Analysis

  • max time kernel
    123s
  • max time network
    99s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26-04-2024 20:50

General

  • Target

    fn-curl.exe

  • Size

    191KB

  • MD5

    13e5edffc2165407dc40a80b43460d84

  • SHA1

    87ffa041cb77ae10f44c65a6499a3c5285ec7e49

  • SHA256

    3a935bdbd8ab07b1717747ee324100da210f09290fa335eca7006b89019d3abc

  • SHA512

    0a47001813ad667263bcab43b90a7bdfe29c42b8741995b5d40db83e9273aa933670812b307687060e215b8de1d59c52d9b58f00b181dcff2f5ad48a25f31609

  • SSDEEP

    3072:lsZwZeLxvFUkkqy6YX72F54JrCI64G/D55w1by3YV8E6:qZwZe74AxjobJ

Score
1/10

Malware Config

Signatures

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 58 IoCs
  • Suspicious use of SendNotifyMessage 58 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fn-curl.exe
    "C:\Users\Admin\AppData\Local\Temp\fn-curl.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:336
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c mkdir "C:\users\conspiracy\downloads\fn-curl-mainv\fn-curl-main\nigger\x64\"
      2⤵
        PID:3144
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:3288
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\niggr.txt
        1⤵
        • Opens file in notepad (likely ransom note)
        PID:2252
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\niggr.txt.bat" "
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4620
        • C:\Windows\system32\Taskmgr.exe
          taskmgr
          2⤵
          • Checks SCSI registry key(s)
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:3032

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\Desktop\niggr.txt.bat

        Filesize

        7B

        MD5

        086d80648fd6c5de341d8c29558ce8e9

        SHA1

        40971f0260b787326a5e855527ffb7e32233d190

        SHA256

        e248981dfcf7c8cc8e12999cb2f16a0c79059b6880ad7d4796083c67e35cdd4e

        SHA512

        5587ac9f501abad3cc0f052115c941a20e503359f0b96ff14a17d4be7531d11009a44c1756f74aa9c17676250bed88a41ca71c3b1ca4f9562e459c2cdf378b26

      • memory/3032-4-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-6-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-5-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-10-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-16-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-15-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-14-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-13-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-12-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB

      • memory/3032-11-0x0000020014C00000-0x0000020014C01000-memory.dmp

        Filesize

        4KB