Malicious PDF — malware analysis report

Static analysis result for SHA-256 3624dbd9a6ad34d4…

MALICIOUS

PDF

37.1 KB Created: 2020-09-19 01:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0615ccdb9a2c1c293a9c50824a8cbbe7 SHA-1: 56bec0539bb58fc4e2e4e35384f8857277696590 SHA-256: 3624dbd9a6ad34d46b441eebdd3d5e3077b9d3a240b7c793e8f933c7165b7c97
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic legitimate content, directing users to a malicious redirector URL. The primary malicious URL identified is https://ttraff.club/wix?keyword=goal+zero+guide+10+plus+adventure+kit+v3. This technique is often used for phishing or to distribute further malware. No scripts were extracted, but the PDF structure and embedded links strongly indicate malicious intent.

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.club/wix?keyword=goal+zero+guide+10+plus+adventure+kit+v3
    • https://cdn.shopify.com/s/files/1/0465/3862/1087/files/fasaxatorefanebajerufas.pdf
    • https://cdn.shopify.com/s/files/1/0440/9776/5528/files/90665970978.pdf
    • https://cdn.shopify.com/s/files/1/0480/4942/2495/files/ubee_cable_modem_default_login_spectrum.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/bofiropesilom.pdf
    • https://5959f75f-ce17-405c-971a-94e16ddb9b77.filesusr.com/ugd/2994dd_ce5cce2586dd462e8528a14166b0cbb4.pdf?index=true
    • https://ab3a6eb4-fa10-43a2-96a4-9dcc81705b21.filesusr.com/ugd/9b33c5_d33cae0674794ab1a12687f79a965c55.pdf?index=true
    • https://8e66d2d9-3db2-4144-8b95-a11efd45f1ad.filesusr.com/ugd/7f46b5_7bfa5f2e31cd4e63a956822999e8d1c6.pdf?index=true
    • https://97fac679-9888-4768-8770-5f199bd4f383.filesusr.com/ugd/7baf93_4b0c0f996bc049c89e9eda2aeb90edbb.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/38117170343.pdf
    • https://cdn.shopify.com/s/files/1/0436/0133/0339/files/journal_international_capital_structure.pdf
    • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/27945542702.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_off00004fe7.bin
f1898e7c865c1c0028832d288d2043c3479168d05b21744eaa63dfc27d12ba7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FE7 5688 bytes
font_01_sfnt_off0000636f.bin
84438e3b3b780a24b04a18196a848ec6836fb41e1c0074029c6961205208a6e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x636F 10720 bytes

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