Analysis

  • max time kernel
    146s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    29/07/2026, 06:32

General

  • Target
    2026-07-29_cbb76be9ed7f375a73ef149892f4f815_icedid_stealc.exe
  • Size 29.1MB
  • Sample260729-hal8vaef99
  • SHA256 e893810f7f33c241e760732de7404508fdf17ab518f7ff5afeccecdb3d9ae682
  • 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 (526) 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 3 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 12 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).

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies data under HKEY_USERS 49 IoCs
  • Modifies registry class 24 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Runs ping.exe 1 TTPs 1 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-29_cbb76be9ed7f375a73ef149892f4f815_icedid_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-29_cbb76be9ed7f375a73ef149892f4f815_icedid_stealc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2104
    • 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:1544
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /C ping 127.0.0.1 -n 2 > nul & del /F /Q "C:\Users\Admin\AppData\Local\Temp\2026-07-29_cbb76be9ed7f375a73ef149892f4f815_icedid_stealc.exe"
      2⤵
      • Executes a command shell one-liner
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Windows\system32\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:116
  • 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:2492
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C7003194481AF923AE00EA5D2811FC4C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1724
    • 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:2636
    • 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:456
    • 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:3932
    • 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:1652
  • 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:4164
  • 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:4560
    • 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:948
      • 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:1668
    • 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:3868
    • 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:6232

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e58bfe3.rbs

        • Path C:\Config.Msi\e58bfe3.rbs
        • Size 470KB
        • SHA256 1ff18bdfc7f97c0f5f3895760005b8b096abdce253723f6fbb8c868551fe3f03
        • 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

        MSIC781.tmp

        • Path C:\Windows\Installer\MSIC781.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/456-121-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/456-120-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/948-152-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/948-153-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/948-172-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/1652-147-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/1652-146-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/1668-170-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/1668-171-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/2636-99-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/2636-98-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-155-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/3868-174-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-252-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-154-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-210-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-238-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-217-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-199-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-224-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-245-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-231-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-183-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3868-190-0x00000000003E0000-0x0000000001595000-memory.dmp

        memory/3932-125-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/3932-124-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4164-140-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/4164-139-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-185-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-167-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-150-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/4560-212-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-247-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-219-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-193-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-226-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-179-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-233-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-205-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-240-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/4560-149-0x0000000000030000-0x00000000016B0000-memory.dmp

        memory/6232-204-0x000000006D280000-0x000000006D9B6000-memory.dmp

        memory/6232-203-0x0000000000030000-0x00000000016B0000-memory.dmp