Malicious PDF — malware analysis report

Static analysis result for SHA-256 5237468c0d28b21d…

MALICIOUS

PDF

47.6 KB Created: 2020-08-31 19:09:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 434ab6ad987c103318914bc68637af74 SHA-1: cc7f0b1ac07087ba59791011a7df44b7e9fe66c0 SHA-256: 5237468c0d28b21df753c6e30689a8654dfb076a7629e58775e5ef2b95fa5450
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL, https://ttraff.com/wix?keyword=azur+lane+guide, is likely intended to lure the user to a malicious site. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a link farm or redirection tactic. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=azur+lane+guide
    • https://static.usrfiles.com/ugd/3bca44_bb75f1570a5a4088a2c7298f878a1f86.pdf
    • https://static.usrfiles.com/ugd/b8c837_1b1a633001ce4af7bdc2582769e90779.pdf
    • https://static.usrfiles.com/ugd/b8c837_0f6adbaeb7cd4742a24e39027182f8a7.pdf
    • https://static.usrfiles.com/ugd/89363e_23a69ca2574f4da0852ec1ea9580cab9.pdf
    • https://static.usrfiles.com/ugd/0e2875_0d722976470c4009af5d3c2dd60ec4a2.pdf
    • https://static.usrfiles.com/ugd/764aaa_a2eddce38ab04e0ca1287b52f6dc4fc4.pdf
    • https://static.usrfiles.com/ugd/c83fdb_d4e093e01805488a8b541e4f68688a87.pdf
    • https://static.usrfiles.com/ugd/345929_1529ef1c5e1b4768bd325ff7af1c3b49.pdf
    • https://cdn.shopify.com/s/files/1/0462/5340/8407/files/zamelo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4738/6262/files/alejandro_magno_libros.pdf
    • https://cdn.shopify.com/s/files/1/0438/3621/1362/files/business_card_templates_psd_format.pdf
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/vexaxizota.pdf
    • https://cdn.shopify.com/s/files/1/0434/1055/5034/files/kerogelidodub.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_off00007e30.bin
8f146a9a4244d9e9cd878c0e233467e07e308b5b95bde2c38b194a1d70605b20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E30 4856 bytes
font_01_sfnt_off00008ec6.bin
d1e36c1875bbc84c5a111991705dade96fdee01f67e85c0011bced989100e520		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC6 10356 bytes

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