Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b102f07b206953e…

MALICIOUS

PDF

40.0 KB Created: 2020-09-02 20:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 907fb14ad3eb40eeadcc29715585fc0b SHA-1: 7355953d991a6164239a2e80c1004f4d6099088d SHA-256: 9b102f07b206953e2674ef82a68030e21bd4c5b4dab455533c25bbf537329ca5
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/wix?keyword=sliding+barn+door+center+guide'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the first identified as 'https://cdn.shopify.com/s/files/1/0434/0649/1797/files/sibovevakop.pdf'. The document body, though heavily obfuscated, contains the redirector URL, suggesting the primary intent is to direct users 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.link/wix?keyword=sliding+barn+door+center+guide
    • https://cdn.shopify.com/s/files/1/0434/0649/1797/files/sibovevakop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6565103434.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/belize_passport_application_form_4a.pdf
    • https://static.usrfiles.com/ugd/b8c837_7094a8965da7427196345dcf8399505a.pdf
    • https://static.usrfiles.com/ugd/b8c837_e022dddd4185465698943bf8c13a8487.pdf
    • https://static.usrfiles.com/ugd/7f5dc5_77d09f3f1b1f454798a93c751822342d.pdf
    • https://static.usrfiles.com/ugd/b88e3d_b8115e4f584240ff9b56c713a2a12b85.pdf
    • https://static.usrfiles.com/ugd/57c819_eca28ddcb6954250b114c9779d7118b6.pdf
    • https://static.usrfiles.com/ugd/269bb8_8daf03d1cf53460f9c3ce29e57a83491.pdf
    • https://static.usrfiles.com/ugd/b8c837_2d96980ea4e847a6a7880b82de79ca64.pdf
    • https://static.usrfiles.com/ugd/b8c837_5838c8f1798b4f7faba07b119040f1ba.pdf
    • https://static.usrfiles.com/ugd/eb6612_5c7cb8df593940bcb1f8a5cea73ab696.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_off00005e8c.bin
f0ffab2c79a4403e3514f710dd49f7a5090fe70d20d9c432dd0939404430ba18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8C 5172 bytes
font_01_sfnt_off0000702a.bin
0aea219e73de6522e159ffc67a189b582b75acf75bb88f9ec08b4bbf49471b3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x702A 10520 bytes

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