Malicious PDF — malware analysis report

Static analysis result for SHA-256 96275dc3902225dc…

MALICIOUS

PDF

45.0 KB Created: 2020-08-21 05:32:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 911738f78079687fa95d975e6e0376e4 SHA-1: 9a4935f45143331913bfefd47ef1dfda5e72ccf5 SHA-256: 96275dc3902225dcc023f7098cd3068904d1cad63140fc79e47fd349632b4d07
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is the primary attack vector. The document body, though heavily obfuscated, contains text suggesting a lure related to email templates. The embedded URL `https://ttraff.cc/pify?keyword=follow+up+boss+email+templates` is a critical IOC, as it points to known malicious infrastructure. The file also contains a large number of embedded links, many pointing to Shopify, which is indicative of a link farm used for SEO poisoning or to host malicious content.

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=follow+up+boss+email+templates
    • http://zajim.myultimatecuts.com/uploads/1/3/0/9/130969754/modojebexolorujewuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6374/6465/files/66622406360.pdf
    • https://cdn.shopify.com/s/files/1/0436/5336/5910/files/83875305094.pdf
    • https://cdn.shopify.com/s/files/1/0439/2845/3288/files/38000364036.pdf
    • https://cdn.shopify.com/s/files/1/0435/5470/1463/files/revejalogijuwa.pdf
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/77799524167.pdf
    • https://cdn.shopify.com/s/files/1/0435/7757/3539/files/indirect_cash_flow_statement_excel_template.pdf
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/l_avantage_concurrentiel_des_nations_michael_porter.pdf
    • https://cdn.shopify.com/s/files/1/0440/0755/5222/files/tiforevin.pdf
    • https://cdn.shopify.com/s/files/1/0435/3818/6394/files/dawiwevixedulajawafodov.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/94237443614.pdf
    • https://cdn.shopify.com/s/files/1/0437/1238/1079/files/bebapaxamutitowupep.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_off00005ea8.bin
37aaa2be5c1822be7c474ae9e819ba39c7f007dc47f329c61beb54b7e756070d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA8 5056 bytes
font_01_sfnt_off00006fd5.bin
0bb928ac2670189cf952640ab15c9ec1617b0127f62a1641e866c5e553be17f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD5 10044 bytes
font_02_sfnt_off00009230.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9230 16164 bytes

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