Malicious PDF — malware analysis report

Static analysis result for SHA-256 555d4554d68710b3…

MALICIOUS

PDF

47.2 KB Created: 2020-08-30 19:55:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4914f4eb3f6061cbc91955c56d60381b SHA-1: 37360394bc4748824a737b4c03cded54841225a0 SHA-256: 555d4554d68710b3f258c3350309c289e290b8a7b2793c4548f48d9f5e318aae
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised with keywords related to 'menopause relief'. The document also functions as a link farm, pointing to numerous other PDFs hosted on cdn.shopify.com and static.usrfiles.com. The primary malicious link is the most critical IOC, as it is designed to redirect the user to a potentially harmful destination.

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=menopause+relief+purica+belundo
    • https://static.usrfiles.com/ugd/b8c837_46ffed815959402a96d0ae1f5e3eee2a.pdf
    • https://static.usrfiles.com/ugd/e4a001_4c803434253949eeb55c2d53d34587ae.pdf
    • https://static.usrfiles.com/ugd/0a052f_1dd7896bdb12436bb28f99e8f65fa6e9.pdf
    • https://cdn.shopify.com/s/files/1/0433/7818/0259/files/another_word_for_seeing.pdf
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/bowisupu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/jean_baudrillard_simulations.pdf
    • https://cdn.shopify.com/s/files/1/0438/4768/0162/files/modelo_balance_de_situacion_excel_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38140624907.pdf
    • https://cdn.shopify.com/s/files/1/0433/1814/9285/files/16998143889.pdf
    • https://cdn.shopify.com/s/files/1/0464/1344/7336/files/45305254063.pdf
    • https://cdn.shopify.com/s/files/1/0431/5181/8903/files/jerotusokinegifadibisu.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_off0000795d.bin
1c24b2e600331f6fafa0276299932da7ea4f4de457644d040cd3c5d1a0971179		 pdf-font-stream PDF embedded font (sfnt) at offset 0x795D 5292 bytes
font_01_sfnt_off00008b62.bin
4072661f5f0a26315b0a8c0c269774e4fde8f4a91bfc9ac3d96e51bfb2f73bd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B62 10824 bytes

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