{
  "Event": {
    "analysis": "1",
    "date": "2026-06-03",
    "extends_uuid": "",
    "info": "[Threat Intel] Inside DesckVB Rat Analysis: From Malspam to In-Memory RAT",
    "protected": false,
    "publish_timestamp": "1780629669",
    "published": true,
    "threat_level_id": "3",
    "timestamp": "1780629669",
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    "Orgc": {
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      "uuid": "cd9bd516-61fa-476b-980f-2f8de03992d4"
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        "local": false,
        "name": "misp-galaxy:producer=\"Huntress\"",
        "relationship_type": ""
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        "local": false,
        "name": "tlp:clear",
        "relationship_type": ""
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        "local": false,
        "name": "type:OSINT",
        "relationship_type": ""
      },
      {
        "colour": "#b94b1d",
        "local": false,
        "name": "rectifyq:mitre-att&ck=\"none-from-src\"",
        "relationship_type": ""
      },
      {
        "colour": "#b94b1d",
        "local": false,
        "name": "rectifyq:mitre-att&ck=\"from-OTX\"",
        "relationship_type": ""
      },
      {
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        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Scheduled Task - T1053.005\"",
        "relationship_type": ""
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      {
        "colour": "#47d9d3",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Malicious File - T1204.002\"",
        "relationship_type": ""
      },
      {
        "colour": "#51b040",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"InstallUtil - T1218.004\"",
        "relationship_type": ""
      },
      {
        "colour": "#5539fe",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Spearphishing Attachment - T1566.001\"",
        "relationship_type": ""
      },
      {
        "colour": "#7d7034",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"System Information Discovery - T1082\"",
        "relationship_type": ""
      },
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        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Native API - T1106\"",
        "relationship_type": ""
      },
      {
        "colour": "#a92e1c",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Deobfuscate/Decode Files or Information - T1140\"",
        "relationship_type": ""
      },
      {
        "colour": "#43c8db",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Process Injection - T1055\"",
        "relationship_type": ""
      },
      {
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        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Modify Registry - T1112\"",
        "relationship_type": ""
      },
      {
        "colour": "#461928",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Indicator Blocking - T1562.006\"",
        "relationship_type": ""
      },
      {
        "colour": "#0c0051",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"File and Directory Discovery - T1083\"",
        "relationship_type": ""
      },
      {
        "colour": "#1cbe6b",
        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Virtualization/Sandbox Evasion - T1497\"",
        "relationship_type": ""
      },
      {
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        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Mshta - T1218.005\"",
        "relationship_type": ""
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        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"PowerShell - T1059.001\"",
        "relationship_type": ""
      },
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        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Registry Run Keys / Startup Folder - T1547.001\"",
        "relationship_type": ""
      },
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        "local": false,
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        "relationship_type": ""
      },
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        "name": "misp-galaxy:mitre-attack-pattern=\"Obfuscated Files or Information - T1027\"",
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      },
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        "name": "misp-galaxy:mitre-attack-pattern=\"Query Registry - T1012\"",
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        "name": "misp-galaxy:mitre-attack-pattern=\"Windows Command Shell - T1059.003\"",
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        "local": false,
        "name": "misp-galaxy:mitre-attack-pattern=\"Web Protocols - T1071.001\"",
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        "name": "rectifyq:category=\"threat\"",
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        "local": false,
        "name": "rectifyq:sub-category=\"campaign-analysis\"",
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        "local": false,
        "name": "rectifyq:target=\"broad-based\"",
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        "name": "rectifyq:MY-relevancy=\"potentially-relevant\"",
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        "name": "rectifyq:no-samples-in=\"MalwareBazaar\"",
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        "name": "rectifyq:no-samples-in=\"Tria.ge\"",
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        "local": false,
        "name": "rectifyq:action-taken=\"VT-comment\"",
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        "local": false,
        "name": "rectifyq:action-taken=\"telegram\"",
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    ],
    "Attribute": [
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        "category": "External analysis",
        "comment": "",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1780570837",
        "to_ids": false,
        "type": "link",
        "uuid": "bc8d862c-2bbd-4e4b-a93d-f58861ad0bef",
        "value": "https://www.huntress.com/blog/malspam-to-deskcvb-rat-delivery-chain-analysis"
      },
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        "category": "Other",
        "comment": "Description",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1780570837",
        "to_ids": false,
        "type": "text",
        "uuid": "9da3d517-961e-4f15-9369-f97c397ded75",
        "value": "DesckVB RAT emerged in February 2026 through a sophisticated malspam campaign utilizing a dynamic delivery kit that personalizes lures on-the-fly by extracting victim email addresses and pulling company logos in real-time. The attack chain routes through Google's DoubleClick domain to evade email gateways before delivering a five-stage infection: HTML redirect, JScript loader, PowerShell dropper, .NET loader, and finally the RAT itself. The malware employs extensive anti-analysis techniques including sandbox detection, forced reboots upon detection, and in-memory execution via .NET reflection. Once established, it patches AMSI and ETW at the native API level, injects into legitimate Microsoft-signed binaries like InstallUtil.exe and MSBuild.exe, and establishes persistence through registry keys and scheduled tasks. The RAT communicates with DDNS-based C2 infrastructure on non-standard ports, performs system reconnaissance including GPU enumeration possibly for crypto mining, and can deliver additional payl..."
      },
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        "comment": "Summary",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1780570837",
        "to_ids": false,
        "type": "text",
        "uuid": "7a6e2693-2bf3-42ed-9651-fa4f7eeaf0af",
        "value": "Name: Inside DesckVB Rat Analysis: From Malspam to In-Memory RAT\nAuthor: AlienVault\nAdversary: \nTags: [\"in-memory execution\", \"venomrat\", \"amsi bypass\", \"desckvb rat\", \"jscript loader\", \"malspam\"]\nTgtd countries: []\nMlwr families: [\"DesckVB RAT\", \"VenomRAT\"]\nAttack_ids: [\"T1053.005\", \"T1204.002\", \"T1218.004\", \"T1566.001\", \"T1082\", \"T1106\", \"T1140\", \"T1055\", \"T1112\", \"T1562.006\", \"T1083\", \"T1497\", \"T1218.005\", \"T1059.001\", \"T1547.001\", \"T1562.001\", \"T1055.012\", \"T1027\", \"T1012\", \"T1059.003\", \"T1071.001\"]\nIndustries: []"
      },
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        "comment": "",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1780626827",
        "to_ids": true,
        "type": "hostname",
        "uuid": "02755b4a-3111-4c2a-b4af-a273f2949d2b",
        "value": "xtadts.ddns.net",
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            "relationship_type": ""
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      },
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        "comment": "",
        "deleted": false,
        "disable_correlation": false,
        "timestamp": "1780626848",
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        "comment": "No sample in VT\r\nLast check:05/06/2026",
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        "type": "sha256",
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        "type": "hostname",
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        "disable_correlation": false,
        "timestamp": "1780626911",
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