Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf5d8cd21f45ce8d…

MALICIOUS

PDF

63.8 KB Created: 2020-09-02 08:43:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40b42cb634df0e6ef2815414ba58529c SHA-1: 9dbf4e396a17aa471d88d062270592dec4f4eac0 SHA-256: bf5d8cd21f45ce8d90df6fd7b7f01c5539c3ca774d02b8d93ddbbc82f1b8a51e
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm, indicating a phishing or scam attempt. The document body and embedded URLs suggest a lure related to invoices. The primary malicious URL identified is ttraff.com, which is likely used to redirect the user to a further malicious destination.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=sap+invoice+due+date+report
    • https://static.usrfiles.com/ugd/ce5d00_40fa9f6fc754433dbff4c151432efc52.pdf
    • https://static.usrfiles.com/ugd/e8506d_a119618004224fa8b2d3ec6f5bda280f.pdf
    • https://static.usrfiles.com/ugd/b8c837_447a6753bb234add81661ee07112d95c.pdf
    • https://static.usrfiles.com/ugd/9734e7_0e1288ebda9f44c884ee9b294d069af0.pdf
    • https://static.usrfiles.com/ugd/de3d83_16b0974b3f2e417193ad592d0023dbd3.pdf
    • https://static.usrfiles.com/ugd/5a1791_0b5bdae982cc402faa4fa734f10b6596.pdf
    • https://static.usrfiles.com/ugd/22739b_d9d8460d1ae5449fafb09616a23abc57.pdf
    • https://static.usrfiles.com/ugd/227d0f_a93663df95834c91b2ac063e28dd8560.pdf
    • https://static.usrfiles.com/ugd/e5412a_f63edd2c8fe940d5b94024355afcb9eb.pdf
    • https://static.usrfiles.com/ugd/1a89c8_fce0448c2a584e92b6d7ed91ef5e584f.pdf
    • https://static.usrfiles.com/ugd/764aaa_9f0a2dfe57064c01bc636718368eae1b.pdf
    • https://static.usrfiles.com/ugd/5ed537_b5faaf16a1c940998b30cad29d931224.pdf
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/aracely_arambula_la_patrona_soy_yo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7090/5756/files/duwilamodezer.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/body_image_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/cyclopedia_anatomicae.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_off0000b366.bin
a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8
pdf-font-stream PDF embedded font (sfnt) at offset 0xB366 2828 bytes
font_01_sfnt_off0000bd60.bin
de20127f976899c7fc240d465e1aaa978bfbe6a5dc34ca03e1cdcec348070748
pdf-font-stream PDF embedded font (sfnt) at offset 0xBD60 5020 bytes
font_02_sfnt_off0000ce8a.bin
d81d99cb9acfc74e4fb58d72ec0cc7206d0c76ac79a0ba05c5a02948f4584bd1
pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8A 10604 bytes