430/7196/3296/files/suzanuzinufiwutojesu.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_off00009fcb.bin` `409754928b42b2cef4e47e37afde99f4e2128835e77a8039b05eede6d22dec6b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9FCB	4444 bytes
`font_01_sfnt_off0000aef9.bin` `95595139688db606f4a11f386b2984ea9cbb734b84e9809f4298c0ef3ba0487e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAEF9	16304 bytes

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