Malicious PDF — malware analysis report

Static analysis result for SHA-256 fafa78756403dd85…

MALICIOUS

PDF

38.8 KB Created: 2020-08-21 11:17:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61f263d9cbd3d5664d79e5de855ebc7b SHA-1: 14cc8e1da34fb353fda80717a2dfa8da18011c9c SHA-256: fafa78756403dd85ea0bcdbd2b76a63b79b8c1491ab2f7cee50b23af32d4def5
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.com/pify?keyword=socks+coloring+template', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. 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=socks+coloring+template
    • http://files.artsourceco.org/uploads/1/3/1/6/131636954/jibol.pdf
    • http://kivat.tianashores.com/uploads/1/3/2/8/132814930/mowos-dekixuru.pdf
    • http://files.votejeffreycoakley.com/uploads/1/3/0/7/130739470/pufosizogew.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/cu_inferno_alfredo_bosi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8402/1921/files/jorijagoz.pdf
    • https://cdn.shopify.com/s/files/1/0437/8784/5790/files/104_pf_capacitor_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
    • https://cdn.shopify.com/s/files/1/0430/6331/2535/files/mental_health_among_adolescent.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/ielts_listening_recent_actual_tests_volume_3_audio.pdf
    • https://cdn.shopify.com/s/files/1/0437/6385/9610/files/night_calls_nude.pdf
    • https://cdn.shopify.com/s/files/1/0450/2516/5476/files/biological_perspective_psychology.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_off00004cc9.bin
6a6e62c9ffa7e360f52d5371d850cb671da38475631202715332ed369ebf9214		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC9 5208 bytes
font_01_sfnt_off00005e4d.bin
67e102323b8d64b93015605f80702fa3855ad1882704afbd2fecd9d75a8fd4ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4D 10036 bytes
font_02_sfnt_off000080c0.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80C0 4324 bytes

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