Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6fb9e8338dfda05…

MALICIOUS

PDF

44.8 KB Created: 2020-08-07 19:06:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55d3b1cb3581838f8427039ce332fb39 SHA-1: 3a544d9fc3af13eb83b8b6510e42a896ae0ccc19 SHA-256: e6fb9e8338dfda05ea47c661f7325c5cdbcc98abe577d16dc41859617bb9a499
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one also leading to a redirector. The document body, though heavily obfuscated, contains the URL that is also present in the heuristics, suggesting a lure 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/pify?keyword=dictionary+of+political+science+terms+pdf
    • http://files.hpsmusic.com/uploads/1/3/2/8/132814343/wilananulalefunoxuro.pdf
    • http://files.riceracingkra.com/uploads/1/3/0/8/130874015/58a6d8.pdf
    • http://files.ccapsummerinstitute.com/uploads/1/3/0/7/130775645/8a8df2a.pdf
    • http://files.ubwaosu.com/uploads/1/3/1/3/131383651/wasugegemijawof-rifevogali-muronevu.pdf
    • http://files.mitemplosagrado.com/uploads/1/3/1/3/131379815/nipeliridasi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/rizumegutakinanasekuj.pdf
    • https://cdn.shopify.com/s/files/1/0435/4539/5359/files/42976768251.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3980/files/kekasetugudebonebuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/6360/6437/files/40927861106.pdf
    • https://cdn.shopify.com/s/files/1/0437/1028/3931/files/riesgos_psicosociales_en_el_trabajo_peru.pdf
    • https://cdn.shopify.com/s/files/1/0436/3039/5552/files/9985110099.pdf
    • https://cdn.shopify.com/s/files/1/0432/7594/4091/files/ruzixas.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98029452840.pdf
    • https://cdn.shopify.com/s/files/1/0433/8004/8037/files/xelavukizes.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/45627667777.pdf
    • https://cdn.shopify.com/s/files/1/0432/7686/1606/files/6333668478.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/1/0432/7594/4091/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fa0.bin
ade659dcf83cbca6e3a5a6ea9657a4b264478af7305707926e6a94aeefd2f264		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA0 5404 bytes
font_01_sfnt_off000081fd.bin
eab0299e99a59441e289890cc58a6bbf16479429b215ebfdbda9fdd50c962080		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81FD 10456 bytes

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