Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cf3394bfbdabccb…

MALICIOUS

PDF

52.5 KB Created: 2020-08-21 12:00:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75243953b63b53949997392667c05b0c SHA-1: 7dc978c90b3b25ab3ebfaabf340dd0baf0562fe4 SHA-256: 1cf3394bfbdabccbbd25a42d04e750d23de7eebfaabb1d205a5d2913593df1a2
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=eso+lycanthropy+guide. The document body, though heavily obfuscated, contains this URL and other embedded links, suggesting a social engineering attempt to direct users to potentially harmful content.

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=eso+lycanthropy+guide
    • http://doxokodif.infantmassagenewzealand.org/uploads/1/3/0/8/130814328/75dce4e620fd2.pdf
    • http://files.destinationsbydes.com/uploads/1/3/1/3/131384635/2e731.pdf
    • http://files.whatnowlifecoaching.com/uploads/1/3/2/7/132740905/eed1bde9691c.pdf
    • https://cdn.shopify.com/s/files/1/0461/4966/4931/files/fidelity_investments_401k_terms_of_withdrawal.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/90602389268.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46391305542.pdf
    • https://cdn.shopify.com/s/files/1/0440/6912/6309/files/smart_irrigation_system_project.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/xenoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3159/files/mebifer.pdf
    • https://cdn.shopify.com/s/files/1/0435/1682/1672/files/zilabonodofutaluv.pdf
    • https://cdn.shopify.com/s/files/1/0432/8338/2427/files/83114447275.pdf
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/clubbers_guide_ibiza_2002.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_off00009086.bin
4c04cacd02f884980f7ae35649e3bddee0a27ee255f5bef21796b310a86d71ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9086 5396 bytes
font_01_sfnt_off0000a2dd.bin
a284566825cbe7906226b31ee747e0efa36e27195622fb131810535f730c9892		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2DD 10212 bytes

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