Malicious PDF — malware analysis report

Static analysis result for SHA-256 317dab6922653c55…

MALICIOUS

PDF

35.7 KB Created: 2020-08-31 05:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78c1e78ba7d16c63796bb5abf4394320 SHA-1: 6311b2638bf0069eed59b60fd15554042b80ff61 SHA-256: 317dab6922653c558e6b3d2d8de72af19cffe529fcfd0b6869be2c18dfd7ee75
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/wix?keyword=bailando+spanish+mp3+song+download+p', is designed to lure users with a deceptive search query. The file also exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0431/0577/9863/files/daxifemevidojo.pdf'. The primary attack pattern involves social engineering through a deceptive link disguised as a song download.

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=bailando+spanish+mp3+song+download+p
    • https://cdn.shopify.com/s/files/1/0431/0577/9863/files/daxifemevidojo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/fuwovutof.pdf
    • https://cdn.shopify.com/s/files/1/0433/4888/5662/files/black_max_lawn_mower.pdf
    • https://static.usrfiles.com/ugd/ae15ca_9aaab240ccea4ddfb1686957ac683f85.pdf
    • https://static.usrfiles.com/ugd/e23fbb_b03357b412f544c19d03f266ffc9c42d.pdf
    • https://static.usrfiles.com/ugd/ea5d7b_90804b9a2b384b6180875bc4a4129fc6.pdf
    • https://static.usrfiles.com/ugd/ace02d_43119f754e3042758397511c92c20044.pdf
    • https://static.usrfiles.com/ugd/21e6f2_d955284c169e43bba7f41a5ceaf89b01.pdf
    • https://static.usrfiles.com/ugd/b8c837_68ddddd5a1754db5928c765591c206e2.pdf
    • https://static.usrfiles.com/ugd/b8c837_042c7a517b0643419b96d90e413b3267.pdf
    • https://static.usrfiles.com/ugd/b8c837_bce76958acca4ee8b33d930e28c5ea4c.pdf
    • https://static.usrfiles.com/ugd/cc14e4_fc4a5d2909c0416fbdd42d4851136032.pdf
    • https://static.usrfiles.com/ugd/b8c837_8b921cfaf69c4d6ab3c0c9fec767e3f7.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_off00004dab.bin
b99b6ff47b07ba97fd8d39612c4f2848df940500fa05e0f59fe7ea8aeac68dc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DAB 5584 bytes
font_01_sfnt_off00006089.bin
47a01faa0a54c16884d61f8c1c2c3365928d637ea847f224d8339b8a57eb4c2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6089 9820 bytes

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