Malicious PDF — malware analysis report

Static analysis result for SHA-256 33966efff6714f9a…

MALICIOUS

PDF

38.8 KB Created: 2020-08-04 15:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a9e613c112b8eca2082c927f67a74f5 SHA-1: aa68d10f1e55bbaafb610c183508a4e02d163943 SHA-256: 33966efff6714f9a3b94c6aa16540f1791e6e79d8378954d7edce6e1d1c577f9
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, contains references to the redirector URL and other benign-looking PDF links, suggesting a lure to disguise malicious activity. The primary intent appears to be redirecting the user 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.ru/pify?keyword=basketball+ball+handling+workout+pdf
    • http://files.godsvineyardchurch-loughborough.org/uploads/1/3/1/4/131438419/wodukufiliwafu.pdf
    • http://files.thegardentoronto.com/uploads/1/3/1/4/131438672/43222ff7e.pdf
    • http://files.rememberingreiki.com/uploads/1/3/2/3/132302883/mopobimozamuperujex.pdf
    • http://files.prettysbeauty.com/uploads/1/3/1/4/131483265/87f687.pdf
    • http://files.thompsonsphotos.org/uploads/1/3/0/8/130874332/mugetifojosefu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/bugifemagadikonotiga.pdf
    • https://cdn.shopify.com/s/files/1/0429/8289/9871/files/37875142034.pdf
    • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/national_design_specification_for_wood_construction.pdf
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/34388241562.pdf
    • https://cdn.shopify.com/s/files/1/0429/0949/9551/files/21950329048.pdf
    • https://cdn.shopify.com/s/files/1/0436/5733/0853/files/masivasulazo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/59254530689.pdf
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/4404339946.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9949/files/51479440027.pdf
    • https://cdn.shopify.com/s/files/1/0436/0817/8850/files/tegiji.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_off000058a1.bin
ae94f90d2efdd96488a831eee9d45d9a7f3c2ed586417529b9c67e30fc577002		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58A1 5648 bytes
font_01_sfnt_off00006bde.bin
3429a781bcf34e94b429daaf91c67e157babfbbd2d0183ac557be44a649c1e8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDE 10040 bytes

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