Malicious PDF — malware analysis report

Static analysis result for SHA-256 38eb87883378ab85…

MALICIOUS

PDF

41.7 KB Created: 2020-08-30 02:08:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d62a0ac61c21101e826f807a1be50c7 SHA-1: 060bfb0d037d54dca886d4851478883947009e38 SHA-256: 38eb87883378ab85ab2bb102b1cf868aa7f5f733ca0552b448f5cc42995b3c77
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, including a primary link to `https://ttraff.com/wix?keyword=dvd+ra%25C3%25A7a+negra+e+amigos+2+download+gratis`. This URL is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the document's purpose is to trick users into clicking it for a fake download. No scripts were extracted, limiting further analysis of its behavior.

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=dvd+ra%25C3%25A7a+negra+e+amigos+2+download+gratis
    • https://static.usrfiles.com/ugd/b8c837_928557fc88504efd843ea792ab26c7a0.pdf
    • https://static.usrfiles.com/ugd/b8c837_322e4f4a2bfd41cbb1aa844cf6c76590.pdf
    • https://static.usrfiles.com/ugd/0047a4_63593c732df041e886fe2cec4e8122de.pdf
    • https://static.usrfiles.com/ugd/c4ccc4_4f465523aaf84edbbfe9e3b8debc4ab1.pdf
    • https://static.usrfiles.com/ugd/5899d5_56d3037f0b2041dd9c50ff5eec182197.pdf
    • https://cdn.shopify.com/s/files/1/0458/2421/3155/files/44596665640.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/rakebilibufolagisododi.pdf
    • https://cdn.shopify.com/s/files/1/0436/9652/1369/files/php_convert_timezone.pdf
    • https://cdn.shopify.com/s/files/1/0434/6124/7138/files/cursive_writing_letters_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/how_to_call_a_function_in_python.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/vosurafirafitumusapufop.pdf
    • https://cdn.shopify.com/s/files/1/0465/0221/5838/files/free_math_sheets_for_fourth_graders.pdf
    • https://cdn.shopify.com/s/files/1/0464/6597/4440/files/questes_sobre_independencia_dos_estados_unidos_8_ano.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000546c.bin
fd16f1d9caabc3498c653d8204528caf669f49a7bb20f3aa0d74e97216715c33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x546C 5396 bytes
font_01_sfnt_off000066ca.bin
e10cdcfa230897c4398cf2499bae633def150105d2c5a2f640cd8223dbac698e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66CA 10216 bytes
font_02_sfnt_off00008993.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8993 4324 bytes

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