Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae372e401e206331…

MALICIOUS

PDF

34.5 KB Created: 2020-08-31 08:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 821344fd55ed480ebd48046842803dd1 SHA-1: 9e93d1e0fc3b5c7ba2c44c678666e872b0d6851e SHA-256: ae372e401e20633171bd01e6c803230a26cea0504aecb511bfaa8480bf6e0ca4
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of external links, with the primary one being a redirector. The document body contains text that appears to be a title, 'Novela india una historia de amor ca', which is likely a lure. The embedded links, including the primary malicious redirector, are the highest priority IOCs.

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=novela+india+una+historia+de+amor+ca
    • https://cdn.shopify.com/s/files/1/0436/0306/7038/files/bodylastics_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0440/4019/2150/files/branches_of_chemistry_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/59457663084.pdf
    • https://cdn.shopify.com/s/files/1/0433/5416/1310/files/history_of_badminton_in_the_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0430/8484/1124/files/87214359369.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/xavafuliruwewejelimepozig.pdf
    • https://cdn.shopify.com/s/files/1/0431/4044/8407/files/94519692916.pdf
    • https://cdn.shopify.com/s/files/1/0436/0631/1070/files/64768527755.pdf
    • https://cdn.shopify.com/s/files/1/0429/9007/6057/files/lukezadetuzimak.pdf
    • https://static.usrfiles.com/ugd/cc14e4_8f3c6c5d48184e76bb7b515656e560a7.pdf
    • https://static.usrfiles.com/ugd/98e298_7f979e6362cb49e0801324549aca46a6.pdf
    • https://static.usrfiles.com/ugd/b8c837_6611383f101e4964bd06c5f8bab29af1.pdf
    • https://static.usrfiles.com/ugd/d54300_c6ffeecfb9514306b043c836c6a9c360.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_off000047b7.bin
1bf479f76cb8d3fa293d6743c9e8fa6256b240f7dc1bdf7dd793df81cad84df9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47B7 5208 bytes
font_01_sfnt_off00005944.bin
f28d1951d99b812f53f783a9149580e03c1ba4a0059c04abb59e03cc0c5249b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5944 10500 bytes

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