Malicious PDF — malware analysis report

Static analysis result for SHA-256 38193554124137b3…

MALICIOUS

PDF

52.6 KB Created: 2020-08-29 00:47:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ba373b17cf70020eed55adc355dd27b SHA-1: 7c9acbd99f2a225ec3e5c05856529a47ff371b55 SHA-256: 38193554124137b390e964d4645fa307f38cdbc9b72511fa350c5171a4302a91
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 text related to 'Wordscapes answers' and a URL that appears to be part of a link farm designed to attract search engine traffic. The primary malicious URL, https://ttraff.com/wix?keyword=wordscapes+answers+daily+puzzle+sept, is likely used to redirect the user 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=wordscapes+answers+daily+puzzle+sept
    • https://static.usrfiles.com/ugd/b8c837_86dd7df1111f44f0943b8e13ec3c3482.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e8281d17f484757a0ac67e31cd9e44d.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d400996ab0e4c05ba85024b67e10cf8.pdf
    • https://static.usrfiles.com/ugd/b8c837_1120cf36c456447ea4535e950cd98174.pdf
    • https://static.usrfiles.com/ugd/b8c837_b9464c5a347c4eaf88625084b4a2eb7a.pdf
    • https://static.usrfiles.com/ugd/b8c837_c35bd179ac7a4036a742c1aa8f7f46b5.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ea1c3959d844548b409d93a3d539406.pdf
    • https://static.usrfiles.com/ugd/b8c837_82ebb2b9cc4f49bcb732a2ef894610f3.pdf
    • https://cdn.shopify.com/s/files/1/0427/7331/5740/files/jirawevukemejezugipomuz.pdf
    • https://cdn.shopify.com/s/files/1/0461/8505/4361/files/fakiruvovebewojugit.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_off00008621.bin
5edd8df2f55d4a314ffafe017c24078fa2b479c9677a90b606d9ed06bc6a9d2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8621 5324 bytes
font_01_sfnt_off00009870.bin
76841be0e7bb60b0615d558f562269931b055063ece47c4ed2206f87f5f615af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9870 14984 bytes

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