Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4569ecc31ffecda…

MALICIOUS

PDF

43.6 KB Created: 2020-09-17 00:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 026e77a4d612e1447da4470df6cfa87d SHA-1: 2f829cd0eae938b2bf02e8f4b05bb6335f2f9b5c SHA-256: a4569ecc31ffecda0eaa4270d716f2d91b389765462a811086ea8332e8eda5a4
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify, designed to obscure the ultimate destination. The primary malicious link, https://ttraff.link/wix?keyword=ff12+zodiac+age+official+guide+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the game 'FF12 Zodiac Age' and the URL, suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly indicates maliciousness.

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.link/wix?keyword=ff12+zodiac+age+official+guide+pdf
    • http://files.1drop2creativeart.com/uploads/1/3/1/8/131856331/newiwifileriv-pamuderavobamur.pdf
    • http://rasifoju.arrowcare.com/uploads/1/3/2/7/132710621/8344987.pdf
    • https://cdn.shopify.com/s/files/1/0430/8185/9225/files/adobe_premiere_tutorial_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/definition_of_accounting_standards.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/94756235396.pdf
    • https://cdn.shopify.com/s/files/1/0435/7026/6273/files/47150614905.pdf
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/28452189846.pdf
    • https://d5dc6f41-24b4-44d2-ac17-4d3b29eaab65.filesusr.com/ugd/44b221_2d0f13a0667a47c8a0b922444629ca24.pdf?index=true
    • https://280cfebc-1cc5-47ae-a457-3a63bf481cc6.filesusr.com/ugd/a3b54b_4b6fc0fd5bde4d53bd0c38eb2c64d993.pdf?index=true
    • https://338b4140-b0ca-4705-a12c-7d6cacfe3066.filesusr.com/ugd/314c35_4df00b81b80d48cc95f2aecbf14ed47f.pdf?index=true
    • https://6a055bb4-173c-4a63-8414-e5661112550a.filesusr.com/ugd/3d0627_b0faa312de2147e296c63764ef003488.pdf?index=true
    • https://96a4e658-dac1-40c7-b8cc-9d9c02eb2fa3.filesusr.com/ugd/4542d9_baaa7f92f1c34a20bd7286cb0d6d07dd.pdf?index=true
    • https://6a95d9f3-0c4e-4856-8410-ef9cb3d0d22a.filesusr.com/ugd/9c58c5_a8d3270ad0644b37a35550520f56c5bc.pdf?index=true
    • https://28a0d76e-e348-43ea-b61b-5e43c73d9715.filesusr.com/ugd/3d0627_b97c560c98344e5e830f745d99ea2294.pdf?index=true
    • https://4fafd9ec-2686-4b10-a2e5-459acde9e66b.filesusr.com/ugd/665c20_3a8e2f3035e543cd822a43bdb64e3042.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bc8.bin
1eec85157a89557e515217cb4df7323b94721f0c7f6bf2c2804a363eccd0f96e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC8 5240 bytes
font_01_sfnt_off00007dc8.bin
2dfb11ffafaa1f4a720e7a09fd92dde11d5c4ee422210c2379ea2947deffa437
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC8 10460 bytes