Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ad7e2dfb2e0de42…

MALICIOUS

PDF

42.0 KB Created: 2020-08-31 07:49:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1a00c55b01b5ca5d2b10fcd0a28663e6 SHA-1: c4c7f4048523ef496b3fc27bd25ae05aed210ae2 SHA-256: 4ad7e2dfb2e0de424b6d57fbba879f4fbc45e5250906a8501779efc773d50ec2
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to trick the user into downloading a file or navigating to a compromised site.

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=acsm+file+to+pdf
    • https://static.usrfil
    • https://cdn.shopify.com/s/files/1/0449/4727/5931/files/59916734219.pdf
    • https://cdn.shopify.com/s/files/1/0434/8333/2773/files/past_tense_simple_and_continuous_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0443/8904/0294/files/intel_graphic_media_accelerator_950.pdf
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/81025882864.pdf
    • https://cdn.shopify.com/s/files/1/0431/1223/5159/files/mifefikavibegitefugapekas.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3639/files/vonizewotiwukawobet.pdf
    • https://cdn.shopify.com/s/files/1/0428/2449/9367/files/81052196750.pdf
    • https://cdn.shopify.com/s/files/1/0434/2494/0184/files/ordering_decimals_worksheet_year_7_tes.pdf
    • https://static.usrfiles.com/ugd/ae059d_b8930775ea444234a19ba21af2ebcf40.pdf
    • https://static.usrfiles.com/ugd/d4a9d6_038667ca4f714b73942b166c1ab4046c.pdf
    • https://static.usrfiles.com/ugd/b8c837_13069e5ea59e426e91a94cabcaab5760.pdf
    • https://static.usrfiles.com/ugd/33a2e4_348be1a645a3404b8cf13e13405df161.pdf
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/fitudixegefukegojupogi.pdf
    • https://cdn.shopify.com/s/files/1/0440/1784/4382/files/xosuzuzirafi.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_off000067a2.bin
6df16f68d3bc31b0ff565825fcae77c32a2bb7efa2f7914666f9c65203d7f5e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67A2 4984 bytes
font_01_sfnt_off00007880.bin
82f7514cb78acbf49d3b105335e2b79e9487994962a7eb1d5d49e903b31b9e4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7880 10128 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.