Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b9dcd68d1f63019…

MALICIOUS

PDF

108.6 KB Created: 2020-09-09 20:04:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9135e4a27240972efa990bfb9a427745 SHA-1: 13c2040d566c9de232a2ce07f63210cbabd023a9 SHA-256: 2b9dcd68d1f630198b90aa828e8bbfd4a9a97d46aaa5479d467262e5168f57ad
120 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, which is a common technique for delivering malicious payloads or phishing pages. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, and the embedded URL points to 'https://ttraff.ru/wb?keyword=amadeus%20selling%20platform%20manual'. The PDF also features a link farm, as indicated by PDF_SEO_LINK_FARM, suggesting an attempt to manipulate search engine results or distribute content widely. No scripts were extracted from this sample.

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.ru/wb?keyword=amadeus%20selling%20platform%20manual
    • https://cdn.shopify.com/s/files/1/0462/5763/5479/files/rifoburinobutat.pdf
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/customs_declaration_form_japan.pdf
    • https://cdn.shopify.com/s/files/1/0440/9766/7224/files/algorithm_and_flowchart_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0437/0844/8919/files/lapirurimusifapovutex.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37263727017.pdf
    • https://cdn.shopify.com/s/files/1/0431/6663/0050/files/aha_cpr_guidelines_2017_chart.pdf
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/4292587846.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6486/files/40434051372.pdf
    • https://static.usrfiles.com/ugd/70c1f8_94d4a5616c6949598b47b99fc476c72e.pdf
    • https://static.usrfiles.com/ugd/b8c837_b24f09a0afc94eb8a3a36743a3374409.pdf
    • https://static.usrfiles.com/ugd/cec570_c155b55852a44dfb800e55f7ee575370.pdf
    • https://static.usrfiles.com/ugd/3fc21f_57e0af4ce0d345c5a9d98f2e4ee1dde3.pdf
    • https://static.usrfiles.com/ugd/b8c837_a84918c81c784b88a640d33f38f09a31.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_off00016b0d.bin
5dd15045b3910a0677215c3ca0f32f7babcdf1a5099a2b29a950866827c559fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16B0D 5348 bytes
font_01_sfnt_off00017d29.bin
d0f9cc3580bbf6c84bb3f6de5af633c37f8f80ec5555f942e9a7c26db27fa208		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17D29 12688 bytes

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