Malicious PDF — malware analysis report

Static analysis result for SHA-256 86d299c0759129b0…

MALICIOUS

PDF

47.4 KB Created: 2020-09-16 20:12:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ba35b03d0494d20fcc7116a419f67fa SHA-1: 64ae72c7fb0917b83168950f35ef0c90e92710d7 SHA-256: 86d299c0759129b0d6df610f56c8eea2a6e73a76f14d5c9060abbacc8a2ea802
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to `https://ttraff.link/wix?keyword=ultimate+equipment+pdf`. Another critical heuristic, PDF_SEO_LINK_FARM, indicates a mass of external PDF links, with `https://cdn.shopify.com/s/files/1/0439/0515/5224/files/18486477063.pdf` being the first listed. The document body, though heavily obfuscated, contains these URLs, suggesting a social engineering attempt to direct users to potentially 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.link/wix?keyword=ultimate+equipment+pdf
    • http://files.aspartika.com/uploads/1/3/1/6/131606289/papakegimax-sivob-vamutibema-zuwila.pdf
    • http://gutiwagi.newrumleyumc.com/uploads/1/3/1/4/131438379/7767017.pdf
    • http://vodika.bluegrassstream.com/uploads/1/3/1/8/131856543/foboka.pdf
    • http://puvuxuma.dedhamcampfair.org/uploads/1/3/2/6/132681556/fetamutefituvapepub.pdf
    • http://files.theabcofchrist.com/uploads/1/3/0/7/130775154/kerojuzavapogoxadip.pdf
    • https://cdn.shopify.com/s/files/1/0439/0515/5224/files/18486477063.pdf
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/empire_warriors_td_lvl_20_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/7909/6728/files/79743078945.pdf
    • https://9b7a4701-5c4d-4e31-9343-b529c15d3c0d.filesusr.com/ugd/1e557c_bd6315a87fe949d1b8bf5da9416ee800.pdf?index=true
    • https://cb35c8e9-be74-4194-934c-ea9d001dab08.filesusr.com/ugd/429b25_58363d4433d546e0a17c7021c6caa9fe.pdf?index=true
    • https://51a5776c-62e9-4a22-929d-95d888c29998.filesusr.com/ugd/1b7c00_9879e16024c14d01a4a8570ed24723bc.pdf?index=true
    • https://1c11201a-aef2-4ddc-968c-9ab8c1ee12d1.filesusr.com/ugd/0c8cc8_9bbe7dea55274c6f9e2544c8a8f9c494.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0434/3614/6855/files/59977588481.pdf
    • https://cdn.shopify.com/s/files/1/0431/1583/9645/files/prior_authorization_form_for_preferred_care_partners.pdf
    • https://cdn.shopify.com/s/files/1/0463/4414/3005/files/65170859840.pdf
    • https://cdn.shopify.com/s/files/1/0430/6858/8185/files/operation_christmas_child_printable_information_sheets.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_off00006f10.bin
21c84431edcf2f8453e5ed55fac29bf1290ff19c0f6a8bd807b5901c24398991
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F10 4800 bytes
font_01_sfnt_off00007f3f.bin
fd10650a315baadf192281864f69b16f9538b10e35fa3698b8512964fe6570e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3F 10592 bytes
font_02_sfnt_off0000a2a3.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA2A3 4324 bytes