Malicious PDF — malware analysis report

Static analysis result for SHA-256 9deedea1cce65873…

MALICIOUS

PDF

43.1 KB Created: 2020-08-12 01:09:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8be316103df7c5f3b8b156aa52de0a4d SHA-1: 8a5f7f113a25210a1fddf3f2f0949966b61b4572 SHA-256: 9deedea1cce658735d4fb8702d5f446a2895dfa7bda0bde996a50d78a37a18c2
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to 'ttraff.cc'. This indicates a link farm or redirection scheme designed to obscure the ultimate destination. The document body, though heavily corrupted, contains the same lure text as the malicious URL, suggesting the primary purpose is to trick users into clicking the malicious link. No scripts were extracted, but the PDF structure and link farm are strong indicators of a malicious delivery mechanism.

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=design+thinking+in+architecture+pdf
    • http://files.canineharmony.ca/uploads/1/3/1/8/131856333/3345280.pdf
    • http://files.trappstarmuzik.com/uploads/1/3/0/8/130814205/lojopugevazabobute.pdf
    • http://domuf.pftsports.com/uploads/1/3/1/4/131406686/zovop.pdf
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/wulimevuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/tivuxetebakaboladafuxon.pdf
    • https://cdn.shopify.com/s/files/1/0437/6936/4632/files/ebook_machine_learning_c_bn.pdf
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/infinite_geometric_series_formula.pdf
    • https://cdn.shopify.com/s/files/1/0432/5549/6866/files/python_calculator_gui.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1924/files/zotero_annotate.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/biligotej.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/7034540032.pdf
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/riran.pdf
    • https://cdn.shopify.com/s/files/1/0434/3313/2184/files/97309002913.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6918/files/ceo_andhra_pradesh_voter_list_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/mivoninawabu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0305/1175/files/biosecurity_in_poultry_production.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_off00006a70.bin
fc0bb6f0174ad3d48f68ed3081700e405c1651fa312f72e402ca426a758c894f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A70 5448 bytes
font_01_sfnt_off00007cef.bin
ae4e37b8546620774e12fd5c722314207ff949af59c68a04123165b43d96db74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CEF 10088 bytes

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