Analysis

  • max time kernel
    148s
  • max time network
    137s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    18/07/2026, 04:16

General

  • Target
    2026-07-17_38026e25c5ac1720d1af0c0d1d3e7d7d_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
  • Size 2.2MB
  • Sample260718-evxcrsf15k
  • SHA256 bec41ca992fa82863e705d6186f06835c97dbe55790a6e24bf8d776e3429fe3c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: CosmicDuke,TinyBaron

    CosmicDuke aka TinyBaron is an information stealer used by the APT29 group.

  • Detects CosmicDuke or TinyBaron 5 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 42 IoCs

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

  • Drops file in System32 directory 16 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies Control Panel 5 IoCs
  • Modifies data under HKEY_USERS 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-17_38026e25c5ac1720d1af0c0d1d3e7d7d_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-17_38026e25c5ac1720d1af0c0d1d3e7d7d_coinminer_cosmicduke_elex_redline-stealer_rhadamanthys_s.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Enumerates connected drives
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_win_path
    PID:2692
    • C:\Windows\SysWOW64\wdmurl.exe
      C:\Windows\SysWOW64\wdmurl.exe /combine local system
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:812
  • C:\Windows\SysWOW64\wdmurl.exe
    C:\Windows\SysWOW64\wdmurl.exe
    1⤵
    • Executes dropped EXE
    PID:5116
  • C:\Windows\SysWOW64\uiras.exe
    "C:\Windows\SysWOW64\uiras.exe" nsx
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:4488
  • C:\Windows\SysWOW64\uiras.exe
    C:\Windows\SysWOW64\uiras.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5856

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        netenv.scr

        • Path C:\Users\Admin\AppData\Local\Temp\netenv.scr
        • Size 3KB
        • SHA256 47f3405ab0da5af125bcc6ebb6d17a1573b090c54d7a0a00630ec170ccc4b9d1
        • MD5 SHA1 SHA512 TLSH

        ntuser{4CB43D7F-7DCA-4906-8698-FFFFFFFF8094E303}.pol

        • Path C:\Users\Public\Documents\ntuser{4CB43D7F-7DCA-4906-8698-FFFFFFFF8094E303}.pol
        • Size 4B
        • SHA256 443c07a2c83b7b0253a325d2b72ac757c3aa5b41cd749842bc74fb3ee9b26866
        • MD5 SHA1 SHA512

        uiras.exe

        • Path C:\Windows\SysWOW64\uiras.exe
        • Size 2.2MB
        • SHA256 7da3898281562df727a548b8bdfffc19d7c331eeda2b9d695e260304fafdc8df
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wdmurl.exe

        • Path C:\Windows\SysWOW64\wdmurl.exe
        • Size 1.5MB
        • SHA256 954e0fe9a31f16f26a10e98d54c7da9e0c8b7d260092d9bb590a16523a050c37
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2692-4-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/2692-5-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/2692-0-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/2692-3-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/2692-2-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/2692-1-0x0000000000423000-0x0000000000424000-memory.dmp

        memory/4488-34-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/4488-72-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/5856-73-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/5856-74-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/5856-75-0x0000000000400000-0x00000000005B4000-memory.dmp

        memory/5856-77-0x0000000000400000-0x0000000000438000-memory.dmp