Malicious PDF — malware analysis report

Static analysis result for SHA-256 3840dd4c13ebd4c8…

MALICIOUS

PDF

50.6 KB Created: 2020-08-03 23:49:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7738486b1e9ef8ee5857d3f3be74971b SHA-1: 6c1ffce0b8c19936c30e3588658ed24e29f7b2e2 SHA-256: 3840dd4c13ebd4c8712b1d514665b4100961e1c708f423702b24c98a96462434
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify-hosted PDFs, which is indicative of a link farm or SEO spam campaign. One of the primary links, https://ttraff.com/pify?keyword=wagamama+drinks+menu+pdf, is identified as a malicious redirector. This suggests the document's purpose is to direct users to malicious infrastructure, likely for further exploitation or phishing.

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=wagamama+drinks+menu+pdf
    • http://files.peacockpointontario.ca/uploads/1/3/0/8/130814055/5265126.pdf
    • http://files.serenitywholisticliving.com/uploads/1/3/1/3/131397955/widavajumibu.pdf
    • http://files.lifeandmissionchoir.com/uploads/1/3/0/7/130775108/26451.pdf
    • http://files.moredoorclassics.com/uploads/1/3/0/9/130969402/09df75a.pdf
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/gobebexenitidopenit.pdf
    • https://cdn.shopify.com/s/files/1/0433/1801/8216/files/rewivijus.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suxuteregejo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0323/8811/files/tasonizuruvaferoweg.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/13246832716.pdf
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/revupufemux.pdf
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/peparede.pdf
    • https://cdn.shopify.com/s/files/1/0432/4956/5853/files/guretemotunumal.pdf
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/99607499938.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43545787384.pdf
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/80110086759.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7104/files/fewekajopipa.pdf
    • https://cdn.shopify.com/s/files/1/0434/3300/1126/files/halo_combat_evolved_cd_keys.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000978f.bin
8f1c18b3cc7e5fa33d46aa9e80b34786aab04d1a2c9b2e5d0f08e49df1153b2d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x978F 21316 bytes
font_00_sfnt_off00004f13.bin
166e0a52d632ff90fd77a1b4b1e5cc82648f4fc449bda689477baf49de02be29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F13 5404 bytes
font_01_sfnt_off00006169.bin
4c97ccd354d878f2bd7cb81fa5873fe05161e669df4b8f9e7d2df333a7980c51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6169 7848 bytes
font_02_sfnt_off000074b7.bin
47cadd50b89eca20fc5f7737a9adc9380a48391791507e59175ca1ddfb0f3d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B7 10124 bytes

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