Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ea9cf77416b7ec…

MALICIOUS

PDF

53.0 KB Created: 2020-09-13 07:44:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b7b88ff06d8a2035ac7f0303ff3ba9e SHA-1: 24a0ddc7a3a6cc9be9678b414747cf236f97df64 SHA-256: e9ea9cf77416b7ec3f359ad5ffaa3c0d0b48981d6a44e0c81fc482bdc3fb52e2
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=listing+boss+pdf', which is flagged as a malicious redirector. This suggests the document's primary purpose is to redirect the user to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.club/wix?keyword=listing+boss+pdf
    • http://gezez.uconnpremedicalsocietynewsletter.com/uploads/1/3/1/3/131379312/jolikalidekused.pdf
    • http://veverux.seansabastian.com/uploads/1/3/2/7/132710712/74350.pdf
    • http://getosa.wekeepyoumotivated.com/uploads/1/3/0/7/130739287/6037708.pdf
    • http://ludub.otellis-restaurant.com/uploads/1/3/1/4/131410227/5232632.pdf
    • https://cdn.shopify.com/s/files/1/0434/7035/6637/files/xanere.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2058/files/annexure_1.pdf
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/30375163141.pdf
    • https://static.usrfiles.com/ugd/ab0441_994e152206c04697b0152ba2534002c4.pdf
    • https://static.usrfiles.com/ugd/3a38e0_c29123bce1744fdaa74ec1321e6a701c.pdf
    • https://static.usrfiles.com/ugd/74e905_703162e4984b4e0782bbc8e20186016b.pdf
    • https://static.usrfiles.com/ugd/fb41f9_6817602b82d64656aba3c53780b3e4f2.pdf
    • https://static.usrfiles.com/ugd/7ad284_72baf7bf36554411b270efc1ca93f17a.pdf
    • https://static.usrfiles.com/ugd/b972d5_051b68cf56144e7ea34396af3d4bc529.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_off00009217.bin
4a3588c35d4cb0e4fd74cf8f1b1b0b0ca34cd9a297ed13c3691eba0f22b894e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9217 4952 bytes
font_01_sfnt_off0000a30b.bin
c06786787a63c5e556796729d4816a54753021eccff28a11b0fc8a5014598ca3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA30B 10644 bytes

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