Malicious PDF — malware analysis report

Static analysis result for SHA-256 51964806fd14610d…

MALICIOUS

PDF

42.4 KB Created: 2020-08-25 07:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 627545429405de18ea3985dfbd4fc7a3 SHA-1: 84c97a3d8640068eb91cae0f7e515ae364c1ff81 SHA-256: 51964806fd14610df9cbf78575d007d22ddbf4c22773c834a86705cdee5b21d8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a link disguised as 'Fnaf movie casting sheet' that redirects to malicious infrastructure at ttraff.ru. The document also functions as a link farm, embedding numerous links to other PDFs hosted on Shopify. This suggests a social engineering tactic to drive traffic to potentially malicious sites or to obscure the true destination of the initial malicious redirect.

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=fnaf+movie+casting+sheet
    • http://files.confit.co.nz/uploads/1/3/0/9/130969402/sitefibijulef-rugijesotokuda.pdf
    • http://files.catgiles.co.uk/uploads/1/3/0/9/130969166/0f37458f31524df.pdf
    • https://cdn.shopify.com/s/files/1/0433/5111/3887/files/pebisipivemikudamutop.pdf
    • https://cdn.shopify.com/s/files/1/0439/9644/6878/files/81598123885.pdf
    • https://cdn.shopify.com/s/files/1/0434/0006/9285/files/lumirademosamularezaxoja.pdf
    • https://cdn.shopify.com/s/files/1/0431/0718/8898/files/96688109730.pdf
    • https://cdn.shopify.com/s/files/1/0436/9897/8971/files/emotional_intelligence_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/9614/6074/files/escala_bristol_heces.pdf
    • https://cdn.shopify.com/s/files/1/0437/2260/4695/files/breadboard_layout.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.pdf
    • https://cdn.shopify.com/s/files/1/0464/3124/0344/files/20693309966.pdf
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/regoxirafi.pdf
    • https://cdn.shopify.com/s/files/1/0447/9824/7069/files/what_is_insurable_risk.pdf
    • https://cdn.shopify.com/s/files/1/0429/3040/5535/files/78409123123.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_off000067a4.bin
e8cebc559c6254c3bd5ea2c4b6be1b0183b40dff355ecd52896b2c623aa93442		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67A4 5184 bytes
font_01_sfnt_off00007936.bin
61e2a4af80bc71d3aa6b56671eace72a20f45a78a55f157fbc04b175e827329e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7936 10524 bytes

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