Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd9e73fbb77a5925…

MALICIOUS

PDF

35.9 KB Created: 2020-08-31 01:32:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50a96718cfc0b1c89b1d2f75152f4baf SHA-1: f8775347a23f40782a00b019157754b5c5257bd3 SHA-256: fd9e73fbb77a59255924257ef688a66640c81eba955af3ad0eeb418d3dfcc5ad
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wix?keyword=technical+physics+bueche', which is flagged as malicious. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, likely for SEO poisoning or to obscure 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.com/wix?keyword=technical+physics+bueche
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/70296084966.pdf
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/3021374417.pdf
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/jekerarax.pdf
    • https://cdn.shopify.com/s/files/1/0439/3343/4011/files/branding_in_marketing.pdf
    • https://static.usrfiles.com/ugd/c0b427_c63a57104119482c92db3f77b677bc8e.pdf
    • https://static.usrfiles.com/ugd/79e0dc_f95668d84fe14a3a9990bdf9882f0913.pdf
    • https://static.usrfiles.com/ugd/a01749_8a2b33f4f90c46b483eea8eb871d1fb0.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_7441f311c50947d3abe8a19a9cf4f9bc.pdf
    • https://static.usrfiles.com/ugd/b8bbd7_134cabd9d7f249ca8cf0fda0e0e4cd78.pdf
    • https://static.usrfiles.com/ugd/3b7182_942d031489d147b5a79dc9a19179c5a0.pdf
    • https://static.usrfiles.com/ugd/b8c837_3382137978224093a2596f2a0e44a9c1.pdf
    • https://static.usrfiles.com/ugd/0c41e7_a8aa724b263f4f34b6e640e58e760e19.pdf
    • https://static.usrfiles.com/ugd/0dcf4b_a363445fdd924b51b309222b65c892aa.pdf
    • https://cdn.shopify.com/s/files/1/0430/4178/3959/files/23657986128.pdf
    • https://cdn.shopify.com/s/files/1/0439/3651/4216/files/33392759013.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_off00004e6d.bin
d7055414eb5cc8f4a69f931887a1dd0a3b4866cb526ee963888048463b585cd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6D 5116 bytes
font_01_sfnt_off00005fcb.bin
cb4258072dbab80c715c35e541f302a545b77c8f82dd98ddf39d783fa6d3329d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCB 10340 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.