Malicious PDF — malware analysis report

Static analysis result for SHA-256 94f4ce3cd1c23fcf…

MALICIOUS

PDF

47.4 KB Created: 2020-08-10 07:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6009c4c8581b5659fcd8fc013f619f67 SHA-1: 857cfed9ca4045356587dc92ecd8e9bc44d77bd1 SHA-256: 94f4ce3cd1c23fcf832a21264dd2ed7b6abaa0212bae45e52ed94838a2fc948e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests the document is designed to lead users to malicious content, likely for phishing or malware distribution. The presence of numerous links, including the malicious one, indicates a link farm or redirection strategy to obscure the final 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.com/pify?keyword=liberalismo+caracteristicas+pdf
    • http://files.frcteam2151.com/uploads/1/3/1/1/131163832/09ec4562a65.pdf
    • http://files.bemisfarmsnursery.com/uploads/1/3/2/3/132303099/taxiwobomedogofene.pdf
    • http://files.veradoverartist.com/uploads/1/3/1/1/131164152/divuzo-tupij.pdf
    • http://files.surreymusicschool.co.uk/uploads/1/3/0/7/130775623/9117419.pdf
    • https://cdn.shopify.com/s/files/1/0431/3346/8839/files/31030646959.pdf
    • https://cdn.shopify.com/s/files/1/0430/4008/0023/files/how_to_read_ukulele_tabs.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/fowopabunanavafe.pdf
    • https://cdn.shopify.com/s/files/1/0429/2873/4367/files/funny_discord_servers.pdf
    • https://cdn.shopify.com/s/files/1/0435/7731/1395/files/58296105668.pdf
    • https://cdn.shopify.com/s/files/1/0432/3491/8558/files/fegirinegituxali.pdf
    • https://cdn.shopify.com/s/files/1/0428/9203/4211/files/31357796468.pdf
    • https://cdn.shopify.com/s/files/1/0429/0733/6857/files/artful_arpeggios.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67142307476.pdf
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/19033688735.pdf
    • https://cdn.shopify.com/s/files/1/0438/3752/2085/files/chemistry_and_chemical_reactivity_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/4057744073.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_off0000788f.bin
320198acd67beba231dcf07ebb1890c80132c8ca815ff4f0ad86d1e066f82251
pdf-font-stream PDF embedded font (sfnt) at offset 0x788F 5384 bytes
font_01_sfnt_off00008ac3.bin
a070d233e625d578ecea05a3d78fd00e63094919e582feb1ddd566dd38b72266
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC3 11216 bytes