Malicious PDF — malware analysis report

Static analysis result for SHA-256 e606f8eed6af0348…

MALICIOUS

PDF

47.1 KB Created: 2020-08-31 05:54:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 912ae1013720b2004707203f81e2b74e SHA-1: a01aac2235033e62cc8c2700eaecf6fde1c38da5 SHA-256: e606f8eed6af03481f2122ea740b13e641041d1ef4e9342a1a8e409ed070637f
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/wix?keyword=zung+anxiety+scale+pdf'. This URL is presented within the document body, suggesting a social engineering lure. The document also contains a large number of embedded links to other PDFs, flagged as a link farm. No scripts were extracted, but the presence of a malicious redirector indicates a likely attempt to lead the user to a malicious site, potentially for further exploitation or credential harvesting.

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.me/wix?keyword=zung+anxiety+scale+pdf
    • https://static.usrfiles.com/ugd/dc8a8e_1925fee36fa74070ae18355c01e231a1.pdf
    • https://static.usrfiles.com/ugd/3aee12_b20e415ee5a143cab510f7eb1ee9b04d.pdf
    • https://static.usrfiles.com/ugd/ea9bdf_db6774af00624e41a34254502bb9c3e8.pdf
    • https://cdn.shopify.com/s/files/1/0430/3313/3209/files/severe_asymptomatic_hypertension_evaluation_and_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0435/3127/2346/files/70657991911.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/62704714853.pdf
    • https://static.usrfiles.com/ugd/b444d4_c7d80b9078e3480da8b57e4c9beeb7e6.pdf
    • https://static.usrfiles.com/ugd/191a6d_c80312bc0300411f8421f354feb67db0.pdf
    • https://static.usrfiles.com/ugd/5de1df_51203ce2129241c980b5dbbf1e38dceb.pdf
    • https://static.usrfiles.com/ugd/b8c837_ad01a2cd2bd547ffaabd8f668dfa0f6c.pdf
    • https://static.usrfiles.com/ugd/39cb9d_01d88881882645d8849990d22cbd0718.pdf
    • https://static.usrfiles.com/ugd/b8c837_d1f77c90893a4412aaa3473ad3b14f38.pdf
    • https://static.usrfiles.com/ugd/6f7357_fee373827be044598c89a98106123497.pdf
    • https://static.usrfiles.com/ugd/63d3ad_027f770e37e94d91ba0f8bf66d07ddd9.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_off00007888.bin
2a6f577819e9ea0f51ec0b620fac00a13f1e61331f7db7405280133ee13a2437		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7888 5356 bytes
font_01_sfnt_off00008ae9.bin
dfff713e7055bc32d7edccd56ebe8c23ebc11a6b5d61cbd37226915aded5b6db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE9 10908 bytes

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