PDF malware analysis — malicious · 2d5b67cd530124e1

MALICIOUS

PDF

40.9 KB Created: 2020-08-01 04:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: af8fc68baf3c6cfa5930752a7c429c2d SHA-1: a807bad53fcf907489b631fd8faee6dcda1356da SHA-256: 2d5b67cd530124e106d33b57eaa03fe438c07730f2076154494b1196700ac75e

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 a malicious redirector link and a large number of external PDF links, indicating a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=poe+basalt+flask. The document body contains obfuscated text and URLs, further supporting the malicious intent of redirecting users to 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.cc/pify?keyword=poe+basalt+flask
- http://files.dorabramden.com/uploads/1/3/1/3/131382141/3729828.pdf
- http://files.naturegiveslife.com/uploads/1/3/0/7/130738764/xinuwaxexovosudu.pdf
- http://files.accelerateddentalacademy.com/uploads/1/3/1/4/131437380/gejaxikidow.pdf
- http://files.ajdugger.net/uploads/1/3/1/1/131163740/xozux.pdf
- http://files.rylandhowardaudio.com/uploads/1/3/1/8/131871433/putemibepoxen_tasojeboxepu_dijeputuza_kokaratogosefip.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62042090741.pdf
- https://cdn.shopify.com/s/files/1/0437/1618/2184/files/avi_mobile_movies.pdf
- https://cdn.shopify.com/s/files/1/0430/4732/1751/files/nasubufuw.pdf
- https://cdn.shopify.com/s/files/1/0432/5788/8936/files/43955658195.pdf
- https://cdn.shopify.com/s/files/1/0429/7188/9815/files/15223461616.pdf
- https://cdn.shopify.com/s/files/1/0437/3171/4202/files/2750184558.pdf
- https://cdn.shopify.com/s/files/1/0438/3975/0294/files/katofafadenanobab.pdf
- https://cdn.shopify.com/s/files/1/0428/5690/6918/files/dukejavix.pdf
- https://cdn.shopify.com/s/files/1/0433/6749/7880/files/fakipibewumixetelefex.pdf
- https://cdn.shopify.com/s/files/1/0429/7375/7603/files/43244344810.pdf
- https://cdn.shopify.com/s/files/1/0431/0676/2903/files/sanoxanufotige.pdf
- https://cdn.shopify.com/s/files/1/0432/9403/2025/files/26957678880.pdf
- https://cdn.shopify.com/s/files/1/0431/4392/1820/files/ugly_book.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_off00005aa9.bin` `240e58378c9c73816ba8d3412ca49a48b3cff0834a2151e4a944924f06c9e68f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5AA9	4872 bytes
`font_01_sfnt_off00006b52.bin` `7971793882d59bf539232e906752f3fbdff31b279f4db8ddf4da40ff05ef1ee2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B52	14040 bytes

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