PDF malware analysis — malicious · fd000f597ed2877a

MALICIOUS

PDF

41.3 KB Created: 2020-08-02 15:56:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a284e50e49bdc0e1cd3d5027bc31993c SHA-1: 8e3f85814893f1e2535ef373be42bfa71864fc95 SHA-256: fd000f597ed2877a821130f68e425943161573381ea65d10944e9f87be52ec1e

158 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded JavaScript and numerous links, many of which point to a link farm hosted on cdn.shopify.com, with a primary redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL for the redirector, suggesting a phishing or redirection attempt. The ML classifier strongly indicates maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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 JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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=beyonce+don+t+hurt+yourself+mp3
- http://files.thecosmicbrain.net/uploads/1/3/1/4/131453022/bejapatilij.pdf
- http://files.gerardgorman.com/uploads/1/3/0/8/130813546/1773785.pdf
- http://files.elizabethporeba.com/uploads/1/3/1/3/131379268/kakirunin-pomuwagewow-kolida.pdf
- https://cdn.shopify.com/s/files/1/0432/5664/3739/files/zugubeso.pdf
- https://cdn.shopify.com/s/files/1/0427/6014/3014/files/14712489360.pdf
- https://cdn.shopify.com/s/files/1/0437/4256/0405/files/tejidufonepulabaw.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76685421079.pdf
- https://cdn.shopify.com/s/files/1/0434/0488/6166/files/97874952.pdf
- https://cdn.shopify.com/s/files/1/0430/8933/0330/files/pick_up_soccer_denver.pdf
- https://cdn.shopify.com/s/files/1/0428/4357/0343/files/86365533471.pdf
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/lepigawokexuvawenowezi.pdf
- https://cdn.shopify.com/s/files/1/0430/9496/6429/files/livefonositivaserus.pdf
- https://cdn.shopify.com/s/files/1/0433/1087/4777/files/37423140459.pdf
- https://cdn.shopify.com/s/files/1/0431/1020/3545/files/63612770836.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78649322563.pdf
- https://cdn.shopify.com/s/files/1/0440/8626/3960/files/randy_harris_modern_physics.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_off00005ffc.bin` `a4f7cf720b38b8460088ed7eb9ce0b3271e9652cc3172b378af5e7a5b32e8c80`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FFC	5500 bytes
`font_01_sfnt_off0000729c.bin` `295f4ec11c8815e912e313fc896f641ac19169128c3fa58e58e4ce6e467b9251`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x729C	10324 bytes

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