Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed121525b9eb8b9f…

MALICIOUS

PDF

46.9 KB Created: 2020-08-30 20:10:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ba2f957f202429972f3bf3dda61934f SHA-1: 174e4962f3bd9ede3e9e7b54480f516e8cc834f7 SHA-256: ed121525b9eb8b9fa13a07b6b5e496ea15af5aff9d63fa36ed5994bfda60872c
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to funnel victims to further malicious content. The document also contains a large number of embedded links to other PDFs, suggesting a link farm or SEO poisoning tactic. The presence of a 'download button' heuristic further supports a lure-based attack. No scripts were extracted, but the primary attack vector is the malicious redirector link.

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.cc/wix?keyword=starwars+the+force+awakens+torrent
    • https://cdn.shopify.com/s/files/1/0430/5348/2135/files/74687531890.pdf
    • https://cdn.shopify.com/s/files/1/0434/9942/1856/files/20530375961.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/vizamogolo.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a738bd1569b4c1b8ac1690591a78efb.pdf
    • https://static.usrfiles.com/ugd/b8c837_e7f2821b128948499859d5dc8850d0dc.pdf
    • https://static.usrfiles.com/ugd/d7ba0f_764ef0f615fc41e88ec4764a1af15e7b.pdf
    • https://cdn.shopify.com/s/files/1/0432/9521/1680/files/garuralelibuviful.pdf
    • https://cdn.shopify.com/s/files/1/0429/7247/9647/files/somalasidozixujutixagiwi.pdf
    • https://static.usrfiles.com/ugd/09273f_931d308be849481898d1f954a6465c2b.pdf
    • https://static.usrfiles.com/ugd/b8c837_2d77f2b57c8a43fd8b1c7c0d218342df.pdf
    • https://static.usrfiles.com/ugd/b8c837_7c92dc5782b14e0b80868bdc27535de6.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_off00006da7.bin
fabdbf3f40b2fa334d202284cfb7179043a1af8f712eb0990eeb5a6248f371c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA7 5196 bytes
font_01_sfnt_off00007f5a.bin
4fb3b7d166f8112be35ed6f2802ad15ee96ca7bb7e757974b6df053c46b3e27f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5A 15304 bytes

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