Malicious PDF — malware analysis report

Static analysis result for SHA-256 46dcd616f843185f…

MALICIOUS

PDF

44.3 KB Created: 2020-07-31 19:29:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e54a5478d5f9ae48756f0da89ac9ea8 SHA-1: 9ed7b3a6bc98307e643e57dc6e92a1fa283e9fa0 SHA-256: 46dcd616f843185f62c789f63c67278fca3f9a50724a89e6f455110bf688bfe2
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=ffxiv+easiest+dps'. It also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO poisoning attempt. The document body, though heavily obfuscated, contains the same redirector URL and keywords, reinforcing the lure. 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.com/pify?keyword=ffxiv+easiest+dps
    • http://files.gailyountsartwork.com/uploads/1/3/0/9/130969211/0c0439a12a6.pdf
    • http://files.eugenemontgomery.com/uploads/1/3/1/4/131438766/zesolabugilobe.pdf
    • http://files.thespeechspacedc.com/uploads/1/3/2/8/132814791/dupurovo_rasakud.pdf
    • https://cdn.shopify.com/s/files/1/0428/8705/3475/files/59179780659.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/64000573883.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14192803693.pdf
    • https://cdn.shopify.com/s/files/1/0431/1895/2612/files/jibumojatafisibitado.pdf
    • https://cdn.shopify.com/s/files/1/0430/6986/6141/files/94652268690.pdf
    • https://cdn.shopify.com/s/files/1/0436/8809/9993/files/mametozorivetofimegimejo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0120/9251/files/95058298421.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0309/files/92914994061.pdf
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/rukomugipejolufogunutod.pdf
    • https://cdn.shopify.com/s/files/1/0431/2583/3884/files/pofozaza.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75555741983.pdf
    • https://cdn.shopify.com/s/files/1/0434/3532/7653/files/nutigewuzebisotugo.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/
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75555741983.pd

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f8b.bin
62ecea0b6c5e1f340619e56a0be13492a8bd6e9a4848ecee241bb353cb3b563f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8B 4988 bytes
font_01_sfnt_off000080ac.bin
0181144897f9dcae56d48d6368533e317da7be5f5ebf00f69c5a6c03352195d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80AC 10472 bytes

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