Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8119b1ea81aa9b…

MALICIOUS

PDF

52.3 KB Created: 2020-08-31 11:40:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a46a6fe73cd9e663f9e483cd23eaab0 SHA-1: 7f7f049fade52d950a3cfa4f1ace8a7091eecd1d SHA-256: cb8119b1ea81aa9b096df11a66365194d922fe20c82e2b2ac393ac6a46a91cd8
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=methode+de+musculation+pdf'. Additionally, another critical heuristic indicates a PDF link farm, with the first URL being 'https://cdn.shopify.com/s/files/1/0462/9309/0465/files/51706943857.pdf'. The document body, though heavily obfuscated, contains references to the redirector URL. These findings suggest the primary purpose is to redirect users to 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.cc/wix?keyword=methode+de+musculation+pdf
    • https://cdn.shopify.com/s/files/1/0462/9309/0465/files/51706943857.pdf
    • https://cdn.shopify.com/s/files/1/0432/9065/6936/files/mi_filosofia_del_triunfo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4285/6344/files/file_to_merge.pdf
    • https://cdn.shopify.com/s/files/1/0450/4390/8758/files/bodoni_72_smallcaps_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/jazujepemod.pdf
    • https://cdn.shopify.com/s/files/1/0427/5693/1751/files/9.pdf
    • https://cdn.shopify.com/s/files/1/0434/1923/8562/files/suzuki_burgman_650_owners_manual.pdf
    • https://static.usrfiles.com/ugd/b8c837_f66acebd9c5a44d2b41c188da780c883.pdf
    • https://static.usrfiles.com/ugd/3ce946_9a682bbcb86f496fa3be89b6c0d7befc.pdf
    • https://static.usrfiles.com/ugd/5af86b_ccec2a747542413a85d2557e4259706f.pdf
    • https://static.usrfiles.com/ugd/cec570_6b3514635a6940f581063cd9dd92e591.pdf
    • https://static.usrfiles.com/ugd/04c368_a91153223d534ab28af55351452dce98.pdf
    • https://static.usrfiles.com/ugd/b91566_1dc241ac68fe46a3b64a226f41adb15a.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_off00007a31.bin
928f76752be7fcae1d8afbd5478e0f0bba669640d42b40689ffadfaec987fe9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A31 5188 bytes
font_01_sfnt_off00008bbe.bin
e8dd5daced430d8e464060e81ec37f579ac39b963ed115c1c4d56528f3812f81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBE 13652 bytes
font_02_sfnt_off0000b4f9.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4F9 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.