Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd11acd6140c3745…

MALICIOUS

PDF

33.7 KB Created: 2020-08-24 07:42:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5fa6db5ec9e5edca7c7b073e6dd1e27 SHA-1: 2e86e3272da0d94a401ba18c910825797a7ea694 SHA-256: cd11acd6140c3745db029663d16c7d162d30710441f73b1680afe6e2da79a339
150 Risk Score

Malware Insights

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

The PDF contains a mass link farm, with one prominent link redirecting to malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'environmental policy template ireland' and a URL that appears to be a lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=environmental+policy+template+ireland, which is flagged as a malicious redirector.

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=environmental+policy+template+ireland
    • http://rubilo.agbio-inc.com/uploads/1/3/2/6/132683130/316ed0b4faced.pdf
    • https://cdn.shopify.com/s/files/1/0435/4162/7029/files/flash_update_chrome.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/41315389468.pdf
    • https://cdn.shopify.com/s/files/1/0431/6980/8550/files/26817671391.pdf
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/gta_iv_triner.pdf
    • https://cdn.shopify.com/s/files/1/0432/1217/7572/files/8222245751.pdf
    • https://cdn.shopify.com/s/files/1/0431/1239/9010/files/gatarurirafabenev.pdf
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/90249124563.pdf
    • https://cdn.shopify.com/s/files/1/0435/5430/8257/files/37952729401.pdf
    • https://cdn.shopify.com/s/files/1/0436/4340/4441/files/candy_iggy_pop.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3672/files/diccionario_biblico_catolico_ilustrado.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_off000047e3.bin
a0c770ae03d2bb4e381c20318259db23133f5f655b9e9464d38500d58c03ff1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47E3 5160 bytes
font_01_sfnt_off0000595d.bin
81cb4ac57912b660e6a8095b7dcbddb6521ad0fda2d21f15abee8ced59cf7b77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x595D 9732 bytes

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