Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cf7c799a73b3e5d…

MALICIOUS

PDF

42.9 KB Created: 2020-08-13 23:42:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 630c51a721d3a22a6b72285843e2f82a SHA-1: 2882d601e77c2d15063409372552ae8c666cd454 SHA-256: 1cf7c799a73b3e5d103ffbf6b2c68dabaeec2909acbf607de827e22b8a2acf81
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious link, 'https://ttraff.cc/pify?keyword=cartman+game+platformer', is flagged as a known malicious redirector. This suggests the document's purpose is to lure users through a deceptive link farm to a malicious destination, likely for phishing or malware delivery.

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=cartman+game+platformer
    • http://files.gaitwaychiropractic.com/uploads/1/3/0/7/130776490/253680.pdf
    • http://vekibofon.unad.agency/uploads/1/3/0/7/130775850/sufovebiw.pdf
    • http://posomal.christimres.com/uploads/1/3/1/8/131856772/digupiro.pdf
    • http://files.penangfloorball.com/uploads/1/3/2/7/132712093/rabivitukipe_piwidotovexeno.pdf
    • https://cdn.shopify.com/s/files/1/0440/7682/6789/files/pengertian_belimbing_wuluh.pdf
    • https://cdn.shopify.com/s/files/1/0439/5424/1694/files/xabugaxujupe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7626/3841/files/65046192667.pdf
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/18442629628.pdf
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/2763716381.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/78077003558.pdf
    • https://cdn.shopify.com/s/files/1/0437/1070/9913/files/51557125403.pdf
    • https://cdn.shopify.com/s/files/1/0437/3607/2341/files/90984716130.pdf
    • https://cdn.shopify.com/s/files/1/0431/2258/9853/files/wudufajupiwirux.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/6024782283.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_off00006a7d.bin
2f8a9a933dcaef3f85be7a46e07ac648012157ddcf96ea46913804a49a938e3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7D 4948 bytes
font_01_sfnt_off00007b3d.bin
2f293f5610e966f4795181b6acafc92d3cdee2cfa2287d9fe43b7bb4c4f71ead		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3D 10360 bytes

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