Malicious PDF — malware analysis report

Static analysis result for SHA-256 19ee125140118e62…

MALICIOUS

PDF

51.4 KB Created: 2020-09-04 04:40:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7233ef3525a79399fec9cbc3ad53b097 SHA-1: 2e3aaa1b3a601c040cc3a0d6cc512327e845ac22 SHA-256: 19ee125140118e629d058e456e63c30e632c111e4df941f8363db21988a3fab5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to its inclusion of a large number of external links, a technique often used for SEO manipulation or to distribute further malicious content. One of the embedded URLs, 'https://ttraff.me/wix?keyword=bora+bicha+ke+bhojpuri+song', is flagged as a known malicious redirector. The document body contains garbled text along with the same malicious URL and several benign-looking PDF links hosted on Shopify, suggesting a link farm or redirection scheme.

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=bora+bicha+ke+bhojpuri+song
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/validating_subscriptions_aoe2.pdf
    • https://cdn.shopify.com/s/files/1/0437/5802/6903/files/wuwobekutagosabimugi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/34762479972.pdf
    • https://static.usrfiles.com/ugd/b5aed9_f6af14a8b0674f99ac9f218b77d55f35.pdf
    • https://static.usrfiles.com/ugd/96bf9d_6f02f277df7e48d5b6e6ab90e5a6401c.pdf
    • https://static.usrfiles.com/ugd/277b62_5d19107f35c042de86e3335a4cf1a667.pdf
    • https://static.usrfiles.com/ugd/ed2d23_e22a031b260b4398b8132e3c6458e5a8.pdf
    • https://static.usrfiles.com/ugd/3d0627_3e19118570844e259788e6d04e032053.pdf
    • https://cdn.shopify.com/s/files/1/0432/2128/7080/files/alimentos_saludables_y_no_saludables.pdf
    • https://cdn.shopify.com/s/files/1/0439/5171/8558/files/94289064800.pdf
    • https://cdn.shopify.com/s/files/1/0443/3369/5132/files/precalculus_with_limits_3e_chapter_8.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.

FilenameKindSourceSize
font_00_sfnt_off00006aef.bin
4ff66a4bdc1407b4bd3fe42c9eda2e832beb7b3a482c88e4e723a83c6c2df35b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEF 5492 bytes
font_01_sfnt_off00007da0.bin
2cd5cba97d361d6481b8aa568620767bf0a321acaebd2082db27a34d69d15aa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA0 14192 bytes
font_02_sfnt_off0000aae4.bin
4d352d6fa70500bb26d0fd1e905f4d5911c0c8f001e7ce903bbe7d58b190fb69		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAAE4 6372 bytes

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