Malicious PDF — malware analysis report

Static analysis result for SHA-256 94485c77adeeaabc…

MALICIOUS

PDF

156.1 KB Created: 2020-09-17 22:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 060450324a98bc369355cb86cfaea656 SHA-1: a50f3615936492888f49a7a2b3a2231fdca096d0 SHA-256: 94485c77adeeaabc11deffa9f576a268eaa49f899d5b1858da8708fa2ff7bc3c
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/wix?keyword=rwby+beacon+statue'. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence for the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 2

  • 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.
  • 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=rwby+beacon+statue
    • http://files.cherylgrayfineart.com/uploads/1/3/1/3/131383476/xemoxadefe.pdf
    • http://rajufurem.erminsinanovic.com/uploads/1/3/1/4/131437515/nasuburum.pdf
    • http://ruwadez.asmilebuiltin.com/uploads/1/3/2/7/132740778/6771653.pdf
    • http://pimebolo.energyoftheempires.com/uploads/1/3/0/7/130739656/japubozi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/79961044810.pdf
    • https://cdn.shopify.com/s/files/1/0428/9003/5366/files/67684067885.pdf
    • https://cdn.shopify.com/s/files/1/0433/4485/5195/files/xokaruxavunugav.pdf
    • https://cdn.shopify.com/s/files/1/0459/0433/0906/files/what_are_macrophages_answers._com.pdf
    • https://cdn.shopify.com/s/files/1/0437/1234/8315/files/windows_command_prompt_commands.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72593533024.pdf
    • https://cdn.shopify.com/s/files/1/0436/2010/6404/files/xupujoxe.pdf
    • https://9836bf29-0d7b-458e-a23b-ae6bdf5b7481.filesusr.com/ugd/83b1b3_e5c513fc48b6449bb21efbf7209509ce.pdf?index=true
    • https://26030b44-aa2a-4905-8820-ef2659a42851.filesusr.com/ugd/0ebc1f_3690bc54314b445582597a29fc166688.pdf?index=true
    • 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
font_00_sfnt_off00020bdf.bin
1e4631525d69e6887a357f38d349d0656bef899901639c7c78000373379c39ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20BDF 5176 bytes
font_01_sfnt_off00021de6.bin
dee581a6f22fb79739a86639693ee857b381b97e83e44d6dd85fbd8800eaeea8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21DE6 4840 bytes
font_02_sfnt_off00022e7e.bin
d9a961736db1f1d4e7d1dfa3448a2a640f61afba4a36aee8bba27224ac65a926		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22E7E 11120 bytes
font_03_sfnt_off00025410.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25410 4324 bytes

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