Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc0f74173e666be4…

MALICIOUS

PDF

43.6 KB Created: 2020-08-17 14:11:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4482f524ea1735bde06778342a1117c SHA-1: 2e9996d78875d6376ec582d6930a46edf37de323 SHA-256: cc0f74173e666be4364432b7658db6138fc79bf7114af565bb9ca8344b1e20a3
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a guide for 'Dragon Age Inquisition'. The document body, though heavily obfuscated, contains this URL and other embedded URLs. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or scam attempt.

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.ru/pify?keyword=dragon+age+inquisition+ps4+nightmare+guide
    • http://files.decoratorinwiltshire.co.uk/uploads/1/3/2/7/132711970/c4eb7b48ee8.pdf
    • http://files.encroixdanceacademy.com/uploads/1/3/2/6/132682623/1281574.pdf
    • http://tatisi.freedombaptistasheville.org/uploads/1/3/1/4/131408849/xudugufap_pidaginef.pdf
    • http://files.jricheynash.com/uploads/1/3/2/6/132681392/vemanusobumo.pdf
    • http://files.rebeccawalzteachingportfolio.com/uploads/1/3/0/7/130776755/bedd9dcb5fe9f3d.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/92215998650.pdf
    • https://cdn.shopify.com/s/files/1/0434/8716/6628/files/keboliratupeforumajo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fokukivovasogu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdf
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/10969458741.pdf
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/1._9_4_mods.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/mezevidaruvasine.pdf
    • https://cdn.shopify.com/s/files/1/0436/5670/8254/files/91567327073.pdf
    • https://cdn.shopify.com/s/files/1/0432/3514/7933/files/widir.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_off00006be1.bin
894ac5ae0f66e2ce0533f790565092d610e0c6ed3a9339d53f1f66ff467d80c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE1 5556 bytes
font_01_sfnt_off00007e96.bin
8ffa7884fc1fff85ef6a2dce4d2bbd8e804920bd13fae33ee352b4d3f133ed29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E96 10240 bytes

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