Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 01:01

General

  • Target
    01a976b80253450a09d0b89075f5fa923a3411265f7bc8f3413d059fd662aa83.exe
  • Size 3.0MB
  • Sample240613-bc8rassapp
  • SHA256 01a976b80253450a09d0b89075f5fa923a3411265f7bc8f3413d059fd662aa83
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • XMRig Miner payload 16 IoCs
  • xmrig

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

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 3 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Drops file in Windows directory 19 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • Views/modifies file attributes 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\01a976b80253450a09d0b89075f5fa923a3411265f7bc8f3413d059fd662aa83.exe
    "C:\Users\Admin\AppData\Local\Temp\01a976b80253450a09d0b89075f5fa923a3411265f7bc8f3413d059fd662aa83.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Windows\debug\c3p\cmd.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\WINDOWS\Debug\c3p\svchost.exe
        C:\WINDOWS\Debug\c3p\svchost.exe install "Networks2" C:\WINDOWS\Debug\c3p\systems.exe
        3⤵
        • Executes dropped EXE
        PID:3052
      • C:\Windows\SysWOW64\sc.exe
        sc config "Networks2" DisplayName= "Networksrs2"
        3⤵
        • Launches sc.exe
        PID:2092
      • C:\Windows\SysWOW64\sc.exe
        sc description "Networks2" "Microsoft Windows Networks"
        3⤵
        • Launches sc.exe
        PID:2996
      • C:\Windows\SysWOW64\sc.exe
        sc start "Networks2"
        3⤵
        • Launches sc.exe
        PID:5060
      • C:\Windows\SysWOW64\attrib.exe
        attrib C:\Windows\debug\c3p +h +a
        3⤵
        • Sets file to hidden
        • Drops file in Windows directory
        • Views/modifies file attributes
        PID:4116
      • C:\Windows\SysWOW64\attrib.exe
        attrib C:\Windows\debug\c3p\*.json +h +a +s +r
        3⤵
        • Sets file to hidden
        • Drops file in Windows directory
        • Views/modifies file attributes
        PID:2960
      • C:\Windows\SysWOW64\attrib.exe
        attrib C:\Windows\debug\c3p\*.exe +h +a +s +r
        3⤵
        • Sets file to hidden
        • Drops file in Windows directory
        • Views/modifies file attributes
        PID:4432
      • C:\Windows\SysWOW64\netsh.exe
        netsh advfirewall firewall add rule name="tcp all" dir=in protocol=tcp localport=0-65535 action=allow
        3⤵
        • Modifies Windows Firewall
        PID:2152
  • C:\WINDOWS\Debug\c3p\svchost.exe
    C:\WINDOWS\Debug\c3p\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\WINDOWS\Debug\c3p\systems.exe
      "C:\WINDOWS\Debug\c3p\systems.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:696

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        cmd.bat

        • Path C:\Windows\debug\c3p\cmd.bat
        • Size 478B
        • SHA256 da2faa5eb4171dd5272402dab13e882445a9e8f114defea3caabd2ad841e24f4
        • MD5 SHA1 SHA512

        config.json

        • Path C:\Windows\debug\c3p\config.json
        • Size 2KB
        • SHA256 ee17b3a37459ed492847d2dc003f4904dcbf0d1579416474ac8c7b07ca96b81c
        • MD5 SHA1 SHA512

        svchost.exe

        • Path C:\Windows\debug\c3p\svchost.exe
        • Size 288KB
        • SHA256 472232ca821b5c2ef562ab07f53638bc2cc82eae84cea13fbe674d6022b6481c
        • MD5 SHA1 SHA512 SSDEEP

        systems.exe

        • Path C:\Windows\debug\c3p\systems.exe
        • Size 7.9MB
        • SHA256 d0cf7388253342f43f9b04da27f3da9ee18614539efdc2d9c4a0239af51ddbe4
        • MD5 SHA1 SHA512 SSDEEP

        memory/696-26-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-29-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-24-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-25-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-22-0x000002B0A6170000-0x000002B0A6190000-memory.dmp

        memory/696-27-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-28-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-23-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-30-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-31-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-32-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-33-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-34-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-35-0x00007FF791830000-0x00007FF792333000-memory.dmp

        memory/696-36-0x00007FF791830000-0x00007FF792333000-memory.dmp