Malicious PDF — malware analysis report

Static analysis result for SHA-256 b05adf40996f8f48…

MALICIOUS

PDF

62.7 KB Created: 2020-07-30 15:49:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a8fda9d21908e4c34e5e9333590478b SHA-1: 9595769b68079b45bf7b0225738499b0429f5cc9 SHA-256: b05adf40996f8f48629756a5a6f937bcab8a63f8b3588625a43dc46e959bdd32
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with critical heuristics identifying it as a malicious redirector and a link farm. One of the primary links directs to 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'world capital cities list pdf'. The presence of multiple Shopify-hosted PDF links further indicates a coordinated effort to distribute 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.ru/pify?keyword=world+capital+cities+list+pdf
    • http://files.rockfishgrovefwbchurch.com/uploads/1/3/1/1/131164386/4647d.pdf
    • http://files.krispykleanautospa.com/uploads/1/3/2/6/132681772/3c2763.pdf
    • http://files.operationbluepride.org/uploads/1/3/2/6/132681836/2904233.pdf
    • https://cdn.shopify.com/s/files/1/0429/0864/7580/files/rusel.pdf
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/23024133959.pdf
    • https://cdn.shopify.com/s/files/1/0429/1608/5923/files/70870631143.pdf
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/614981916.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdf
    • https://cdn.shopify.com/s/files/1/0436/3314/8062/files/58989675389.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4499/files/lefepemotawifekowununeg.pdf
    • https://cdn.shopify.com/s/files/1/0440/8773/8533/files/52590283654.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.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/
    • https://cdn.shopify.com/s/f

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a9f1.bin
6dfc089d5fdc455a6adee64af970cad556e506d8070e91af050a7dececb2b97f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9F1 4844 bytes
font_01_sfnt_off0000ba7b.bin
d8e4b7f44dfb66ea49c7f1cefd345a391fade3fb548cc17de4cdbf151663dabd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA7B 6068 bytes
font_02_sfnt_off0000ca2c.bin
a5094ed0b36ce37a02d516d73409b592575b7dafd4c5dde4fc183474f014bb46		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA2C 10392 bytes

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