Malicious PDF — malware analysis report

Static analysis result for SHA-256 f82972f0a579f504…

MALICIOUS

PDF

65.4 KB Created: 2020-08-08 08:30:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a63f2b3a805cda59f7405e8abe5bb484 SHA-1: 2d891e0cf1739e9cc88d455fe8b6b55146994074 SHA-256: f82972f0a579f5047750f14495b60e5a7d3a2305ab9a944cb37ccbe16c26dff6
150 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', which is also present in the document body. This indicates a phishing or scam attempt, likely to lead the user to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, further supporting a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=anlage+verluste+2020+pdf
    • http://files.wholesalesportsplus.com/uploads/1/3/0/7/130739776/9882f80c4957bcd.pdf
    • http://files.parkhillbowlingclub.com/uploads/1/3/2/8/132815154/4047543.pdf
    • http://files.tombreed.com/uploads/1/3/0/8/130813650/powixulonuvit-lonedovime-tizezopilin-monokadozavegil.pdf
    • http://files.beattieartworks.com/uploads/1/3/0/8/130874253/9901399.pdf
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/dexubukaxatekotupopazenul.pdf
    • https://cdn.shopify.com/s/files/1/0431/8740/4968/files/run_travis_locally.pdf
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/belesoxenakakiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/3425/5266/files/75505459864.pdf
    • https://cdn.shopify.com/s/files/1/0431/6558/1469/files/35725843990.pdf
    • https://cdn.shopify.com/s/files/1/0432/6329/5654/files/zetelew.pdf
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/42924521760.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2836/files/71578712462.pdf
    • https://cdn.shopify.com/s/files/1/0430/7812/3669/files/biwewimediwi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/jesogu.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_off0000b9b9.bin
f0809ff805283d4251236db5207a48db54467f41c8645a0d1d07c4aade2fa5e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB9B9 5532 bytes
font_01_sfnt_off0000cca5.bin
aff7f0aff31b6b8cae5e1e1d485b7d570a8499ecd9dcd5afe79210c5c61f135a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCA5 14264 bytes

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