Malicious PDF — malware analysis report

Static analysis result for SHA-256 c068f0e358b6c1a8…

MALICIOUS

PDF

52.3 KB Created: 2020-08-19 00:00:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47f614c97828355ef23c16410cfa533f SHA-1: eddf8570968536c85eba7825a6889d5eae7d55c0 SHA-256: c068f0e358b6c1a8128f04979a2f77d11d22defd25a48552641ba42c5d9092be
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including one pointing to a known malicious redirector at `https://ttraff.ru/pify?keyword=canada+federal+elections+platforms`. The document body, though heavily obfuscated, contains text related to Canadian federal elections, suggesting a lure to encourage users to click the malicious link. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm strategy to distribute 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.ru/pify?keyword=canada+federal+elections+platforms
    • http://files.doverchoirs.com/uploads/1/3/1/1/131163712/2728441.pdf
    • http://gepizawur.pslhsband.com/uploads/1/3/2/6/132682787/5867488.pdf
    • https://cdn.shopify.com/s/files/1/0438/4718/8640/files/nuwavisevaxopodexuniwi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/partitura_para_piano_de_alfonsina_y_el_mar.pdf
    • https://cdn.shopify.com/s/files/1/0457/0428/2268/files/flocabulary_equations_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/6320/6307/files/mofigiwekavinevabipejite.pdf
    • https://cdn.shopify.com/s/files/1/0440/4133/9045/files/winrar_64_free_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0431/2711/1841/files/bosegegadarewejefuf.pdf
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/jasepotaraxol.pdf
    • https://cdn.shopify.com/s/files/1/0432/2040/2343/files/dotokusa.pdf
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/15397414878.pdf
    • https://cdn.shopify.com/s/files/1/0436/9616/0921/files/bugofixasafomezepob.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/rarorexikopurowa.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_off00008ed4.bin
e889d45c9999912483c4db2c03bbac141938c36b18aceca409c4a84b3191584b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED4 5208 bytes
font_01_sfnt_off0000a070.bin
a847eceae67619b2af4a97a4b5bbe6fec95b1e8e9a584eb3c32615aaf57c0ae6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA070 10560 bytes

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