Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c8e1f41ca6176a…

MALICIOUS

PDF

55.8 KB Created: 2020-08-31 11:27:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb28124bed7de9286ebbfa8be0c02fd6 SHA-1: c9aa8b7ba1c85e5eb4e1c329a0efecbddce93d6c SHA-256: e6c8e1f41ca6176a69a0bf242ec1f3774b65a20f6a2048c001378f5a71c898db
150 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.cc', which is flagged as a malicious redirector. The document body, though heavily garbled, contains text suggesting a lure for a movie, aligning with the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content or phishing pages. No scripts were extracted, limiting the analysis of direct payload execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/wix?keyword=las+ventajas+de+ser+invisible+pelicula+completa+espa%25C3%25B1ol+latino+online
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/68403930970.pdf
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/41882720070.pdf
    • https://cdn.shopify.com/s/files/1/0440/1322/4094/files/attestation_sur_l_honneur_de_prise_en_charge.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/wuguxebowopizaz.pdf
    • https://static.usrfiles.com/ugd/b8c837_6f776df66d0d40f7ade6c47fe730638f.pdf
    • https://static.usrfiles.com/ugd/b8c837_9dae75d72c464edbb56a972af28a8fab.pdf
    • https://static.usrfiles.com/ugd/b8c837_90644722b4944c36be91780c1542a9de.pdf
    • https://static.usrfiles.com/ugd/35e1ce_7f6d9e26f8c84198ad6f5d2e517bd475.pdf
    • https://static.usrfiles.com/ugd/430cb2_329868ac7ca7489eb4f2b74833d2d5e0.pdf
    • https://static.usrfiles.com/ugd/02beb7_dbdf7e67a5694e3485d0d96efe8c82f8.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e2332e9d968435c90a88c7900c7f6ca.pdf
    • https://static.usrfiles.com/ugd/5de1df_632e29ef7d524760b427204d4d83dc0e.pdf
    • https://static.usrfiles.com/ugd/bb13a2_bdcfe0d471e740068e7c86f2ab5e506c.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf34964ee53040f0ae4f55e428970441.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e3e.bin
63270527b6c820905ca78790a9bf0a93da94abecfcaecf235d90e3699debfa37
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E3E 5648 bytes
font_01_sfnt_off00009110.bin
e5218d8ee99dadb5c707df455013b80fea3cb015bbad75b6f5c128185a745e85
pdf-font-stream PDF embedded font (sfnt) at offset 0x9110 6200 bytes
font_02_sfnt_off0000a25d.bin
c8591eb3973735cd9b69bb6792e269600ac649c399fc03dfff1b048786df9863
pdf-font-stream PDF embedded font (sfnt) at offset 0xA25D 14388 bytes