Malicious PDF — malware analysis report

Static analysis result for SHA-256 564782d31e481279…

MALICIOUS

PDF

38.7 KB Created: 2020-08-03 03:13:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b28ef1d95e568acbff5bee9b8df71fc SHA-1: 617e19011f75dded405c6218590129b5644da34d SHA-256: 564782d31e48127977968454b320a023ad3fb93c244cbdb37dacb29ccadb54e5
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=onan+4000+generator+parts'. This URL is likely part of a phishing or scam campaign, attempting to lure victims with keywords related to generator parts. The document body, though partially corrupted, also contains this URL and numerous other links to PDF files hosted on various domains, suggesting a link farm or redirection strategy. The primary malicious IOC is the redirector URL.

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=onan+4000+generator+parts
    • http://files.sereathahouse.com/uploads/1/3/1/4/131454270/ed4f2099ba.pdf
    • http://files.pugetsoundretrieverclub.com/uploads/1/3/0/9/130969183/ce388f4f11cdfd6.pdf
    • http://files.mikewakephotos.com/uploads/1/3/2/6/132683137/jozobu.pdf
    • http://files.401bridgeimprovements.com/uploads/1/3/0/9/130968935/3532337.pdf
    • https://cdn.shopify.com/s/files/1/0430/7625/5897/files/81913548326.pdf
    • https://cdn.shopify.com/s/files/1/0432/2240/1185/files/66792341172.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/tosegaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/43278524851.pdf
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/kerakesokodutomav.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/7588029867.pdf
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/4208249982.pdf
    • https://cdn.shopify.com/s/files/1/0432/9390/0958/files/mubejelewataw.pdf
    • https://cdn.shopify.com/s/files/1/0440/3894/6981/files/51433298764.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_off000058c0.bin
7679dbbeaba90f15c70eb46606a1afbd35649e0a5a52279f6e13e6fde163f450		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58C0 5212 bytes
font_01_sfnt_off00006a8e.bin
aa8a2b1ea633f18db95949ed899b15b2c0354a08ccd5edb9190b6a68485acb58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A8E 10432 bytes

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