Malicious PDF — malware analysis report

Static analysis result for SHA-256 23411c252eae8487…

MALICIOUS

PDF

33.6 KB Created: 2020-09-18 01:16:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e9088be7771b83cf7ee658cde32007b SHA-1: 342a6bfc7d19a5b01716d8c4345f8b99713f38f7 SHA-256: 23411c252eae8487fdc93f3792a3993d08deb238b46448f0d1fee650ab14c770
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including a critical link to a known malicious redirector. The document body text, though partially corrupted, contains keywords related to a Cuisinart slow cooker manual, suggesting a lure to trick users into clicking the malicious link. The primary malicious URL identified is https://ttraff.me/wix?keyword=cuisinart+slow+cooker+psc-625+manual, which is likely used to redirect users to further malicious content.

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.me/wix?keyword=cuisinart+slow+cooker+psc-625+manual
    • http://vosum.jenniferweber.org/uploads/1/3/1/4/131452988/guwutatutuva.pdf
    • http://files.forestchi.co.uk/uploads/1/3/0/7/130776602/jopege-muzozelijoji-wuluvevaxurekez-mimefulawuk.pdf
    • http://mebudof.isthisthepoint.com/uploads/1/3/1/4/131438416/482347.pdf
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/bezikowixujopiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/1579/7916/files/ganifaboxez.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/google_chrome_extension_facebook_video_er.pdf
    • https://73c7caaf-646c-4586-91d3-4bb78c951d70.filesusr.com/ugd/d38238_83699dff6033492085b582c60f5f3761.pdf?index=true
    • https://c6992dca-18e9-4bf6-9af1-9dda1cc825cc.filesusr.com/ugd/f84671_fb6f54319ddd468caf700713e45d13cd.pdf?index=true
    • https://6bab8047-d337-4196-a542-ddd20d39571e.filesusr.com/ugd/ae15ca_aa0e1fe52c6948379c755a27296de1e9.pdf?index=true
    • https://9d5a363e-0c16-4e71-a47a-47d3b975abbf.filesusr.com/ugd/edb4a7_8b3093bac4d64b4ebb18dd5a3383e81d.pdf?index=true
    • 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_off00004438.bin
6bf4f1cd055d9d0898926688b84a9482c6a187086ff3d0981ad5008827e47729		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4438 5584 bytes
font_01_sfnt_off00005738.bin
5be84dc4747c3ab05edba0bd8a760ec0d7efae3e305311dd18dd5d409251fe62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5738 10204 bytes

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