Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe57203689fb436e…

MALICIOUS

PDF

35.9 KB Created: 2020-09-07 21:31:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c85c8f3d0d972bab098c0ca9cbacff8 SHA-1: 1f000a75b97cb9b0f6e290f0f9ea9d38c4ba4e02 SHA-256: fe57203689fb436e22d10116195b8681b865d56ed22bb5954a201e4f15b37725
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The heuristic firings indicate this PDF is designed as a link farm, likely to obscure the final malicious destination. The presence of a 'download button' lure further supports a malicious intent to trick the user into clicking the link. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.link/wix?keyword=screamin+eagle+super+tuner+maps
    • https://cdn.shopify.com/s/files/1/0437/5232/5272/files/sajovelokifamip.pdf
    • https://cdn.shopify.com/s/files/1/0430/5816/7959/files/tubisasabigasa.pdf
    • https://cdn.shopify.com/s/files/1/0434/4774/6710/files/sowumakaripovuxitunobotif.pdf
    • https://static.usrfiles.com/ugd/aec2ea_5440be4127f947e59717c43f26a71614.pdf
    • https://static.usrfiles.com/ugd/89363e_98a1d1e04720461680df57e24b5a0594.pdf
    • https://static.usrfiles.com/ugd/978dd5_786ff937c15b4bb483aeb530250b4dd6.pdf
    • https://static.usrfiles.com/ugd/b8c837_59a7624cf41444e48289a3ad5d33b00f.pdf
    • https://static.usrfiles.com/ugd/72216b_be30f0e85d5648b784c28d3181287cd0.pdf
    • https://static.usrfiles.com/ugd/80c1db_fc9a535aad2f4ce4a0844b908bfab037.pdf
    • https://static.usrfiles.com/ugd/b8c837_256face7412840ebbca2064dbaf5c13f.pdf
    • https://static.usrfiles.com/ugd/1e11d0_3de33fb2da9c49f3acc9bb60e056deb8.pdf
    • https://cdn.shopify.com/s/files/1/0436/6997/9289/files/86582176775.pdf
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/sql_server_2020_tutorial_with_examples_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4670/7104/files/pefixe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4789/4683/files/characteristics_of_financial_information.pdf
    • https://cdn.shopify.com/s/files/1/0431/2642/3708/files/besuvunasesinufegerup.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_off00004c9d.bin
e08e355ce4b055d4ad5e062df8c268763c6ccadae56e5486a7ff3957abedecca
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C9D 5356 bytes
font_01_sfnt_off00005ec3.bin
0466c57328b7bdac669bf18a2c47a0fa49b3d86b1dbfd4c0f0cf5dff2d5b7c22
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC3 10464 bytes