PDF malware analysis — malicious · 2163ed95ade849ca

MALICIOUS

PDF

52.2 KB Created: 2020-08-08 19:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 06312eda944cfd7dc7f424227dfeb200 SHA-1: c707fc2bd69d3bb25dfc91906ebbb9f9b467892e SHA-256: 2163ed95ade849ca715403bbf4885c9d2d863886f43b59830350b113f2428e74

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains references to URLs that are part of a link farm, indicating a tactic to manipulate search engine results for malicious purposes. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful sites.

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=vivaldi+gloria+score+pdf
- http://files.alpenthalsdairygoats.net/uploads/1/3/1/4/131483118/lezodutixunurepexej.pdf
- http://winezor.designfitnesscentre.com/uploads/1/3/0/7/130738993/saboxu_zekupit_luxadigegixat_wenalatufov.pdf
- http://files.completehealthcareok.com/uploads/1/3/1/6/131606186/9874918.pdf
- https://cdn.shopify.com/s/files/1/0432/0083/9842/files/vafomolofepiraxug.pdf
- https://cdn.shopify.com/s/files/1/0433/9374/5046/files/11715649843.pdf
- https://cdn.shopify.com/s/files/1/0434/2785/6536/files/92894718479.pdf
- https://cdn.shopify.com/s/files/1/0431/5054/0964/files/zetoxekipapuwisagug.pdf
- https://cdn.shopify.com/s/files/1/0437/4783/6065/files/bible_concordance_kjv.pdf
- https://cdn.shopify.com/s/files/1/0433/3161/6918/files/tukola.pdf
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/lojiliwuvuram.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6166/files/33784864889.pdf
- https://cdn.shopify.com/s/files/1/0434/2562/8327/files/cambridge_english_dictionary.pdf
- https://cdn.shopify.com/s/files/1/0429/9161/6153/files/davupazokixuzodemobupawu.pdf
- https://cdn.shopify.com/s/files/1/0429/1959/2099/files/97387359365.pdf
- https://cdn.shopify.com/s/files/1/0429/6055/2085/files/nukemopok.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_off0000751d.bin` `5e5ec750245ee7818cd5aa10e226523fc605372bccf48455b0838e37df5747c0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x751D	5348 bytes
`font_01_sfnt_off0000876e.bin` `61add1f7a209562ab90be36a048441e7c3078a30c5fa814875532e4d995e95ec`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x876E	11896 bytes
`font_02_sfnt_off0000ae74.bin` `15a68420f1c377824b8c1fd571ac7c30556db1b4bc05006bf44ec3f6c6c83208`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAE74	16120 bytes

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