Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/08/2026, 03:10

General

  • Target
    2026-08-01_6b0d0ac3a720f2d244e0208fa19d40ad_cryptowall_elex.exe
  • Size 121KB
  • Sample260801-dpfbmadl8x
  • SHA256 76a3f440982a3796379a3100501477ac87fda17f356e5beecb28798b4b222052
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detects ransomware indicator 14 IoCs
  • Creates a file in the Startup directory 1 TTPs 3 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-01_6b0d0ac3a720f2d244e0208fa19d40ad_cryptowall_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_6b0d0ac3a720f2d244e0208fa19d40ad_cryptowall_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4588
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\syswow64\explorer.exe"
      2⤵
      • Creates a file in the Startup directory
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4840
      • C:\Windows\SysWOW64\svchost.exe
        -k netsvcs
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1112
  • C:\Users\Admin\AppData\Roaming\4a591ba.exe
    C:\Users\Admin\AppData\Roaming\4a591ba.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4988
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\syswow64\explorer.exe"
      2⤵
      • Creates a file in the Startup directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4648
      • C:\Windows\SysWOW64\svchost.exe
        -k netsvcs
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5964
  • C:\4a591ba\4a591ba.exe
    C:\4a591ba\4a591ba.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\syswow64\explorer.exe"
      2⤵
      • Creates a file in the Startup directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\SysWOW64\svchost.exe
        -k netsvcs
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2452

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        4a591ba.exe

        • Path C:\Users\Admin\AppData\Roaming\4a591ba.exe
        • Size 121KB
        • SHA256 76a3f440982a3796379a3100501477ac87fda17f356e5beecb28798b4b222052
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1112-27-0x00000000012D0000-0x00000000012F3000-memory.dmp

        memory/1112-25-0x00000000012D0000-0x00000000012F3000-memory.dmp

        memory/2452-22-0x0000000000650000-0x0000000000673000-memory.dmp

        memory/2452-23-0x0000000000650000-0x0000000000673000-memory.dmp

        memory/4648-10-0x0000000000830000-0x0000000000853000-memory.dmp

        memory/4648-18-0x0000000000830000-0x0000000000853000-memory.dmp

        memory/4648-8-0x0000000000830000-0x0000000000853000-memory.dmp

        memory/4840-0-0x0000000000B50000-0x0000000000B73000-memory.dmp

        memory/4840-26-0x0000000000B50000-0x0000000000B73000-memory.dmp

        memory/4840-1-0x0000000000B50000-0x0000000000B73000-memory.dmp

        memory/4928-12-0x0000000000CC0000-0x0000000000CE3000-memory.dmp

        memory/4928-24-0x0000000000CC0000-0x0000000000CE3000-memory.dmp

        memory/5964-16-0x00000000009D0000-0x00000000009F3000-memory.dmp