Malicious PDF — malware analysis report

Static analysis result for SHA-256 a290160ec2dae6e7…

MALICIOUS

PDF

46.6 KB Created: 2020-08-29 20:38:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4713552c09cbc4f99f02446ae71ed527 SHA-1: 165831bd35c16a7d96ae6d2790980289258ec2fe SHA-256: a290160ec2dae6e7da3cd168b27736629acb69927a339f2fcd76404e2aa0e1f3
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=lego+star+wars+3+psp+red+brick+locations'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body contains garbled text but includes the target URL, suggesting a lure to a malicious site.

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=lego+star+wars+3+psp+red+brick+locations
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/27417795359.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/watch_batman_v_superman_online_for_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/8067/8557/files/26892273691.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdf
    • https://cdn.shopify.com/s/files/1/0431/5339/1765/files/dunej.pdf
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/54070977305.pdf
    • https://cdn.shopify.com/s/files/1/0438/4918/7493/files/shepard_smith_reporting_fox.pdf
    • https://cdn.shopify.com/s/files/1/0431/6590/9146/files/manual_administracion_hotelera.pdf
    • https://cdn.shopify.com/s/files/1/0429/8306/3715/files/great_is_thy_faithfulness_sheet_music_c.pdf
    • https://static.usrfiles.com/ugd/b8c837_d22341427f8f4d27855f576d3dc0180f.pdf
    • https://static.usrfiles.com/ugd/b8c837_62ead4b5d7db4e8381977a53c9133e96.pdf
    • https://cdn.shopify.com/s/files/1/0434/6678/4932/files/42077062.pdf
    • https://cdn.shopify.com/s/files/1/0428/2938/1791/files/charting_by_exception.pdf
    • https://cdn.shopify.com/s/files/1/0436/2646/3385/files/bifanovegoma.pdf
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/39692769068.pdf
    • https://cdn.shopify.com/s/files/1/0431/7682/0890/files/96827121142.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_off0000763f.bin
2f0ca0399d31280be7ac373f1c1b9a061bafebc4b0ed2cf14823af6fdef5d24a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x763F 5644 bytes
font_01_sfnt_off00008992.bin
3b6e8911c213d7ee0c9bc02b7f23e6160a760b8f1863180832c4e357f0c1abad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8992 10392 bytes

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