Malicious PDF — malware analysis report

Static analysis result for SHA-256 e21083384415a035…

MALICIOUS

PDF

52.3 KB Created: 2020-08-27 21:29:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77bd4a916efef3300f528445a603e0a0 SHA-1: 724ec4815c9d58bff60764ba7a9c0a96c24c5db2 SHA-256: e21083384415a03514fd5c2db72dfc970a929e09f890b32367da017df64f1a34
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a 'link farm' heuristic. One of these links, 'https://ttraff.cc/pify?keyword=new+england+alliance+for+health', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous Shopify-hosted PDF links indicates an attempt to disguise the malicious intent within a seemingly legitimate context.

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=new+england+alliance+for+health
    • http://files.edwinowre.com/uploads/1/3/2/7/132710603/lulebepukolar_zoxiraj_batanive.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/70449012634.pdf
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/fulivizovo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/disputationes_camaldulenses.pdf
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/soxatedotexasepepuxutidum.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bivunamu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8053/files/66648489784.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4712/files/46901479411.pdf
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/netalutarusawaken.pdf
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/framingham_risk_assessment_tool.pdf
    • https://cdn.shopify.com/s/files/1/0428/7198/0198/files/41573281063.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kevimofurerofujasopam.pdf
    • https://cdn.shopify.com/s/files/1/0437/2735/6056/files/weguxig.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_off00008039.bin
75cea4e20778c2e6ff77a7039d281b8d3538641cd9f3e8dda6bbcaa383663c0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8039 4952 bytes
font_01_sfnt_off00009119.bin
0d95b69f9f31b73400a9246568a57fa1fb490278e63b9590a8cb68c923e01a93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9119 10872 bytes
font_02_sfnt_off0000b60b.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB60B 4324 bytes

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