PDF malware analysis — malicious · f7de399aea8a954a

MALICIOUS

PDF

36.3 KB Created: 2020-08-02 14:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 662dcc5e157767e7e19d9d77fe366535 SHA-1: 80645d4144d0f75538a5c5ad8539b4b9b96ab8ed SHA-256: f7de399aea8a954aaa3e54905adbbb9b10ea5b0dac6fdacf9716af66434fdc1c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=www.+register-+omron.+com', is flagged as a known malicious redirector. The document body contains obfuscated text and references to the redirector URL, suggesting an attempt to direct users to malicious infrastructure. The presence of numerous Shopify-hosted PDF links likely serves to obscure the malicious redirector and potentially improve search engine ranking for malicious content.

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=www.+register-+omron.+com
- http://files.natasha-biggs.co.uk/uploads/1/3/0/7/130739631/7876157.pdf
- http://files.mashamhistory.com/uploads/1/3/2/6/132695663/somiremubemibezil.pdf
- http://files.whiteswanenvironmental.org/uploads/1/3/1/4/131454034/kizuvufoduwelunozob.pdf
- http://files.sugarrushcustomcreations.com/uploads/1/3/0/9/130969820/sozexex.pdf
- https://cdn.shopify.com/s/files/1/0438/0708/0610/files/96546509822.pdf
- https://cdn.shopify.com/s/files/1/0433/5520/9879/files/86862236570.pdf
- https://cdn.shopify.com/s/files/1/0432/4071/8496/files/nosowetufeluxam.pdf
- https://cdn.shopify.com/s/files/1/0427/3248/6823/files/macroeconomics_krugman_3rd_edition.pdf
- https://cdn.shopify.com/s/files/1/0430/8549/6482/files/58209404301.pdf
- https://cdn.shopify.com/s/files/1/0433/4367/5560/files/xevegenuvomifowuwuv.pdf
- https://cdn.shopify.com/s/files/1/0435/7967/0689/files/tewexajiboxov.pdf
- https://cdn.shopify.com/s/files/1/0432/9524/4441/files/65669085103.pdf
- https://cdn.shopify.com/s/files/1/0434/3929/2577/files/39373089994.pdf
- https://cdn.shopify.com/s/files/1/0427/9291/1007/files/nulatatexiwotuforawadibu.pdf
- https://cdn.shopify.com/s/files/1/0427/8213/0332/files/84660730726.pdf
- https://cdn.shopify.com/s/files/1/0428/6598/3655/files/vulokomaduliwexojotapade.pdf
- https://cdn.shopify.com/s/files/1/0430/1085/0979/files/40562377218.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_off00005194.bin` `8b31c54404aac9a712a0945e8ba14cf02cb5eada72617aea0410f71b992ebd6a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5194	5048 bytes
`font_01_sfnt_off000062d8.bin` `ce5a91f54506c530975deebca4d9b914df22edb23a038ba104e343f09fa837be`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D8	9872 bytes

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