Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e215bcb45f65fce…

MALICIOUS

PDF

39.3 KB Created: 2020-08-29 04:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5108618de7d8fb7ba6bbb70eefa7055b SHA-1: b33899c79df9e214ef2f1be29fba921de08c260c SHA-256: 7e215bcb45f65fced89177a6437db4ab18bf6bf3309e6f842ee784f216c1d838
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=krampus%253A+the+yule+lord', which is flagged as malicious. This suggests the document's primary purpose is to lure the user to this malicious site, likely for further exploitation or phishing.

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.cc/wix?keyword=krampus%253A+the+yule+lord
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/42475779951.pdf
    • https://cdn.shopify.com/s/files/1/0432/5172/8546/files/31464809620.pdf
    • https://cdn.shopify.com/s/files/1/0453/6303/6315/files/2792132434.pdf
    • https://cdn.shopify.com/s/files/1/0435/4313/4362/files/lulitego.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d641b0025714ec3a1553e02e6d82d34.pdf
    • https://cdn.shopify.com/s/files/1/0435/6043/5871/files/xefirusabaxizuwigijikub.pdf
    • https://cdn.shopify.com/s/files/1/0436/3704/7449/files/vewivukinixikabulik.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/tojipamogi.pdf
    • https://cdn.shopify.com/s/files/1/0439/8999/1582/files/15755785955.pdf
    • https://cdn.shopify.com/s/files/1/0430/5790/5818/files/antes_de_partir_livro.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_off00005c42.bin
75900c146045184ad4f9be7e5948a4b9ed1d820c94d33d74cc8d69d3b322829f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C42 5320 bytes
font_01_sfnt_off00006e41.bin
e9eb9bb6c7d3575ffa8139eaba1adec79321e468c436196a56ae53b0780daf20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E41 10280 bytes

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