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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/03/2024, 18:53

General

  • Target

    c1599b70e4145735dd29e4ca674619b2.exe

  • Size

    228KB

  • MD5

    c1599b70e4145735dd29e4ca674619b2

  • SHA1

    4ef50fe0e43b28d29e59e00a9a06860c1314a1f1

  • SHA256

    b2a3e747888965b0379759c9619f8d283678b32fdd0de6f3503a022b57f78d3d

  • SHA512

    a6bf37915f297b3ab163a6c4ed3233cbf347bbf16d42bd25c1bbe32f8be4c5c191f7f9dcd5900eaf3f9c6919d21ff1e4bcc2d2ad86c9e1ee0d52d848eea374b1

  • SSDEEP

    3072:1c52nLeK1ZmLIgI4TDsvaw3V8n6T+C8dwcEgzlJY8No1LnOIQkioYxiTT3:G52l1ZOZIYDArzPGEgzlJY8Kn0QTT3

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1599b70e4145735dd29e4ca674619b2.exe
    "C:\Users\Admin\AppData\Local\Temp\c1599b70e4145735dd29e4ca674619b2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3656
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 492
      2⤵
      • Program crash
      PID:4988
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 3656 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\c1599b70e4145735dd29e4ca674619b2.exe" & start C:\Users\Admin\AppData\Local\COXNUU~1.EXE -f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1096
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 3656
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4768
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:3840
      • C:\Users\Admin\AppData\Local\coxnuuyczh.exe
        C:\Users\Admin\AppData\Local\COXNUU~1.EXE -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1732
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 504
          4⤵
          • Program crash
          PID:4548
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3656 -ip 3656
    1⤵
      PID:2568
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1732 -ip 1732
      1⤵
        PID:4752

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\coxnuuyczh.exe

        Filesize

        228KB

        MD5

        c1599b70e4145735dd29e4ca674619b2

        SHA1

        4ef50fe0e43b28d29e59e00a9a06860c1314a1f1

        SHA256

        b2a3e747888965b0379759c9619f8d283678b32fdd0de6f3503a022b57f78d3d

        SHA512

        a6bf37915f297b3ab163a6c4ed3233cbf347bbf16d42bd25c1bbe32f8be4c5c191f7f9dcd5900eaf3f9c6919d21ff1e4bcc2d2ad86c9e1ee0d52d848eea374b1

      • memory/1732-15-0x00000000007C0000-0x00000000007C2000-memory.dmp

        Filesize

        8KB

      • memory/1732-20-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/1732-29-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/1732-27-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/1732-8-0x00000000007C0000-0x00000000007C2000-memory.dmp

        Filesize

        8KB

      • memory/1732-11-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/1732-25-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/1732-16-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/1732-13-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/1732-18-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/1732-22-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/3656-0-0x0000000000570000-0x0000000000572000-memory.dmp

        Filesize

        8KB

      • memory/3656-2-0x0000000000560000-0x0000000000562000-memory.dmp

        Filesize

        8KB

      • memory/3656-1-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB

      • memory/3656-4-0x0000000001000000-0x00000000010C9000-memory.dmp

        Filesize

        804KB