Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dda356cb2eb1ae7…

MALICIOUS

PDF

42.9 KB Created: 2020-08-26 01:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 772981138161b3544b3880c55eca8bf1 SHA-1: 91df43825e0ea25322886f6895d5e64cdeed218d SHA-256: 4dda356cb2eb1ae7142650192e91a9ab9e616725298ed4f445a4140238399cec
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. This URL redirects to `ttraff.com`, which is flagged as malicious. The PDF also contains numerous links to shopify.com, likely part of a link farm to improve SEO for malicious content.

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=el+hombre+mas+rico+de+babilonia+libro+completo+pdf
    • http://files.robertjbrunet.com/uploads/1/3/2/7/132740424/sivapes.pdf
    • http://files.janinehartley.com.au/uploads/1/3/1/3/131398542/tabam-tiruzosiked-daxite-fukaviradari.pdf
    • http://lunemif.on-demand-marketing.com/uploads/1/3/1/4/131482995/ada604637a481e.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/nizozanageb.pdf
    • https://cdn.shopify.com/s/files/1/0432/7361/7568/files/admixture_used_in_concrete.pdf
    • https://cdn.shopify.com/s/files/1/0457/7338/9980/files/arduino_pro_mini_168_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/9265/5782/files/zofupodek.pdf
    • https://cdn.shopify.com/s/files/1/0435/6158/2755/files/68441361242.pdf
    • https://cdn.shopify.com/s/files/1/0434/6049/3474/files/ratake.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1706/files/mabidakaduwa.pdf
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/tesura.pdf
    • https://cdn.shopify.com/s/files/1/0430/7546/9473/files/pharmaceutical_gmp_audit_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/8694/6206/files/58624127132.pdf
    • https://cdn.shopify.com/s/files/1/0435/2180/2404/files/javascript_pass_by_reference.pdf
    • https://cdn.shopify.com/s/files/1/0456/4477/5591/files/niterutuso.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_off00006643.bin
f269d92dc21f6dd83df103f3e659f216a905ceb3cd583a9fcf972bb19ddeb90a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6643 5492 bytes
font_01_sfnt_off000078bf.bin
66c49bd406d525f605dd0b9d92983396936f7144c6e65fb3ba203675bab40585		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78BF 11156 bytes

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