Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf26cc022232e8b0…

MALICIOUS

PDF

43.5 KB Created: 2020-08-21 01:07:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c981d0fe84f028f9761bb9ffed825ff SHA-1: 1d21e003330e4af19bc68d9c6a0526b4626079e5 SHA-256: cf26cc022232e8b0ca746e3f911c281420e1b67d0135bcd2b20ea2425fa1ec48
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as an incident close-out report template. The primary heuristic indicates a PDF malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure. No scripts were extracted from this sample.

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=incident+close+out+report+template
    • http://files.britthipple.com/uploads/1/3/1/8/131871720/pixenenonaxesu.pdf
    • http://jabin.ebast.net/uploads/1/3/0/8/130874330/solinema-generowefi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/76029145068.pdf
    • https://cdn.shopify.com/s/files/1/0429/9728/5027/files/12393878789.pdf
    • https://cdn.shopify.com/s/files/1/0436/9245/8152/files/2014422428.pdf
    • https://cdn.shopify.com/s/files/1/0433/9095/9766/files/nobajunaja.pdf
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/area_of_square_rectangle_and_triangle_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65431134640.pdf
    • https://cdn.shopify.com/s/files/1/0436/6221/3273/files/tipokovenadazof.pdf
    • https://cdn.shopify.com/s/files/1/0431/7108/6485/files/54301612639.pdf
    • https://cdn.shopify.com/s/files/1/0432/1227/5876/files/dovipesidonidezigiwozozu.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_off00006d9a.bin
6efebf8edaed16a8c577709c02b4b493cac870b440cc386ba9833fed9cd092b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9A 5156 bytes
font_01_sfnt_off00007efd.bin
3c1e4df1ac563b7917651aea4862d0c538e2e4793f7ea12721266157e142d406		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFD 10052 bytes

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