Malicious PDF — malware analysis report

Static analysis result for SHA-256 50e589701278b60f…

MALICIOUS

PDF

43.1 KB Created: 2020-08-25 12:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71c866b61b1fb115e5857b01ae7e969e SHA-1: c99e8dd33fb3327bbeccc51063f9992514bc8f7a SHA-256: 50e589701278b60f5bb14a86a90e2d35b71612a56752a2dc97f40d3b3d89c718
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of embedded links, likely to obscure the malicious redirector. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or malware distribution 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.com/pify?keyword=lucid+dreaming+spirit+guide
    • http://files.simplicabinet.com/uploads/1/3/0/7/130739835/pigemilowenijezifup.pdf
    • http://files.davidmichaeldesign.com/uploads/1/3/1/6/131636766/3ab714.pdf
    • https://cdn.shopify.com/s/files/1/0434/0364/0993/files/gujarati_bhajan_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/6821/9799/files/xujukixasajinebi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3250/1656/files/28811722637.pdf
    • https://cdn.shopify.com/s/files/1/0433/0858/1019/files/76413310511.pdf
    • https://cdn.shopify.com/s/files/1/0439/4749/1486/files/90601932037.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/2000_jeep_grand_cherokee_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/1567/3752/files/vutevajadiresujakugedu.pdf
    • https://cdn.shopify.com/s/files/1/0436/5916/5849/files/snapper_riding_mower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/6339/2921/files/34207748864.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dba.bin
fef079dbff8470024e31c4700420e3100e5fe35c0bc1f06f23083994cbe099f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBA 5076 bytes
font_01_sfnt_off00006ed3.bin
ac1c3d280c96c19e580e8eda7d9507bed09a72f34a4e0c8bdc87dc4153d37df5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED3 10408 bytes
font_02_sfnt_off000091ea.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91EA 4324 bytes

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