Malicious PDF — malware analysis report

Static analysis result for SHA-256 56110e6d660e49e1…

MALICIOUS

PDF

38.7 KB Created: 2020-07-31 17:37:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad6659e7407d2be1d0405d42e373f58b SHA-1: c3dc592fe32b7fada8016c654fd00700a9f04f3e SHA-256: 56110e6d660e49e1aec7b30b7e8ccdcc54e07cc27ca91c1ceec47d012acc4937
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged as malicious due to a high number of embedded external links, many pointing to a redirector service. The document body contains obfuscated text and the URL 'https://ttraff.ru/pify?keyword=genie+pro+88' is identified as a malicious redirector. The presence of numerous links suggests an attempt to either distribute malware or engage in SEO manipulation for malicious purposes.

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=genie+pro+88
    • http://files.msudestinationauction.com/uploads/1/3/1/3/131384400/57d7fb6a064cf3d.pdf
    • http://files.rmflmedan.com/uploads/1/3/2/7/132741110/nagalago.pdf
    • http://files.janetlees.com/uploads/1/3/2/7/132740488/rimagonojoro_benelu.pdf
    • http://files.bearcatmusic.org/uploads/1/3/0/7/130739510/zosagulukemibi-zawezamegararav-paxazafa.pdf
    • https://cdn.shopify.com/s/files/1/0432/6948/8798/files/sajemijezib.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6161/files/nj_homestead_rebate_2014.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zemivok.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/78438204999.pdf
    • https://cdn.shopify.com/s/files/1/0433/2909/3784/files/wazexirowi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/wojum.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1460/files/tupawuregizaralipipofikaf.pdf
    • https://cdn.shopify.com/s/files/1/0427/9471/3244/files/55776858199.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54171278856.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6257/files/4682170097.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_off0000516c.bin
e60742a682bbcbcf0a55c53caf5f15cb936262c87010d9945b9de4c39d422f9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x516C 4616 bytes
font_01_sfnt_off00006138.bin
d2de6138f31d45418a9db01ab69b21d12fec24247cc1adf8ac95c6a14c139fb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6138 14296 bytes

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