Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9ce9d0cf565b944…

MALICIOUS

PDF

40.8 KB Created: 2020-08-30 13:25:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 25376c40d09d09abb989ca3792ce7fde SHA-1: a98285f3576c16bcff78e4b1e8704153793a0f1b SHA-256: c9ce9d0cf565b9441f3cbd717dd6961f01ce0ce15d031e0974e360d546d58121
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for a game launcher. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms this, pointing to ttraff.ru. The document body also explicitly contains the malicious URL and a benign-looking link farm, suggesting a social engineering lure to drive traffic to malicious sites.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/wix?keyword=rise+of+the+tomb+raider+launcher+download
    • https://static.usrfiles.com/ugd/8b49c6_dce171e40a9d4c8a850193d73bbe4faf.pdf
    • https://static.usrfiles.com/ugd/b8c837_9c5e88d230c347a6a819567be00ac3b9.pdf
    • https://static.usrfiles.com/ugd/e745be_b573c44267b141a285a36c240d7260b8.pdf
    • https://static.usrfiles.com/ugd/9219f8_37063b1f790f41988e941b51597ac077.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57955619809.pdf
    • https://cdn.shopify.com/s/files/1/0432/6621/2003/files/32470893040.pdf
    • https://cdn.shopify.com/s/files/1/0431/5004/9448/files/loxabujimokudipemazomis.pdf
    • https://cdn.shopify.com/s/files/1/0450/8313/2056/files/react_native_cache.pdf
    • https://static.usrfiles.com/ugd/f967ac_c06c80e409a248d5932462191a0d5889.pdf
    • https://static.usrfiles.com/ugd/b8c837_c26904b176ba4d1dbcdc386cbf40fb12.pdf
    • https://cdn.shopify.com/s/files/1/0434/8477/4552/files/fobofuwabijotovazarinuli.pdf
    • https://cdn.shopify.com/s/files/1/0434/3100/2269/files/ralitetusewepefikutena.pdf
    • https://cdn.shopify.com/s/files/1/0434/5095/7991/files/72822760677.pdf
    • https://cdn.shopify.com/s/files/1/0435/2373/5720/files/siwivol.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_off00005fe2.bin
7ed1435485bf5941157115d3f49aff2197e954bdafc16e0e0652203a6f249b50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE2 5500 bytes
font_01_sfnt_off0000727d.bin
c301cf7332bf33c28ece8555beea378e15e7cceec05234cc53da9a1969aa18fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x727D 10544 bytes

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