Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/08/2026, 09:54

General

  • Target
    2026-08-15_012044a46d3f586996962fb133d6cd53_bjlog_coinminer_elex_wannacry.exe
  • Size 24.9MB
  • Sample260815-lxcjpsfa95
  • SHA256 447ca73a7a8e8321d426ce373a4b12b91b381cb2f53f45d474afc4d125041925
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Gh0st RAT payload 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Drops file in System32 directory 6 IoCs
  • UPX packed file 5 IoCs

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

  • Program crash 3 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-15_012044a46d3f586996962fb133d6cd53_bjlog_coinminer_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-15_012044a46d3f586996962fb133d6cd53_bjlog_coinminer_elex_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4624
    • \??\c:\users\admin\appdata\local\opcxdhfvgg
      "C:\Users\Admin\AppData\Local\Temp\2026-08-15_012044a46d3f586996962fb133d6cd53_bjlog_coinminer_elex_wannacry.exe" a -sc:\users\admin\appdata\local\temp\2026-08-15_012044a46d3f586996962fb133d6cd53_bjlog_coinminer_elex_wannacry.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4596
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs
    1⤵
      PID:1040
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k netsvcs -s fastuserswitchingcompatibility
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:932
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 932 -s 1032
        2⤵
        • Program crash
        PID:1068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 932 -ip 932
      1⤵
        PID:4640
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\SysWOW64\svchost.exe -k netsvcs -s fastuserswitchingcompatibility
        1⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2808
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 936
          2⤵
          • Program crash
          PID:256
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 628 -p 2808 -ip 2808
        1⤵
          PID:5744
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\SysWOW64\svchost.exe -k netsvcs -s fastuserswitchingcompatibility
          1⤵
          • Loads dropped DLL
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4984
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 984
            2⤵
            • Program crash
            PID:3788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 628 -p 4984 -ip 4984
          1⤵
            PID:4364

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                opcxdhfvgg

                • Path C:\Users\Admin\AppData\Local\opcxdhfvgg
                • Size 24.9MB
                • SHA256 5e8b7d0bd1adfae3a2ef7189d4db1bdb8d32895e775d25365980a6fff24c6120
                • MD5 SHA1 SHA512 SSDEEP TLSH

                svchost.exe.txt

                • Path C:\Windows\SysWOW64\svchost.exe.txt
                • Size 204B
                • SHA256 68c3a3b400057b2afbd8736c981a9f6e41a50fed586cd291110dcfd6ea36e27d
                • MD5 SHA1 SHA512 TLSH

                svchost.exe.txt

                • Path C:\Windows\SysWOW64\svchost.exe.txt
                • Size 306B
                • SHA256 29ba5f24f3879d354f3ff38df5c03533d6779a38caae6095b5f6b6e645d899f6
                • MD5 SHA1 SHA512 TLSH

                ylbsh.cc3

                • Path \??\c:\programdata\application data\storm\update\%sessionname%\ylbsh.cc3
                • Size 22.0MB
                • SHA256 a56e42055fe37d57bd0a92761fcad50fc115985f2ab40419c44a0ae55d2524e4
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/932-13-0x00000000015C0000-0x00000000015C1000-memory.dmp

                memory/932-15-0x0000000020000000-0x0000000020027000-memory.dmp

                memory/2808-17-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

                memory/2808-20-0x0000000020000000-0x0000000020027000-memory.dmp

                memory/4596-12-0x0000000000400000-0x0000000000436000-memory.dmp

                memory/4596-5-0x0000000000400000-0x0000000000436000-memory.dmp

                memory/4624-0-0x0000000000400000-0x0000000000436000-memory.dmp

                memory/4624-6-0x0000000000400000-0x0000000000436000-memory.dmp

                memory/4984-22-0x0000000002970000-0x0000000002971000-memory.dmp

                memory/4984-25-0x0000000020000000-0x0000000020027000-memory.dmp