Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0196fd70668c22…

MALICIOUS

PDF

48.4 KB Created: 2020-08-06 06:43:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81da4aec03997f775d96f91e0d6d9bcf SHA-1: 408d51c07e22f4fa6ef6c32efb75b02284813a23 SHA-256: fb0196fd70668c22f0e1e28d24987820044bc4d42605f92c77b10083a0923bb0
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector at ttraff.com. This suggests the document is designed to lure users into clicking malicious links, likely leading to further compromise. The presence of numerous shopify.com links indicates a link farm strategy to improve search engine visibility 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=cursive+alphabet+practice+pdf
    • http://files.catereedphotography.com/uploads/1/3/1/4/131483235/8529443.pdf
    • http://files.boonerplots.com/uploads/1/3/0/8/130813448/xiluxiriporumupiso.pdf
    • http://files.seizediem.com/uploads/1/3/1/4/131438741/vewim_gifesimefipotu.pdf
    • https://cdn.shopify.com/s/files/1/0436/7027/4201/files/80848451787.pdf
    • https://cdn.shopify.com/s/files/1/0433/5419/4085/files/zugijevat.pdf
    • https://cdn.shopify.com/s/files/1/0439/4686/8891/files/42187823113.pdf
    • https://cdn.shopify.com/s/files/1/0435/9123/7794/files/fundamental_electrical_troubleshooting.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/vocabulary_list_for_bank_po_exam.pdf
    • https://cdn.shopify.com/s/files/1/0439/6669/3534/files/occupational_therapy_for_autism.pdf
    • https://cdn.shopify.com/s/files/1/0430/2821/8010/files/76756004097.pdf
    • https://cdn.shopify.com/s/files/1/0440/0077/2254/files/arbatel_de_magia_veterum_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/xobamaborinakodosavivunew.pdf
    • https://cdn.shopify.com/s/files/1/0434/8893/6102/files/vyond_comedy_world_character_creator_github.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_off000077fe.bin
64c39e6073540eb1cc7b8182e63769008cccccf076afed98e0dee94768070e02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77FE 5348 bytes
font_01_sfnt_off00008a21.bin
67bd90db5b37a94d73e62dfe6db543b00ee26bb002ae4512ca9d2379d0de2063		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A21 13420 bytes

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