Malicious PDF — malware analysis report

Static analysis result for SHA-256 d54389555f73a7f6…

MALICIOUS

PDF

48.3 KB Created: 2020-08-30 08:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90789fb589bd6be79e3d0e3f300e13e7 SHA-1: 333cdd035288a453cc25326388d1e5511e43ac75 SHA-256: d54389555f73a7f612080d7e3ada58b1c65a7e63c76e209d882409c8b2b0fe32
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=maserati+granturismo+buyers+guide'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links, including one to a Shopify URL that appears to be part of a delivery chain. The document body, though heavily obfuscated, contains text related to a 'Maserati granturismo buyers guide' and the malicious URL, suggesting a lure to entice clicks.

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=maserati+granturismo+buyers+guide
    • https://cdn.shopify.com/s/files/1/0469/3347/5483/files/dj_khaled_grateful._zip.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7780/files/bearing_dimensions_skf.pdf
    • https://cdn.shopify.com/s/files/1/0433/4069/3662/files/cooking_academy_mac.pdf
    • https://cdn.shopify.com/s/files/1/0429/8034/3967/files/gutozoxumigamububotipudu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/55489952893.pdf
    • https://static.usrfiles.com/ugd/b8c837_0615030b34e94baab4a6cb96bc143ad6.pdf
    • https://static.usrfiles.com/ugd/b8c837_5cf9f4b5e50c407bb75fc8dc116f831f.pdf
    • https://static.usrfiles.com/ugd/e3c460_43e28661806c4b00baa0a5d01a096f90.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_c2a9538d1ea140fea3d2c0921d00cb99.pdf
    • https://static.usrfiles.com/ugd/7f16bd_d1a8e3b0e9574d99ba5beb18304c2442.pdf
    • https://static.usrfiles.com/ugd/b8c837_ee97749bb1d04e2f90c42d5872c6ea91.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_off00007d4b.bin
2e54f30175426c79745f544493916178fd51a6c9618986d897c02c2ba706650c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4B 5360 bytes
font_01_sfnt_off00008f75.bin
ae5297775a2f25496cd138844b9cf6134cfd2ef424f205e308718c3d69844c49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F75 11284 bytes

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