Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f1014ba0419b8d…

MALICIOUS

PDF

52.3 KB Created: 2020-08-30 17:40:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: febffd0ec3cd780a6b7ff746016f45dd SHA-1: a02952c5924e8a6704a3e43a76d6938e269abd45 SHA-256: 89f1014ba0419b8daece0c47b67898868eccf747f46aef51db19a67aff1ba1bf
120 Risk Score

Malware Insights

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

The PDF contains a link to `ttraff.cc`, which is flagged as a malicious redirector. The document body, though partially garbled, contains text related to 'hair cloning surgery' and the authoring application 'wkhtmltopdf', suggesting a lure to a malicious site. The presence of numerous external PDF links, many pointing to `static.usrfiles.com`, indicates a link farm designed to attract traffic, likely to the malicious redirector.

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/wix?keyword=hair+cloning+surgery
    • https://static.usrfiles.com/ugd/ceb2e8_68140ca587f6471cb66eb39f621322fe.pdf
    • https://static.usrfiles.com/ugd/d5d855_6be7f9778c914a479eb9fdda79cccb72.pdf
    • https://static.usrfiles.com/ugd/b8c837_9109b88c05074a64ba9531a98d372619.pdf
    • https://static.usrfiles.com/ugd/599f1c_0b260d5fc4d946bfa4a06661aadd5a30.pdf
    • https://static.usrfiles.com/ugd/824332_6f0fc68901934cdba7356299541249dc.pdf
    • https://static.usrfiles.com/ugd/4d400c_e3f1c5c2bfe344bcadeffae900a30e0d.pdf
    • https://static.usrfiles.com/ugd/538d67_06e44c667f67406f9d7d85fe8ac00b14.pdf
    • https://static.usrfiles.com/ugd/f96b02_6f725ea61c8d4cc58b22909b6e0f07cd.pdf
    • https://cdn.shopify.com/s/files/1/0462/5901/1735/files/botanataxopodudid.pdf
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/emily_s_hopes_and_fears.pdf
    • https://cdn.shopify.com/s/files/1/0439/3644/8667/files/mepesixivuralubix.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_off00008f3f.bin
3cab63d512b332d97ced67807fc5354e76df49ce2cd781368f35c5e1dc83c57e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3F 5028 bytes
font_01_sfnt_off0000a068.bin
6a6a5ef77119fab01bc436c08395905cfb1394437e26ff34c54e7a8cb1eebe48		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA068 10308 bytes

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