Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e6edc7f7af33f5…

MALICIOUS

PDF

46.1 KB Created: 2020-08-02 21:37:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53cf29a33c37acbbcfe20ad63ae9cfda SHA-1: bdf91de645c08d4bffa5e40ffd93ec92e2cf10ad SHA-256: 48e6edc7f7af33f5d8db3117d7f992fba140a721b4fc8a21acd46031a3d821f7
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm and another pointing to a known malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=suffix+ness+meaning. The document body is heavily obfuscated and contains many of the linked URLs, suggesting a coordinated effort to distribute malicious content or phish users.

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/pify?keyword=suffix+ness+meaning
    • http://files.clareyarrington.com/uploads/1/3/1/8/131856173/bd37161b0.pdf
    • http://files.senbisamassagetherapy.co.uk/uploads/1/3/0/8/130813778/2731752.pdf
    • http://files.engagedtohitched.co.uk/uploads/1/3/1/4/131438389/4020818.pdf
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/pasijobutomolazaduraberol.pdf
    • https://cdn.shopify.com/s/files/1/0428/7276/6631/files/lerosetuviguf.pdf
    • https://cdn.shopify.com/s/files/1/0431/4755/9067/files/poribajuvar.pdf
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/wuweloj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74535711799.pdf
    • https://cdn.shopify.com/s/files/1/0439/0017/4504/files/somisufeto.pdf
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/wamuvuti.pdf
    • https://cdn.shopify.com/s/files/1/0434/0131/4456/files/65297315443.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/muxuwixozoja.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/sunevaditagufe.pdf
    • https://cdn.shopify.com/s/files/1/0436/4373/2126/files/89832954241.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_off00005f70.bin
6425042c8deb476a42fe5fede9fdc91c222b21294b682837181fc4a93b815d37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F70 5132 bytes
font_01_sfnt_off000070db.bin
69e4b582436ab63d60d363393b85b88e4aa02c4ee83ec385dc36b7dbf27abf16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70DB 10608 bytes
font_02_sfnt_off00009525.bin
9f2ade6b9c6367c875391f324106d86678ee4d82a7e6763594ed1a31da83c7d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9525 16144 bytes

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