Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f30644153d9a07…

MALICIOUS

PDF

39.0 KB Created: 2020-08-29 04:43:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 36c5b6aa2554056976bd8b71d5fece3e SHA-1: 417b0e7f2d17d541ef8646bf3931d9a6e93f5556 SHA-256: e2f30644153d9a0717ea32fda40ebb374a1c64ad4f2ed5ec753f422cc6005856
128 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely the primary malicious payload delivery mechanism. The presence of a 'download button' heuristic further supports the lure to click the malicious link.

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.com/wix?keyword=universal+dvr+viewer+software
    • https://cdn.shopify.com/s/files/1/0434/1510/9797/files/kixuxamonewizi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8204/5858/files/la_petite_sirne_histoire.pdf
    • https://cdn.shopify.com/s/files/1/0434/6213/1869/files/tugowe.pdf
    • https://static.usrfiles.com/ugd/b8c837_65242c9da00b488a82eb34ecaf09c1ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_9a5f7b912359476face0ef0e09a00ca9.pdf
    • https://static.usrfiles.com/ugd/b8c837_9811fecbd72c48fd95458bf410519333.pdf
    • https://static.usrfiles.com/ugd/b8c837_9dd1668e45fa4e5baa66a259ade62de2.pdf
    • https://cdn.shopify.com/s/files/1/0434/5528/3366/files/pisokopubores.pdf
    • https://cdn.shopify.com/s/files/1/0435/7318/2625/files/retencion_de_placenta.pdf
    • https://cdn.shopify.com/s/files/1/0438/6023/0294/files/tipping_point_gladwell.pdf
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/fovamigomafafesemasep.pdf
    • https://cdn.shopify.com/s/files/1/0432/3547/5624/files/87743453095.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_off00005b70.bin
4f551805bef48f597e1b5d1c98095091ccbe869560a1affce31da214b6231cbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B70 5044 bytes
font_01_sfnt_off00006cbb.bin
2d23c5c1c38a6847a6ddcfcce674d490d8d48f1c2645221f61bd5b58e2b2af7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBB 10544 bytes

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