Malicious PDF — malware analysis report

Static analysis result for SHA-256 92036c0a68655546…

MALICIOUS

PDF

43.9 KB Created: 2020-08-20 23:56:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 697d230f88c26a4ceff0f62704c492b0 SHA-1: c5795cecbe1c322bd9b6e23c39915a55e249d1cc SHA-256: 92036c0a68655546b183fe7252305319d1859a5daa9b7004743f265a24a6bdcd
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though partially corrupted, suggests a lure related to 'Cabernet sauvignon nutrition information'. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content. 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.ru/pify?keyword=cabernet+sauvignon+nutrition+information
    • http://pidokote.mbradshawjoinery.com/uploads/1/3/0/7/130738799/sasibaxupituxegom.pdf
    • http://totidan.comledcenter.com/uploads/1/3/0/8/130814070/bafonavadav.pdf
    • http://bunaxato.printable-ebooks.com/uploads/1/3/1/4/131437508/5ea60cbd4a.pdf
    • http://woserike.yumandgetit.com/uploads/1/3/1/8/131856772/4046748.pdf
    • https://cdn.shopify.com/s/files/1/0432/0965/4436/files/bivivotapumirunapez.pdf
    • https://cdn.shopify.com/s/files/1/0445/7175/4655/files/peter_handke.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0486/files/87964619605.pdf
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/mecanismo_de_absorcion_del_calcio.pdf
    • https://cdn.shopify.com/s/files/1/0433/8017/9100/files/88860165110.pdf
    • https://cdn.shopify.com/s/files/1/0429/0389/6230/files/jozuxaxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/1764/9819/files/aosp_extended_lenovo_a6000.pdf
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/about_face_hackworth.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.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_off00006332.bin
46c5b7047c60edc64b7c2283182a91ab30155993b9b3de52a895ee4ae6a1e9e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6332 5160 bytes
font_01_sfnt_off000074b7.bin
4c4a29c4f44562a00768b095890254ef653637d7b6846eaac0fb50646bd2ad08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B7 15028 bytes

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