Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd4d3aeb5315885…

MALICIOUS

PDF

53.6 KB Created: 2020-08-03 02:01:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d58a97b797dccd4c4e3443ebf317860 SHA-1: 0a0266bd8bdd00cac63f32701ed3fed9f06a2573 SHA-256: 3cd4d3aeb5315885c15362254abb70b16a5851a4dd4ee9b635c248d8180f17de
150 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, many of which point to a redirector service. The primary heuristic firing indicates that the PDF links to known malicious redirector infrastructure. The document body contains the URL https://ttraff.cc/pify?keyword=captive+minecraft+4, which is likely intended to lead the user to malicious content.

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.cc/pify?keyword=captive+minecraft+4
    • http://nawile.sayyestothecake.ca/uploads/1/3/0/8/130813834/wadipivewiz-magizo.pdf
    • http://files.lovolutionofkindness.com/uploads/1/3/0/7/130775380/9086102.pdf
    • http://nofesuji.amandabechtel.com/uploads/1/3/0/7/130739615/pifuru.pdf
    • http://files.friscotxfencing.com/uploads/1/3/2/7/132741241/cbf41962fe.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/list_of_states_in_alphabetical_order.pdf
    • https://cdn.shopify.com/s/files/1/0435/5063/8241/files/toro_lawnmower_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/5147/5366/files/birixikirij.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/19_rogue_twink.pdf
    • https://cdn.shopify.com/s/files/1/0432/4642/0136/files/rumemojedirebo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4151/2855/files/gizenoxugamebogug.pdf
    • https://cdn.shopify.com/s/files/1/0431/7030/0070/files/46437662960.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/datufezon.pdf
    • https://cdn.shopify.com/s/files/1/0433/4452/7511/files/10133171726.pdf
    • https://cdn.shopify.com/s/files/1/0431/9890/6528/files/wefozomatu.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_off00009493.bin
80303ff5123955ecf00788ca1bf8e7d9366c4a06752c6a8da6a817fe0df0f910		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9493 5004 bytes
font_01_sfnt_off0000a591.bin
f51186d7730949e7c30893f54ad6b4b9b1936c120cf2d606a6b7894419803b8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA591 10668 bytes

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