Malicious PDF — malware analysis report

Static analysis result for SHA-256 34aea99ae9f20669…

MALICIOUS

PDF

40.8 KB Created: 2020-08-30 18:15:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf0d596bfc623f8002db0560908777c3 SHA-1: 30c2bb789cce21c41c0d462ccc4f5ad7af537192 SHA-256: 34aea99ae9f206694191337f2ef070ded27341df1ae7c55b95bab6f80a8139a9
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 'https://ttraff.cc/wix?keyword=dark+pyromancy+flame+dark+souls+2'. Additionally, the PDF is flagged as a malicious redirector and a link farm, indicating a high likelihood of malicious intent. The embedded document body text also contains the malicious URL, reinforcing its role in the attack.

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/wix?keyword=dark+pyromancy+flame+dark+souls+2
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/79613642728.pdf
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/93864470921.pdf
    • https://cdn.shopify.com/s/files/1/0432/8652/8155/files/ciencias_formales_y_fcticas_definicin_clasificacin_diferencias.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/lil_wayne_carter_4_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/16800488018.pdf
    • https://static.usrfiles.com/ugd/b8c837_9ee1c28aca8949a5a4f2c35802287cec.pdf
    • https://static.usrfiles.com/ugd/912de2_53e430bcb4a24e3cb484c6f5eef716c4.pdf
    • https://static.usrfiles.com/ugd/9b5f63_22e99c447706460ab50b38093426b051.pdf
    • https://static.usrfiles.com/ugd/01e791_0a0744217a8c4b0b80d09975cacccab6.pdf
    • https://static.usrfiles.com/ugd/b8c837_c3eb8f7263154a14a9f727e1936c92c3.pdf
    • https://static.usrfiles.com/ugd/b6edda_c5a8455e7c6d4e0892aaf91ca434f215.pdf
    • https://static.usrfiles.com/ugd/a2ebd8_4a8b9f1f9d024e6f996c8ccc6c9f104e.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/
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/1680

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060ff.bin
db6f838fbd41eec5225231d740943c1289e0dcef5458c74b8f952ab6714b6a1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60FF 5600 bytes
font_01_sfnt_off00007405.bin
ccfc295b1e0e20280becc8a677f8ed6791b721b1233d1166ca9c21dc31604909		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7405 10056 bytes

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