Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/08/2026, 16:50

General

  • Target
    c36a3a0cc66b907a04bff58deb74e17ed59fa6fdb14b9e0b430294699fdee2fa.exe
  • Size 2.9MB
  • Sample260814-vcbw4sysby
  • SHA256 c36a3a0cc66b907a04bff58deb74e17ed59fa6fdb14b9e0b430294699fdee2fa
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 8 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Detect suspicious telegram bot 4 IoCs

    Detect suspicious telegram bot.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c36a3a0cc66b907a04bff58deb74e17ed59fa6fdb14b9e0b430294699fdee2fa.exe
    "C:\Users\Admin\AppData\Local\Temp\c36a3a0cc66b907a04bff58deb74e17ed59fa6fdb14b9e0b430294699fdee2fa.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1324
    • C:\Users\Admin\AppData\Local\Temp\CoreSystem.exe
      "C:\Users\Admin\AppData\Local\Temp\CoreSystem.exe" --monitor
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3340
  • C:\Users\Admin\AppData\Local\Temp\CoreSystem.exe
    "C:\Users\Admin\AppData\Local\Temp\\CoreSystem.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4420
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PowerShell\UserSession.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PowerShell\UserSession.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4516
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PowerShell\UserSession.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PowerShell\UserSession.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Users\Admin\AppData\Roaming\Microsoft\CLR_v4.0\SystemHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\CLR_v4.0\SystemHost.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2144
  • C:\Users\Admin\AppData\Roaming\Microsoft\CLR_v4.0\SystemHost.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\CLR_v4.0\SystemHost.exe"
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:448
    • C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\BackgroundTask.exe
      "C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\BackgroundTask.exe" --monitor
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3632
  • C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\BackgroundTask.exe
    "C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\BackgroundTask.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1392

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        09EC553619BC82A45E441B5D9BEB4136

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\09EC553619BC82A45E441B5D9BEB4136
        • Size 281B
        • SHA256 0c3ad19175b3a1886e3d851cb28203232f6a4175cc3420ca1e099046d4a2e50c
        • MD5 SHA1 SHA512 TLSH

        18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7
        • Size 314B
        • SHA256 2e2fb76871ce787c3b8eca039f3a18d8aa755f61025c8aad4fce7cf03420ba1b
        • MD5 SHA1 SHA512 TLSH

        223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
        • Size 2KB
        • SHA256 a260437fca4d9dd9aaf76ce01f26be0e0d1c5e56d21e38914bc05f6657f68aee
        • MD5 SHA1 SHA512 TLSH

        6EBD0D78D799E307DA6AD4F19004AA0E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6EBD0D78D799E307DA6AD4F19004AA0E
        • Size 1KB
        • SHA256 f091ecdd330bbd48c0c08539976342ef713ec936e7204df002127d6b6a5c40f8
        • MD5 SHA1 SHA512 TLSH

        D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44
        • Size 977B
        • SHA256 9b9892684065eec656347a9a8ec9486e4829777bd3d726d47430654baf307ac0
        • MD5 SHA1 SHA512 TLSH

        09EC553619BC82A45E441B5D9BEB4136

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\09EC553619BC82A45E441B5D9BEB4136
        • Size 488B
        • SHA256 4f8350d1005abaa3fe4003ca98078de9934f7fedead526c9da9637efe80e353c
        • MD5 SHA1 SHA512 TLSH

        18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\18159EBD3277736D0444419407768451_2FD781D15115165DD3192E4E42E088C7
        • Size 488B
        • SHA256 fba5f039c086640c97c4db8f8aa81859f54861f431e0f32b97a364b1556f11fb
        • MD5 SHA1 SHA512 TLSH

        223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
        • Size 450B
        • SHA256 8b1d351ab8fd78c4dc68880168ab63d3760a807afa8bb5deeb16aa1e74d5f33c
        • MD5 SHA1 SHA512 TLSH

        6EBD0D78D799E307DA6AD4F19004AA0E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6EBD0D78D799E307DA6AD4F19004AA0E
        • Size 238B
        • SHA256 a9fc83b7789249d6c79e4a65d5ad55e37402767876e54c732d411c700b5b44ae
        • MD5 SHA1 SHA512 TLSH

        D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\D0E1C4B6144E7ECAB3F020E4A19EFC29_A16793B4EA930C0E219244CEE32C9A44
        • Size 488B
        • SHA256 c92e11a2e022f4054d4d21763a3316c3b042961420d067ed8e7f4882295059fa
        • MD5 SHA1 SHA512 TLSH

        BackgroundTask.exe

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\BackgroundTask.exe
        • Size 3.4MB
        • SHA256 ab72004eee1338c8776e41bb67ccab4832b102fab70d5ad6cff733e2158aa998
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CoreSystem.exe

        • Path C:\Users\Admin\AppData\Local\Temp\CoreSystem.exe
        • Size 3.0MB
        • SHA256 1ccaff775aa367fc961b4bb8c2f841717cd942792d6eac9f6133c2c423eab737
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SystemHost.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\CLR_v4.0\SystemHost.exe
        • Size 3.3MB
        • SHA256 b39c8fe60af02aa77b8ad91300c7a85bba7ade011c7b9e906e5bd43361961d07
        • MD5 SHA1 SHA512 SSDEEP TLSH

        UserSession.exe

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PowerShell\UserSession.exe
        • Size 3.1MB
        • SHA256 757a5672f8c204c6af6216d7bbd6ecadd4e0cb2ff584c8b5176b6e3caedde1e3
        • MD5 SHA1 SHA512 SSDEEP TLSH