Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fc3ebc718297900…

MALICIOUS

PDF

47.8 KB Created: 2020-09-02 00:03:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 642cd00e584b0bb20990cc4c863afe5b SHA-1: e4446aae9c3c40dd4356b74d27548a39d4c20081 SHA-256: 1fc3ebc718297900d7e1f23fffbc27c1b9da19143c0182b6bf84fbee3eee98d5
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a link farm. The primary malicious URL, https://ttraff.com/wix?keyword=rowd+assamese+movie+video+songs, is identified as a redirector. The document body, though heavily obfuscated, contains references to this URL and appears to be part of a larger scheme to lure users to external sites.

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/wix?keyword=rowd+assamese+movie+video+songs
    • https://static.usrfiles
    • https://static.usrfiles.com/ugd/e4f6f0_8b54d42272684a1ab7270c09e78da277.pdf
    • https://static.usrfiles.com/ugd/902d29_30f94407d0944acdb9a804620e86c29d.pdf
    • https://static.usrfiles.com/ugd/b8c837_99c046e40dcc4af7983cd09e6ce7d7d5.pdf
    • https://cdn.shopify.com/s/files/1/0432/2043/5112/files/komalakelebosuzudazav.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/reynolds_foodservice_aluminum_foil_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1778/files/google_maps_timeline_gpx.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5600/files/articulos_cientificos_de_psicologia_clinica.pdf
    • https://static.usrfiles.com/ugd/73cb9e_3c98ffafbb2240dd8a414504610e1198.pdf
    • https://static.usrfiles.com/ugd/36d413_0ddec8f1c1334772bcd63a84d0c5f428.pdf
    • https://static.usrfiles.com/ugd/f967ac_7c8741b1e88c41ce98587da85c30e8dd.pdf
    • https://static.usrfiles.com/ugd/ff2e72_35cbaa60f9434e53ada0c46c900a61be.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/69749081031.pdf
    • https://cdn.shopify.com/s/files/1/0433/8194/8567/files/harper_s_bazaar_uk_march_2020.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_off00007b5e.bin
b2270fd8ca321058966223b78f05d33f2a646f67e0898a57da62192e7be939b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5E 5176 bytes
font_01_sfnt_off00008d0d.bin
dc3a07576a1433bf383bc4fda8760b2b4238e290fc6efbc4f90d3f9f29359706		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D0D 11312 bytes

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