Malicious PDF — malware analysis report

Static analysis result for SHA-256 296843fb92873319…

MALICIOUS

PDF

44.1 KB Created: 2020-08-14 23:38:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4af0420071f046ca79c8d955915ef781 SHA-1: cb1e0e9ec3ceb7a29dddfb4219ceafd363ad022a SHA-256: 296843fb92873319a5998a2fd283d7ff77c1e70fcc28e4e637a6bfcdbbf10cf0
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text related to a 'Red dye diesel safety data sheet' and a URL that appears to be a lure. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the malicious destination. No scripts were extracted from this sample.

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/pify?keyword=red+dye+diesel+safety+data+sheet
    • http://veradaz.restorerevive360.com/uploads/1/3/0/7/130776873/zinemowakofepaf-pefubinibagifa-dujegafagixo-jetumevesi.pdf
    • http://files.jakegeocox.com/uploads/1/3/2/6/132681296/vixeba.pdf
    • https://cdn.shopify.com/s/files/1/0432/3999/7595/files/46903278291.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/wokiboxoro.pdf
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/nogofito.pdf
    • https://cdn.shopify.com/s/files/1/0434/8697/0018/files/56312820304.pdf
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/bakisikizuxaloduweliwod.pdf
    • https://cdn.shopify.com/s/files/1/0439/9444/8030/files/operatoria_dental_barrancos_4ta_edicion_descargar.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/kexapu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/medade.pdf
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/87772288053.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006173.bin
28580ae6dd249f56c50717ec4f227f4baee3f046762ac434260b91148bfdbab0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6173 4580 bytes
font_01_sfnt_off00007116.bin
a7dd2050668e686918c34310ebbf6cb63223b7eb29649cf106d1a851fd6f9dfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7116 10644 bytes
font_02_sfnt_off0000957d.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x957D 4324 bytes

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