Malicious PDF — malware analysis report

Static analysis result for SHA-256 3694045dab8db6a6…

MALICIOUS

PDF

42.5 KB Created: 2020-08-19 04:56:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e040ead02f25766a7970edf2bfa1705 SHA-1: e8134aba4c141c6657b54dbd12b8080f5b7fc536 SHA-256: 3694045dab8db6a60e50683b66cbf1b5bd6bee4b524652eb6d6f6d670971ec8a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=blackbeard%2527+s+ghost+movie'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including 'https://cdn.shopify.com/s/files/1/0431/7049/6672/files/tiked.pdf'. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to a movie title.

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.ru/pify?keyword=blackbeard%2527+s+ghost+movie
    • http://files.ladybugliteracy.com/uploads/1/3/1/0/131070688/a86706.pdf
    • http://files.toronto-dialabottle.com/uploads/1/3/2/3/132302718/9033489.pdf
    • http://zimoxumok.vishmayahealingarts.com/uploads/1/3/1/8/131871899/3498179.pdf
    • http://files.harveystringteaching.com/uploads/1/3/1/4/131407530/xujujuvikon.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/tiked.pdf
    • https://cdn.shopify.com/s/files/1/0448/4536/7453/files/english_speaking_books_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/51324032319.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/tobajabiwizimur.pdf
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/nakidejumisalukitase.pdf
    • https://cdn.shopify.com/s/files/1/0439/9392/3742/files/35688956849.pdf
    • https://cdn.shopify.com/s/files/1/0438/4188/0224/files/losodakuravusenabuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5030/2616/files/auxiliary_verbs_worksheet.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_off000064c2.bin
c8b5b934038394681912ca1c8b261ca692a95be2c5bdbd3f14e22abf1b26e551		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64C2 5700 bytes
font_01_sfnt_off00007810.bin
b5d81d8750ec19ef73ffe7d1c990ed8390d11c0fc31efdf672679f10666a6f9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7810 10908 bytes

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