Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde1caff1545cfe8…

MALICIOUS

PDF

39.8 KB Created: 2020-08-29 09:19:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 695bf429df3775a684f6c067ccb1703a SHA-1: 22c9832130fee644963621fdc915d612dac39318 SHA-256: bde1caff1545cfe846f46cda77661ade775541e8034824badc5c7665393165c1
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=slither+io+unblocked+games+66'. This URL is embedded within the document body, suggesting an attempt to trick users into clicking it, likely for phishing or malware distribution. The presence of numerous other links to Shopify-hosted PDFs, while individually benign, contributes to a link farm pattern, potentially for SEO manipulation or to obscure the malicious destination. 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.cc/wix?keyword=slither+io+unblocked+games+66
    • https://cdn.shopify.com/s/files/1/0439/0472/9243/files/88694261005.pdf
    • https://cdn.shopify.com/s/files/1/0430/2592/4249/files/time_distance_formula.pdf
    • https://cdn.shopify.com/s/files/1/0432/4071/8496/files/dalenikakez.pdf
    • https://cdn.shopify.com/s/files/1/0437/2286/6842/files/adjectives_ed_ing_grammar.pdf
    • https://cdn.shopify.com/s/files/1/0431/1125/2132/files/janafude.pdf
    • https://static.usrfiles.com/ugd/b8c837_c0adad6502bf40ae8d924276af56824c.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e244c619ba3435db45c11b591767a90.pdf
    • https://cdn.shopify.com/s/files/1/0463/2379/4077/files/rekaxinorenusebore.pdf
    • https://cdn.shopify.com/s/files/1/0437/3345/0903/files/toronto_driving_test_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/kapafumopexetibe.pdf
    • https://cdn.shopify.com/s/files/1/0438/2425/1042/files/faxamapetoxebilugovi.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_off00005c73.bin
a02e6786e1ccc7705b7316a931301f4c298a777c453679bd077a18059121a637		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C73 5816 bytes
font_01_sfnt_off00007005.bin
a7b9f26966116c766e93aecac8a7368069c0d528d72956416a36a55fbe031796		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7005 10184 bytes

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