Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7537a053ebddde…

MALICIOUS

PDF

40.2 KB Created: 2020-08-19 03:09:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4bb69b10e17acd74768ce563877de456 SHA-1: b9069a7668f42ce8d7eecf228288cbbbcb22ca34 SHA-256: eb7537a053ebdddef38dd92ab63e19f0e92b94f1ee486d2c380e61424702ca91
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many of which point to benign content, but one critical link redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=mozilla+firefox+win+10+64+bit', which is identified as a malicious redirector. This suggests the document's primary purpose is to trick users into visiting this malicious URL, likely leading to further malware download or phishing.

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=mozilla+firefox+win+10+64+bit
    • http://files.davidsblakeslee.net/uploads/1/3/2/6/132695574/lexisixisenebemasi.pdf
    • http://xumuxuw.2ndgencamaroparts.com/uploads/1/3/2/7/132740519/befob.pdf
    • http://kipux.pacni.org/uploads/1/3/0/8/130874633/626868.pdf
    • http://files.touchedbynangel.com/uploads/1/3/1/3/131397996/3838847.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/adobe_indesign_cs6_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46150969179.pdf
    • https://cdn.shopify.com/s/files/1/0432/6745/7188/files/spatial_data_analysis_by_example.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0156/files/dodakizatozevi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/16729949817.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/62254317630.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83971047952.pdf
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/1188222374.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/gotunema.pdf
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/56350714949.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_off00005e64.bin
37507d8f87ddca7e817bcb279526ba4f4c22339e48b216b1196dc1b0ed7a981d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E64 5376 bytes
font_01_sfnt_off000070e5.bin
d108e12f11cb2eeebc0c7a80a1a2b456182e3dca247a5f27f9a58f1dbbd0b2a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E5 10288 bytes

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