Analysis

  • max time kernel
    149s
  • max time network
    104s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    02/07/2025, 04:56

General

  • Target
    2025-07-02_13c524bca32f363a1d73bd1d5e2c0c9e_amadey_black-basta_coinminer_elex_rhadamanthys_smoke-loader_stop.exe
  • Size 7.3MB
  • Sample250702-fk6dcsstd1
  • SHA256 77ce00a7edbe8e3f1eb4573e5d6d6a0a7fe59e37773b8207f2f85d0a1048f18f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3308
      • C:\Users\Admin\AppData\Local\Temp\2025-07-02_13c524bca32f363a1d73bd1d5e2c0c9e_amadey_black-basta_coinminer_elex_rhadamanthys_smoke-loader_stop.exe
        "C:\Users\Admin\AppData\Local\Temp\2025-07-02_13c524bca32f363a1d73bd1d5e2c0c9e_amadey_black-basta_coinminer_elex_rhadamanthys_smoke-loader_stop.exe"
        2⤵
        • Drops startup file
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5788
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:5976
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:6044
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3204
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:5352

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          MicrosoftEdgeUpdateBroker.exe

          • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateBroker.exe
          • Size 7.4MB
          • SHA256 119978421011c148128a5f2bf72c0c20e5235ed0916db09f35e540a2fcd8f8f6
          • MD5 SHA1 SHA512 SSDEEP

          7zG.exe

          • Path C:\Program Files\7-Zip\7zG.exe
          • Size 8.0MB
          • SHA256 ff665da01c8df82ebfe8d4158e9d434b203b2d090617a3ffa85c98c0a98d06f7
          • MD5 SHA1 SHA512 SSDEEP

          vcredist_x86.exe

          • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
          • Size 7.8MB
          • SHA256 fed54b7918d6618f97351c163d0696d5f2d121c50efc36bc63f3b870f410c156
          • MD5 SHA1 SHA512 SSDEEP

          _desktop.ini

          • Path F:\$RECYCLE.BIN\S-1-5-21-3625340254-1625357543-1797847221-1000\_desktop.ini
          • Size 8B
          • SHA256 7ee98acf971e32cae894381122352197a76e04e7689903e61cef63ad4f690736
          • MD5 SHA1 SHA512

          memory/5788-0-0x0000000000400000-0x0000000000448000-memory.dmp

          memory/5788-3-0x0000000000400000-0x0000000000448000-memory.dmp