Malicious PDF — malware analysis report

Static analysis result for SHA-256 380eb51c13e6edb5…

MALICIOUS

PDF

47.9 KB Created: 2020-08-17 03:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d719cb891687e03d7805c86c0cee894 SHA-1: df5d101f6839268af8104981465ed755c7a47894 SHA-256: 380eb51c13e6edb5bca610d084b942e5af4a4193a50bfdc2bb89412c4b6d89ab
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The primary malicious URL is 'https://ttraff.ru/pify?keyword=the+practical+kabbalah+pdf', which is likely used to redirect users to a malicious site.

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=the+practical+kabbalah+pdf
    • http://files.sorrowfulmother.net/uploads/1/3/2/6/132680822/ab2206.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/51223452111.pdf
    • https://cdn.shopify.com/s/files/1/0438/3503/1712/files/43910618129.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/bafujotirapizemuwexajus.pdf
    • https://cdn.shopify.com/s/files/1/0431/2583/3882/files/bando_automotive_belt_catalog.pdf
    • https://cdn.shopify.com/s/files/1/0431/8717/5588/files/nuwifekazeze.pdf
    • https://cdn.shopify.com/s/files/1/0428/8466/1407/files/ludode.pdf
    • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/zepowewudunefig.pdf
    • https://cdn.shopify.com/s/files/1/0434/8785/4749/files/89328230032.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4677/files/heart_of_worship_chords_g.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_off00007f34.bin
827d5ca1d061640ecddd6a924c74376b6021ab89ff01de6be377cd6ba03f7d1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F34 5220 bytes
font_01_sfnt_off000090e3.bin
178b0bb12893abf039ace51b79437dfc12fc509e32f6f03c1e3afcdcdbeec1c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90E3 10084 bytes

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