Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7846e6b0d1b96d4…

MALICIOUS

PDF

32.7 KB Created: 2020-08-17 07:41:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51126ae16231e153a8570a3eda56eb6f SHA-1: 005868b432e4c31c153cd6c59985954605bb3de5 SHA-256: b7846e6b0d1b96d414d6a76d3b1d5038a0bc0ac6c7a65f8005db9cff46112f79
120 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 external resources. One critical heuristic firing indicates a malicious redirector link to 'https://ttraff.ru/pify?keyword=mapleroyals+training+guide+cleric', suggesting an attempt to lead users to malicious content. The document body also contains this URL and numerous other Shopify-hosted PDF links, indicating a link farm strategy. The primary goal appears to be directing users to potentially harmful websites through a deceptive link-based lure.

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=mapleroyals+training+guide+cleric
    • http://files.martapequeno.com/uploads/1/3/2/7/132740260/7821e262b.pdf
    • http://nuvuv.donleespizza.com/uploads/1/3/0/7/130739625/5643199.pdf
    • http://files.weddingproct.com/uploads/1/3/2/6/132683088/6882092.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/8175636507.pdf
    • https://cdn.shopify.com/s/files/1/0433/4583/8248/files/business_letter_format_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/46324180498.pdf
    • https://cdn.shopify.com/s/files/1/0432/0870/4164/files/vce_exam_simulator_2._4._1.pdf
    • https://cdn.shopify.com/s/files/1/0433/0278/1083/files/19203237038.pdf
    • https://cdn.shopify.com/s/files/1/0431/9304/1059/files/fuparaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/norexejixogenakunimaxuta.pdf
    • https://cdn.shopify.com/s/files/1/0435/7606/6207/files/wibewewezijutelewokabob.pdf
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/livim.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/juzitofefelurovelasefo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/vigadinenedasabiboxuguf.pdf
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/mitojutifodebesava.pdf
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/jalozojubedanemaka.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_off00004383.bin
2923e2065bfff0ee6e36e27174efbf7309b0198f0e94732603cda19537e46c20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4383 5348 bytes
font_01_sfnt_off000055c8.bin
f6149f72314b4a05da6944ac4da7f2f55e35182f1ec1ae567855bc4f4985f9f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C8 9288 bytes

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