PDF malware analysis — malicious · 495e0cf916217d31

MALICIOUS

PDF

46.5 KB Created: 2020-07-31 08:09:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9e74cdd92b831cdf53872acdbb64b6f2 SHA-1: 08d864f5f6bce99dc5f164ee22afbbe1475ded3d SHA-256: 495e0cf916217d31160e9f04892cb24438fa0d14f04866f660eab29303cd7219

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'personality disorders test pdf', suggesting a social engineering lure. The presence of many external PDF links, including one to a redirector, indicates a link farm or redirection strategy to distribute malicious 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/pify?keyword=personality+disorders+test+pdf
- http://files.coachtbasketball.com/uploads/1/3/2/6/132681971/b15c9ba1731.pdf
- http://files.kristinandrewsyoga.com/uploads/1/3/2/6/132695586/3509892.pdf
- http://files.ouradventuresinfrance.com/uploads/1/3/0/9/130969429/03f3eaaf500.pdf
- http://files.ouradventuresinfrance.com/uploads/1/3/0/9/130969429/03f3eaaf5
- https://cdn.shopify.com/s/files/1/0430/1606/1091/files/18986677346.pdf
- https://cdn.shopify.com/s/files/1/0438/8726/3899/files/risovixagufakog.pdf
- https://cdn.shopify.com/s/files/1/0431/8806/0320/files/13932751290.pdf
- https://cdn.shopify.com/s/files/1/0433/6985/7176/files/sifitogepobasotosujuwet.pdf
- https://cdn.shopify.com/s/files/1/0437/4750/8385/files/1088725443.pdf
- https://cdn.shopify.com/s/files/1/0432/9635/8565/files/jetobidu.pdf
- https://cdn.shopify.com/s/files/1/0437/8725/5970/files/24836077939.pdf
- https://cdn.shopify.com/s/files/1/0428/4229/2390/files/99385726317.pdf
- https://cdn.shopify.com/s/files/1/0438/9208/0795/files/ranabuderujagosokuxajawej.pdf
- https://cdn.shopify.com/s/files/1/0434/2031/9893/files/tinuwalodojasatokeliba.pdf
- https://cdn.shopify.com/s/files/1/0438/1586/2434/files/zomezanimamewewifemulajos.pdf
- https://cdn.shopify.com/s/files/1/0432/5113/8715/files/tixuputumogabim.pdf
- https://cdn.shopify.com/s/files/1/0431/0899/1140/files/19914427146.pdf
- https://cdn.shopify.com/s/files/1/0431/7632/9373/files/36835906613.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_off00007899.bin` `865ad45335dfe4c4d6c9e4cb735a769036b25e187a32167b51b2bf1d0afd10e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7899	4928 bytes
`font_01_sfnt_off00008969.bin` `12a709d55dec54d91cefd5797cad54108a86b684d4ac700350fcf1bfab907f41`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8969	10416 bytes

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