Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a6ed6ddf7aabf0…

MALICIOUS

PDF

44.8 KB Created: 2020-08-24 03:45:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97e43391375f0802078f78ba1775ae3b SHA-1: 8a1a5f7956bcf1cd74e0fdb0c083b560886746eb SHA-256: e5a6ed6ddf7aabf0a6d6d5e4f2fe68c7dc6c116080512efb9d1b57a56a43214c
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains references to 'Qradar siem datasheet' and the malicious URL, suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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.ru/pify?keyword=qradar+siem+datasheet
    • http://minisandscapes.com/uploads/1/3/1/4/131454549/9702905.pdf
    • https://cdn.shopify.com/s/files/1/0429/1595/4855/files/fofuvemojokivulasave.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/72873826399.pdf
    • https://cdn.shopify.com/s/files/1/0433/8424/2325/files/22752581092.pdf
    • https://cdn.shopify.com/s/files/1/0432/7335/5424/files/jovitowefojox.pdf
    • https://cdn.shopify.com/s/files/1/0437/7850/6904/files/popezemunogatefimenoxopo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/cdf_to_converter_software_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/5791/3749/files/97621329889.pdf
    • https://cdn.shopify.com/s/files/1/0433/6818/6015/files/xiweji.pdf
    • https://cdn.shopify.com/s/files/1/0434/7484/5858/files/bitzer_compressor_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/2829/7381/files/mods_gta_iv_xbox_360.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_off00007244.bin
b845d26b74cd9e940f8255c884357d7086bb3ab570b96d6694480c3bec6e155e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7244 5096 bytes
font_01_sfnt_off0000836f.bin
b1bc17902a56c959264bfaba8d07741725cfe820a1c69c804459080684d964a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x836F 10560 bytes

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