Malicious PDF — malware analysis report

Static analysis result for SHA-256 b59b1f6a779160f0…

MALICIOUS

PDF

43.4 KB Created: 2020-08-31 08:27:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67fe46f1dfba1eb3109b6a54701bea9a SHA-1: 25a2b39db687dd742428449e0af14ac0fdd8dda8 SHA-256: b59b1f6a779160f007f46f2615bacd3fede1d99980f1505cb960f46a6778e9b6
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm pattern, with numerous links to Shopify-hosted PDFs, suggesting an attempt to obscure the final destination or distribute content. The document body, though heavily obfuscated, contains the same URL found in the redirector heuristic, reinforcing the malicious intent. The presence of a callback lure heuristic further suggests a phishing or scam pretext.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=financial+and+managerial+accounting
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/58839972049.pdf
    • https://cdn.shopify.com/s/files/1/0432/9593/2584/files/monochrome_laser_printer_test_page.pdf
    • https://cdn.shopify.com/s/files/1/0463/3287/0817/files/lavatafinavedeki.pdf
    • https://cdn.shopify.com/s/files/1/0428/9432/7961/files/gowizuxer.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf551a7e46aa44c3a958e961fa977820.pdf
    • https://static.usrfiles.com/ugd/19103d_7ed8e5a3ec2f488282188c5ad69212ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa8fbb4b95394160820bdbedba2ec3fe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4831/2730/files/39441455145.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/46334005380.pdf
    • https://static.usrfiles.com/ugd/19ce5d_7d52cf55be014c8bbade4084279a1661.pdf
    • https://static.usrfiles.com/ugd/b8c837_5fa9c1a4e4ed477e8e2696d310c152c5.pdf
    • https://static.usrfiles.com/ugd/04e6f9_032ba58cbc124dcc927484a79c7bfc52.pdf
    • https://static.usrfiles.com/ugd/4d6844_c36b4860f58e49b28ff0672664806178.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_off00006b86.bin
be0b977b211df49113a3e9ecdf5a88e2e376d8dace09887e7dabfb52ba93f4af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B86 5036 bytes
font_01_sfnt_off00007c81.bin
0499f31f96004073422d695596b04ee5675a4d8b7a6b7cc1ac03b3fc91ce71cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C81 10680 bytes

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