Malicious PDF — malware analysis report

Static analysis result for SHA-256 9229b901be034c32…

MALICIOUS

PDF

57.5 KB Created: 2020-08-19 21:04:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5dc6f0f40d2cf3dff42b6e1ea9ddc08b SHA-1: 967448132174c340993f6eda1351ff20b3daee12 SHA-256: 9229b901be034c3280302505fda0c5e2afe64e7db73d2385e5fbd07d96ed5715
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic suggests the document is part of a link farm, likely for SEO manipulation or to distribute malicious content. The embedded URL in the document body, 'https://ttraff.cc/pify?keyword=free++new+fonts+for+logo+design', is a known malicious redirector. The document's purpose appears to be social engineering, using the lure of free fonts to trick users into clicking the malicious link.

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=free++new+fonts+for+logo+design
    • http://files.kansasmidwives.com/uploads/1/3/0/9/130969548/binumetabaraxoruju.pdf
    • http://files.cbaofga.com/uploads/1/3/0/8/130814297/f3fecdfa948.pdf
    • https://cdn.shopify.com/s/files/1/0436/1335/6189/files/php_if_statement.pdf
    • https://cdn.shopify.com/s/files/1/0428/7637/1110/files/befuwefefuvuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9023/1974/files/tumumaxupetomagu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6929/3223/files/osrs_combat_guide_p2p.pdf
    • https://cdn.shopify.com/s/files/1/0440/3209/8469/files/accepted_2006_subtitles.pdf
    • https://cdn.shopify.com/s/files/1/0437/2535/7210/files/nbcsn_live_stream_free.pdf
    • https://cdn.shopify.com/s/files/1/0445/4046/1220/files/ikea_catalogue_2020_uk.pdf
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/32855201048.pdf
    • https://cdn.shopify.com/s/files/1/0435/9671/0047/files/eclampsia_definition.pdf
    • https://cdn.shopify.com/s/files/1/0437/5661/7877/files/cash_book_class_11_notes.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_off0000a5eb.bin
6e1f742801f39071f37705a1f5ce67adc9a4c0e2433ed45e1c876f278276ca75		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5EB 4912 bytes
font_01_sfnt_off0000b6c2.bin
3706ec8b55055f7150a2234a045880820f6b6276169f2e4ce30236142bcc5074		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6C2 10156 bytes

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