Malicious PDF — malware analysis report

Static analysis result for SHA-256 c486ba9eda110679…

MALICIOUS

PDF

39.7 KB Created: 2020-08-11 06:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9250916ccadccc0344fbd190d0ea5510 SHA-1: 8a0dae7f157a6c29ad43241bbd1e42d6122f0526 SHA-256: c486ba9eda110679dae165e7202fee786831a63059fd9b108ea427b78d05ed58
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL. The PDF also contains a mass external link farm, with many links pointing to shopify.com domains, likely for SEO poisoning to improve search engine ranking for malicious content. 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.cc/pify?keyword=carolinas+healthcare+system+consumer+analytics+pdf
    • http://files.wigginsphotographymn.com/uploads/1/3/0/8/130815009/kosawizisojali.pdf
    • http://files.aryanbhasin.com/uploads/1/3/1/6/131607827/cf354dcbd5.pdf
    • http://files.littleacornsgodstone.com/uploads/1/3/0/7/130775950/datije_ravel_bonozubukexik_xaxexerugujuf.pdf
    • http://files.broadwaysingingcenter.com/uploads/1/3/2/8/132814067/56408d0eb0.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38684703775.pdf
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/87472407950.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9487/files/whirlwind_barbarian_diablo_3.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/high_school_physics_textbook_mcgraw_hill.pdf
    • https://cdn.shopify.com/s/files/1/0431/3120/7837/files/93712109122.pdf
    • https://cdn.shopify.com/s/files/1/0430/7209/4362/files/70237102222.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/82830493890.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/21434078721.pdf
    • https://cdn.shopify.com/s/files/1/0431/9952/9120/files/peguvadazezini.pdf
    • https://cdn.shopify.com/s/files/1/0437/4849/1425/files/manualidades_de_papel_para_nios.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_off00005d11.bin
d2d89e4671257fa5dd8570337c8b9fa880d00be16d16bd997a31e2810a38b854		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D11 5404 bytes
font_01_sfnt_off00006f4b.bin
1f28a696f290d3d219b71178c10ed2024eba2a5b8e890e5503361682fad78fb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4B 10000 bytes

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