Malicious PDF — malware analysis report

Static analysis result for SHA-256 86cd74d57514ba36…

MALICIOUS

PDF

46.5 KB Created: 2020-09-17 22:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6ac480047a7d6f3d53a3a6498e5c60e SHA-1: 5294e82638efe3116570039524f7b269923798ae SHA-256: 86cd74d57514ba3687297f85a4d367eeb63b322e113d709e3d4a10a963e52f01
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Lebron James no trade clause' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious.

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.me/wix?keyword=lebron+james+no+trade+clause
    • https://cdn.shopify.com/s/files/1/0430/6147/7527/files/shooting_games_free_for_pc_softonic.pdf
    • https://cdn.shopify.com/s/files/1/0437/1821/3797/files/6490978963.pdf
    • https://cdn.shopify.com/s/files/1/0434/0993/2439/files/sami_gta_sa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/creating_equations_worksheet_tes.pdf
    • https://cdn.shopify.com/s/files/1/0435/8746/9471/files/86300237207.pdf
    • https://cdn.shopify.com/s/files/1/0431/0653/3525/files/zopidorodoridibojexi.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9397/files/61978952296.pdf
    • https://5f7962bf-c45b-404e-b8d5-2bf996618847.filesusr.com/ugd/eb6c48_f265d52df0ef4b91abbd2eadb2bfadb9.pdf?index=true
    • https://6efa8ff2-0e90-409d-9183-3479277e7ddb.filesusr.com/ugd/221eaa_692a2e879848409bb5b5a0655187830a.pdf?index=true
    • https://28c0c36b-2f60-4d6d-bdbe-a821e367c6b2.filesusr.com/ugd/154db6_c43253a95cb442689ef9609a265c5024.pdf?index=true
    • https://63adb2c0-c01d-4fb8-a4b8-954b45d0d678.filesusr.com/ugd/895bef_b04b0e45b9df43138b6eb8a8adea63a1.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0429/2201/6934/files/83241723547.pdf
    • https://cdn.shopify.com/s/files/1/0457/6103/6444/files/charitable_trust_deed_format.pdf
    • https://cdn.shopify.com/s/files/1/0428/2089/4886/files/kanuxetamuvij.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_off000078f6.bin
980910e1fbcf9ce54342d0cfc9c2d75c598e0c64c7f9ca3269e99ca1c12c7081		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78F6 5240 bytes
font_01_sfnt_off00008ab1.bin
85f8cf4ceea954d9759c01e499b79ca10b5d63a3784fc9a6dbbadc45e3094751		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB1 10172 bytes

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