Malicious PDF — malware analysis report

Static analysis result for SHA-256 b003b470432c1d54…

MALICIOUS

PDF

39.6 KB Created: 2020-08-11 01:33:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 717e59123a8ca29598c9b30e33fa7200 SHA-1: df6af5635abec8708238647133683fa932ed85d8 SHA-256: b003b470432c1d54c4444349dc764abbf32a1bf73a04fe7a187b63b5e76278dc
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'supply chain management' and the malicious URL, suggesting a lure. The heuristic firings confirm the presence of a malicious redirector link and a link farm within the PDF, indicating an attempt to drive traffic to malicious infrastructure.

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=supply+chain+management+s+chopra+pdf
    • http://baxokon.djmcwho.com/uploads/1/3/1/6/131637814/1848869.pdf
    • http://files.theartboxstudio.com/uploads/1/3/0/8/130815014/19af2b6.pdf
    • http://files.immanuelchildrensfoundation.org/uploads/1/3/2/6/132682768/7920975.pdf
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/nifopawefinufanebeka.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28851780814.pdf
    • https://cdn.shopify.com/s/files/1/0434/6091/9446/files/19244611639.pdf
    • https://cdn.shopify.com/s/files/1/0439/2891/2040/files/jobekolirukos.pdf
    • https://cdn.shopify.com/s/files/1/0433/6818/6015/files/florida_workers_compensation_exemption_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/3468/1250/files/fiba_official_basketball_rules.pdf
    • https://cdn.shopify.com/s/files/1/0436/4202/8190/files/38404531941.pdf
    • https://cdn.shopify.com/s/files/1/0430/9712/9109/files/niwuluxonapinikotix.pdf
    • https://cdn.shopify.com/s/files/1/0430/9457/3205/files/minecraft_how_to_get_command_block.pdf
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/72273118591.pdf
    • https://cdn.shopify.com/s/files/1/0438/2621/7120/files/savage_arms_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/6408/1046/files/nokowabakabosus.pdf
    • https://cdn.shopify.com/s/files/1/0429/3797/4950/files/74206690291.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_off00005b54.bin
4aabdda5960d8d95804cd9f46b30e6736f8aa1ccc3281865a20c0b74c3e34d3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B54 5776 bytes
font_01_sfnt_off00006ed0.bin
09ccf065a6db41324762cb694a61f106fdab8da528153dfb108c910440894897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED0 10152 bytes

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