Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f69e79b1168e2d…

MALICIOUS

PDF

41.9 KB Created: 2020-09-08 02:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d3dc7fb07ad78fd54cc318c7f216e76 SHA-1: 4d61e4bb144b62f03448606fccdd9caec80a7dab SHA-256: 25f69e79b1168e2d694b53e87ea6a5c2418f34a942189056fb4edef6e1f4c2ce
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Bunker fuel trading platform' and the malicious URL itself. The PDF_SEO_LINK_FARM heuristic suggests the document is part of a larger link farm designed to attract traffic, with the primary malicious URL being ttraff.me.

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=bunker+fuel+trading+platform
    • https://cdn.shopify.com/s/files/1/0433/0949/8536/files/wiwegaruwu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6032/0669/files/libixodosepujepadopu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1125/files/rolonifovabezililaj.pdf
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/52213290369.pdf
    • https://cdn.shopify.com/s/files/1/0438/4188/0224/files/26906636482.pdf
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/4232381365.pdf
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/jigaxupomafizi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6542/6598/files/cellule_vgtale_schma.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73470001672.pdf
    • https://cdn.shopify.com/s/files/1/0432/4950/0328/files/54923220965.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_off00006680.bin
e4a7805b63c38a09465b9ca1b264cdb86034729f5fc0d909797696f3904dae7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6680 5296 bytes
font_01_sfnt_off00007879.bin
d5a7671218c55684b94f207ba5d17b51468824eff9a85649564d1ab43188151f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7879 10348 bytes

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