Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/07/2026, 06:54

General

  • Target
    2026-07-30_72ed0a1664cf63a528cd0129e78fe84c_icedid_stealc.exe
  • Size 27.8MB
  • Sample260730-hphh7sem9v
  • SHA256 ec05b31b000a2c90f656a1cebfec65921ef84eb416ba838e87f59e1440120140
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: RuRAT

    RuRAT is a remote admin tool sold as legitimate software but regularly abused in malicious phishing campaigns.

  • Contacts a large (522) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Executes dropped EXE 10 IoCs
  • Loads dropped DLL 11 IoCs
  • Badlisted process makes network request 4 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 18 IoCs
  • Drops file in Program Files directory 57 IoCs
  • Drops file in Windows directory 19 IoCs
  • Embeds OpenSSL 1 IoCs

    Embeds OpenSSL, may be used to circumvent TLS interception.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 49 IoCs
  • Modifies registry class 24 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 40 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-30_72ed0a1664cf63a528cd0129e78fe84c_icedid_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-30_72ed0a1664cf63a528cd0129e78fe84c_icedid_stealc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Windows\system32\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Windows\Temp\msx_install.msi" /qn /norestart
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2460
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:972
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 68C2CC3539C0AE47232CCCF804B99793
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3044
    • C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
      "C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe" -msi_copy "C:\Windows\Temp\msx_install.msi"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4336
    • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
      "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" /silentinstall
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4088
    • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
      "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -firewall
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4404
    • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
      "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" /start
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:5028
  • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
    "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -service
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:952
  • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
    "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -service
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
      "C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4260
      • C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
        "C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe" /tray
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:4904
    • C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
      "C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe" /tray
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1112
    • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
      "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -firewall
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:7860

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        e58630d.rbs

        • Path C:\Config.Msi\e58630d.rbs
        • Size 470KB
        • SHA256 e5f9625e5a1bedf9aa8a39cf54e40ab4c5fe459dd32bead16a6f7bcffe7d3b28
        • MD5 SHA1 SHA512 SSDEEP TLSH

        EULA.rtf

        • Path C:\Program Files (x86)\Remote Utilities - Host\EULA.rtf
        • Size 63KB
        • SHA256 ff89e44b7e6b7c8c9a84c67e40bde6491f851b0e6e4143ac8f665538eec11e87
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Privacy_policy.rtf

        • Path C:\Program Files (x86)\Remote Utilities - Host\Privacy_policy.rtf
        • Size 139KB
        • SHA256 1fcb0c18d74b4157752a5776ca47bf31f893453b4bcb82ba67b402769d054c26
        • MD5 SHA1 SHA512 SSDEEP TLSH

        eventmsg.dll

        • Path C:\Program Files (x86)\Remote Utilities - Host\eventmsg.dll
        • Size 57KB
        • SHA256 badd947460e6ac9ef7d9abc286054b5b73e17ab5694f827f26d56203974f1ea2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libasset32.dll

        • Path C:\Program Files (x86)\Remote Utilities - Host\libasset32.dll
        • Size 9.4MB
        • SHA256 299b3f5e49d3303e0a4793fee52a1165c340a560729115f1a4d421d6f0416fa5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libcodec32.dll

        • Path C:\Program Files (x86)\Remote Utilities - Host\libcodec32.dll
        • Size 5.9MB
        • SHA256 a4a53244ea6bafa55c6f1c4b13da9a6a77e758842593e51b01b34dc137465930
        • MD5 SHA1 SHA512 SSDEEP TLSH

        licenses.txt

        • Path C:\Program Files (x86)\Remote Utilities - Host\licenses.txt
        • Size 19KB
        • SHA256 4ef24da2e7933364af0c7918207927283d0b7664c615b888cc80843d7a62faa4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        rfusclient.exe

        • Path C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
        • Size 17.0MB
        • SHA256 e4b203c315f44799e4945c3b95501b9bf5480bda5ff596dadbfebdb39996020a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        rutserv.exe

        • Path C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
        • Size 21.7MB
        • SHA256 6fc8237bbb1cb778bf7735fd92963cd1f95acd44e7c987c40e9349ed5be85327
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vp8decoder.dll

        • Path C:\Program Files (x86)\Remote Utilities - Host\vp8decoder.dll
        • Size 384KB
        • SHA256 851093c801f9f2f3ba670ff2c14c0a673b17efd72731c28a49ca3dcb64b57718
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vp8encoder.dll

        • Path C:\Program Files (x86)\Remote Utilities - Host\vp8encoder.dll
        • Size 1.6MB
        • SHA256 1fad67e1677401751b4c1ef7d18167174f72c247d8656e99a91104901d1b1400
        • MD5 SHA1 SHA512 SSDEEP TLSH

        webmmux.dll

        • Path C:\Program Files (x86)\Remote Utilities - Host\webmmux.dll
        • Size 264KB
        • SHA256 1a1b4441fc6fdaf8b9d4a5de3e5855e15217e3810f4aca21a5ca9bb70afab5b4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        webmvorbisdecoder.dll

        • Path C:\Program Files (x86)\Remote Utilities - Host\webmvorbisdecoder.dll
        • Size 369KB
        • SHA256 2d2a368c897f3aadeb4a8d0f46016f0148799fdc7b18059f1a6cce62883ae7de
        • MD5 SHA1 SHA512 SSDEEP TLSH

        webmvorbisencoder.dll

        • Path C:\Program Files (x86)\Remote Utilities - Host\webmvorbisencoder.dll
        • Size 864KB
        • SHA256 f858c62cac8d5063a3cffb8a7beb241725b94ab326e0bd2442dacb8e70461721
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSIA41B.tmp

        • Path C:\Windows\Installer\MSIA41B.tmp
        • Size 165KB
        • SHA256 1f6f0d9f136bc170cfbc48a1015113947087ac27aed1e3e91673ffc91b9f390b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msx_install.msi

        • Path C:\Windows\Temp\msx_install.msi
        • Size 27.6MB
        • SHA256 368e0ea4d2c7c8ed781a5692c7f21d1fe71c02374f4c26f053ab6d6e04180284
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/952-127-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/952-126-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/1112-213-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/1112-154-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/1112-182-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/1112-191-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/1112-234-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/1112-226-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/1112-220-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/1112-167-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/1112-206-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/1112-153-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/4088-115-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4088-116-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/4260-151-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/4260-152-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/4260-165-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/4336-92-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/4336-93-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/4404-120-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4404-121-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/4712-145-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-146-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/4712-169-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-236-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-184-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-156-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-195-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-229-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-222-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-215-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4712-208-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/4904-159-0x0000000000EF0000-0x00000000020A5000-memory.dmp

        memory/4904-160-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/5028-142-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/5028-144-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/5028-136-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/5028-135-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/7860-201-0x00000000000B0000-0x0000000001730000-memory.dmp

        memory/7860-202-0x000000006D280000-0x000000006D9B6000-memory.dmp