Malicious PDF — malware analysis report

Static analysis result for SHA-256 d975b66214ba873f…

MALICIOUS

PDF

111.3 KB Created: 2020-08-08 01:29:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e529b065cd2370a400dcbd3dd91b52c SHA-1: 75eb4b49fe0a6d4128355e4653c1c7156c051269 SHA-256: d975b66214ba873fff98774555477b5a764032cc4ae187efabbb9d51cc9c5063
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 pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to a free PDF download, reinforcing the lure. The embedded URL is part of a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=livro+after+1+pdf+gratis+completo
    • http://files.lebaneseamericanfestival.com/uploads/1/3/0/8/130814900/2033953.pdf
    • http://files.cornerstonestrategies.net/uploads/1/3/1/6/131606465/telogewubogug.pdf
    • http://files.okotokshcpharmacy.ca/uploads/1/3/0/7/130775728/6850934.pdf
    • https://cdn.shopify.com/s/files/1/0430/3778/6266/files/95216025294.pdf
    • https://cdn.shopify.com/s/files/1/0431/1823/1709/files/68154664024.pdf
    • https://cdn.shopify.com/s/files/1/0430/6593/3973/files/31669577477.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xefafozerokadugatevaru.pdf
    • https://cdn.shopify.com/s/files/1/0434/9168/8610/files/57517020068.pdf
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/lotemupolo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9649/0663/files/64523242951.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0138/files/likupeziwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/6668/6629/files/tasaweragibukagudalu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/tajilutojafizulovafowus.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/40602614013.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_off00017aa1.bin
42fa5527b5a4ae5dc449dcef2b50f36f9f491218c7cf01eab3f4f858259dd54d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17AA1 5528 bytes
font_01_sfnt_off00018d73.bin
8426462285cbb53dda646d15733c23ac27a5281636289df5199fe4b0800f65db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18D73 10108 bytes

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