Malicious PDF — malware analysis report

Static analysis result for SHA-256 5950075245e6b1fc…

MALICIOUS

PDF

57.9 KB Created: 2020-08-02 09:55:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 769750be971af32e4b74b1d7bccf7543 SHA-1: 771094a4dd631f1cb74863b907b751b21af3ad8a SHA-256: 5950075245e6b1fcd1c1d2b8b4993e11eed685de5b5dcafa9c0c42c66a3ff656
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains this URL, suggesting a lure to download a book, which then redirects to the malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is 'https://ttraff.com/pify?keyword=50+sombras+de+grey+libro+2+pdf'.

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.com/pify?keyword=50+sombras+de+grey+libro+2+pdf
    • http://files.paulnoordhof.com/uploads/1/3/2/7/132712315/6455214.pdf
    • http://files.gigilynfineart.com/uploads/1/3/0/8/130815303/patifipebararo_letadul_tezuwexiz_famovemipovali.pdf
    • http://files.lynnegobioff.com/uploads/1/3/0/7/130776502/koribuzisub-wupajedovux-busaruwimem-degonikilokelol.pdf
    • https://cdn.shopify.com/s/files/1/0428/1945/3095/files/pete_s_dx6_d3d_driver_1._77.pdf
    • https://cdn.shopify.com/s/files/1/0429/0517/4179/files/getopuxiserelivan.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7903/files/vovogofuforilo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1448/7190/files/kemakejokij.pdf
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/44249688808.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zovoxumaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/navidilamekox.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/jefavomomoridekijigar.pdf
    • https://cdn.shopify.com/s/files/1/0429/3797/4950/files/30810470981.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0679/files/24694312802.pdf
    • https://cdn.shopify.com/s/files/1/0432/5644/7136/files/54543794580.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/46184335702.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_off00009ff5.bin
c73a4a250351b5f04705e10bdc7fbf0cd9ccfb1f4d9e12ce02fbc02f9e61de03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FF5 5904 bytes
font_01_sfnt_off0000b3fb.bin
b4c9b4e364dc81e327896e274f32bf78220c7f792766e22f70aa96e0a7cb0fe0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB3FB 11308 bytes

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