Malicious PDF — malware analysis report

Static analysis result for SHA-256 96839062b6891e94…

MALICIOUS

PDF

41.6 KB Created: 2020-09-07 05:49:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a27a60511feef61e1cd675c027e5bcb SHA-1: 2fc5378a9a0ad6d4a592c3fb8612741398a48071 SHA-256: 96839062b6891e9474fa66f83d67b8d4b602a05b420eec49d265d714e4f11811
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm. One of the primary links, 'https://ttraff.me/wix?keyword=cloudformation+template+lambda+triggers', is flagged as a malicious redirector. This suggests the document is designed to drive traffic to malicious infrastructure, potentially for SEO poisoning or to deliver further malware. No scripts were extracted from this sample.

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=cloudformation+template+lambda+triggers
    • https://cdn.shopify.com/s/files/1/0434/7478/0312/files/ccie_sp_v4._1_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0430/0269/1743/files/acetilcisteina_ems_bula.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87195604050.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/67965233489.pdf
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/aviones_alemanes_segunda_guerra_mundial.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/14055924329.pdf
    • https://cdn.shopify.com/s/files/1/0451/8608/9109/files/koxoweranat.pdf
    • https://static.usrfiles.com/ugd/b444d4_38347fd765c849ba9ebf5488f9ec8639.pdf
    • https://static.usrfiles.com/ugd/9c66ff_3d4e668a6bb940fb9745905bd3a7f134.pdf
    • https://static.usrfiles.com/ugd/aef5b7_a60baa9d59904df3b66d90642aabdb2e.pdf
    • https://static.usrfiles.com/ugd/0c268c_759fb0064b47444cb9779fb5862bffb6.pdf
    • https://static.usrfiles.com/ugd/a382ee_4efac273479c44eebdec62d080e864d9.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_a86113c532a249708f7e0e140c37a516.pdf
    • https://static.usrfiles.com/ugd/d78803_85a7c0cf28254e44b25904697f6266db.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_off0000626a.bin
6527a067aeb304583ad30974880606c5c375ae76cb9022683d94ce9274f89901		 pdf-font-stream PDF embedded font (sfnt) at offset 0x626A 5404 bytes
font_01_sfnt_off000074a6.bin
0c60da03529ed40447d835143ea76c67d056c4e2e03685425258574bb3ce8ffe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74A6 10956 bytes

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