Malicious PDF — malware analysis report

Static analysis result for SHA-256 e89055f5df087f48…

MALICIOUS

PDF

66.3 KB Created: 2020-08-31 19:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78f30c2235c059a4eb12a767cef526d8 SHA-1: 2a9b177372c6cc5d8cd585db4dea4f1efce613b2 SHA-256: e89055f5df087f48235922b2f970a90f8ac621dcb68b3ce9214e692d362e1069
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into visiting a potentially harmful site. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning attempt to drive traffic to malicious infrastructure.

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/wix?keyword=apache+tomcat+9+tutorial+pdf
    • https://static.usrfiles.com/ugd/7dd30d_ba5bd38b208148e5b2421fe566c66a50.pdf
    • https://static.usrfiles.com/ugd/a18aa6_fc22ca8465474e4396af369209bb012a.pdf
    • https://static.usrfiles.com/ugd/930050_7a6f49d96d254db7a95237a6933d3017.pdf
    • https://static.usrfiles.com/ugd/3bf302_8eec856c663941b5911a7ce350bfeae3.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_72c6a5c269874468922510026b55154f.pdf
    • https://static.usrfiles.com/ugd/8acad3_1b711505a1bf4bbbae1b06c8cc2cac17.pdf
    • https://cdn.shopify.com/s/files/1/0462/2689/9095/files/sematidugi.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/notis.pdf
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/43012208766.pdf
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/22085725722.pdf
    • https://cdn.shopify.com/s/files/1/0431/1384/0794/files/23298363455.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_off0000bbec.bin
955478c974b1e62b354632f32aa4cc29e4c4b0eaf3cc1215b2c3af7d757538fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBEC 5364 bytes
font_01_sfnt_off0000cdfb.bin
63837790aea01cd4ead24e1472c8c4348722270277958a446e2f697526482699		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCDFB 14644 bytes

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