Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad3e9f4860fd05a7…

MALICIOUS

PDF

45.3 KB Created: 2020-09-01 00:30:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88552a22e6931b5b39265540a6efce8c SHA-1: ced6c8ef043ca5c54ad7cf4f9965b69ca3832512 SHA-256: ad3e9f4860fd05a71aab005ea96bc9a1386702b80bef33159117f5092fb87956
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as a design template. This suggests a phishing or scam attempt to redirect users to malicious content. The file also contains a large number of links to other PDFs, likely for SEO manipulation to improve the visibility of the malicious redirector. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious URL is the primary indicator of compromise.

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/wix?keyword=bootstrap+4+form+design+template
    • https://static.usrfiles.com/ugd/7198c1_20b9aea9811a448cbb0443d1e808ae55.pdf
    • https://static.usrfiles.com/ugd/529dbf_5274c91eb72d42c2a730bc93ed8f2af7.pdf
    • https://static.usrfiles.com/ugd/12dc78_7314200b798b4ac09bd2d323c1f964a3.pdf
    • https://static.usrfiles.com/ugd/5b9365_28966a941c6c4a26a1eb50d86216fce0.pdf
    • https://static.usrfiles.com/ugd/111c46_551497e1951841acaa2b96e1550973e3.pdf
    • https://static.usrfiles.com/ugd/b8c837_492ad1474a104fb0b571379809bf4038.pdf
    • https://static.usrfiles.com/ugd/a8ca0f_124dd31efc824cf58c1fc290c1ddc9c2.pdf
    • https://cdn.shopify.com/s/files/1/0433/7028/3166/files/the_necklace_anticipation_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/3883/3831/files/resowiwobufuzelixufov.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/97167641058.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_a974ee5039ab4b0f8ad34a5cce0e3958.pdf
    • https://static.usrfiles.com/ugd/3aee12_a392ec85c5ac4d44b21487c961b96c11.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.

FilenameKindSourceSize
font_00_sfnt_off000061f0.bin
61532ae44e24a613449fb4a69ad21df2cab1e3116543edbba6b58d7f9d11d759		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61F0 5500 bytes
font_01_sfnt_off0000749c.bin
dbc244dd94d71d30d32917a93c9eccc55891d318d79a2a5a878325131d1e8e7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x749C 16924 bytes

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