Malicious PDF — malware analysis report

Static analysis result for SHA-256 8008d696fef6571a…

MALICIOUS

PDF

36.7 KB Created: 2020-08-09 15:37:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4da2131e7c6a7200a79b5834380354ea SHA-1: 3cfb0d65b7d33d897b683b42d6e3c9a15973772f SHA-256: 8008d696fef6571a1c4b53b37a6ba4b4b9b66b589de86b778c9fb73047f4e685
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body, though partially corrupted, suggests a lure related to an 'online shopping system project report'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' strongly indicates that the primary purpose is to redirect users to malicious infrastructure. The heuristic 'PDF_SEO_LINK_FARM' further supports this by showing a large number of outbound links, likely for SEO manipulation or to distribute the malicious payload.

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=online+shopping+system+project+report+pdf
    • http://folugin.allianceatlanta.org/uploads/1/3/2/6/132683014/ab9f21a32ffc.pdf
    • http://files.stonegategeo.com/uploads/1/3/2/7/132740804/15f6f1f63.pdf
    • http://files.oakgrovechristianschool.com/uploads/1/3/2/7/132740270/7703140.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6250/files/91662155103.pdf
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/90854941358.pdf
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/82439625393.pdf
    • https://cdn.shopify.com/s/files/1/0436/5526/6454/files/46451542326.pdf
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/38279453817.pdf
    • https://cdn.shopify.com/s/files/1/0429/3709/0211/files/2273541618.pdf
    • https://cdn.shopify.com/s/files/1/0430/6839/1591/files/regonisefewak.pdf
    • https://cdn.shopify.com/s/files/1/0429/2296/7206/files/1403219703.pdf
    • https://cdn.shopify.com/s/files/1/0438/6154/1014/files/accelerometer_sensor_in_robotics.pdf
    • https://cdn.shopify.com/s/files/1/0437/9122/0887/files/sixeperumewozesapajosewi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8869/0844/files/59554803664.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_off0000514f.bin
6530e8ea8aff0544fdea13215c8502a5ed3c6b1b0d4645deb3acd5b5102fb15a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x514F 5564 bytes
font_01_sfnt_off00006426.bin
ba5c6f09f707bc9e81d136a1e3d628d276ea83064fa2fc4070719068fd56c3bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6426 9860 bytes

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