PDF malware analysis — malicious · cc83bb05071c158f

MALICIOUS

PDF

44.6 KB Created: 2020-09-07 13:30:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 02a560b8a4d0efc7865bfd9bfc78847c SHA-1: dcb443a5385d90127d27bb268eac0e2b79f30a56 SHA-256: cc83bb05071c158f50bc117d485165546062f2d0db3b92358bfc3c1504371ba1

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a search result for 'carnatic music lessons in malayalam pdf'. This link, https://ttraff.me/wix?keyword=carnatic+music+lessons+in+malayalam+pdf, is designed to lead the user to potentially harmful content. The PDF also features a large number of external links, many of which point to benign content, suggesting a link farm or SEO manipulation tactic to mask the malicious redirector.

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.me/wix?keyword=carnatic+music+lessons+in+malayalam+pdf
- https://static.usrfiles.com/ugd/bf0735_f988d46f37054de3b7e73561e9f022de.pdf
- https://static.usrfiles.com/ugd/9ea9b6_4389b8a21dfa4d9391c397b578d7e472.pdf
- https://static.usrfiles.com/ugd/fedf23_5b90032e856046b59660dcde5dde8b12.pdf
- https://static.usrfiles.com/ugd/b8c837_595645a606b9452192fa9041e802d36b.pdf
- https://static.usrfiles.com/ugd/21a131_dc938ea9d36c4324882e13d24990d1aa.pdf
- https://static.usrfiles.com/ugd/efc97f_4f7d6263978b47d28a64e005f485980c.pdf
- https://static.usrfiles.com/ugd/cc15ef_998b3b52acfa43958a99eb63c07ec902.pdf
- https://cdn.shopify.com/s/files/1/0432/5313/7570/files/gipevuluja.pdf
- https://cdn.shopify.com/s/files/1/0454/2958/8124/files/sslc_maths_model_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/caso_ayotzinapa_2020.pdf
- https://cdn.shopify.com/s/files/1/0435/9464/5672/files/nimanilugedinawe.pdf
- https://cdn.shopify.com/s/files/1/0458/2866/9603/files/12082506756.pdf
- https://cdn.shopify.com/s/files/1/0438/2221/9421/files/92482294656.pdf
- https://cdn.shopify.com/s/files/1/0438/1147/1522/files/tratamiento_del_cancer_de_tiroides.pdf
- https://cdn.shopify.com/s/files/1/0428/5572/7260/files/60414371359.pdf
- https://cdn.shopify.com/s/files/1/0432/8239/9390/files/cccp_codec_pack_free.pdf
- https://cdn.shopify.com/s/files/1/0436/9743/8875/files/bifibimosemifufibivud.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/
- https://cdn.shopify.com/s/files/1

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000070c1.bin` `08de2d3631ec9fa285488786666d90150bfd3f35b5dbdc003692a65a881ca489`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70C1	5308 bytes
`font_01_sfnt_off000082c1.bin` `3d836be5f3a7a04e728d9624c32dded0fbe75bd44f137c506c6ad26eae650e06`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82C1	10296 bytes

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