Analysis

  • max time kernel
    6s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 11:42

General

  • Target
    aa4078b7aa63870f5d1f3d5dcb3f571ee45396e62e38bc20b209b46023e40570.exe
  • Size 45KB
  • Sample260710-nvdebsax2q
  • SHA256 aa4078b7aa63870f5d1f3d5dcb3f571ee45396e62e38bc20b209b46023e40570
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • lophimsexviet.com:80

  • lophimsexviet.com:22

  • lophimsexviet.com:8080

  • lophimsexviet.com:8880

  • lophimsexviet.com:2052

  • lophimsexviet.com:2082

  • lophimsexviet.com:2086

  • lophimsexviet.com:2095

  • lophimsexviet.com:443

  • lophimsexviet.com:2053

  • lophimsexviet.com:2083

  • lophimsexviet.com:2087

  • lophimsexviet.com:2096

  • lophimsexviet.com:8443

  • www.lophimsexviet.com:80

  • www.lophimsexviet.com:22

  • www.lophimsexviet.com:8080

  • www.lophimsexviet.com:8880

  • www.lophimsexviet.com:2052

  • www.lophimsexviet.com:2082

Mutex
  • DFu0wj3vkypz

Attributes
  • delay

    0

  • install

    true

  • install_file

    ieezvbl.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa4078b7aa63870f5d1f3d5dcb3f571ee45396e62e38bc20b209b46023e40570.exe
    "C:\Users\Admin\AppData\Local\Temp\aa4078b7aa63870f5d1f3d5dcb3f571ee45396e62e38bc20b209b46023e40570.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ieezvbl" /tr '"C:\Users\Admin\AppData\Roaming\ieezvbl.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2484
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "ieezvbl" /tr '"C:\Users\Admin\AppData\Roaming\ieezvbl.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4556
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9958.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2972
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4460
      • C:\Users\Admin\AppData\Roaming\ieezvbl.exe
        "C:\Users\Admin\AppData\Roaming\ieezvbl.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2320
  • C:\Users\Admin\AppData\Roaming\ieezvbl.exe
    "C:\Users\Admin\AppData\Roaming\ieezvbl.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4512

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp9958.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp9958.tmp.bat
        • Size 151B
        • SHA256 1924963464003a744a58e13d30fd129f5ffc652717fa2e38d7f9c75d13805c1b
        • MD5 SHA1 SHA512 TLSH

        ieezvbl.exe

        • Path C:\Users\Admin\AppData\Roaming\ieezvbl.exe
        • Size 45KB
        • SHA256 aa4078b7aa63870f5d1f3d5dcb3f571ee45396e62e38bc20b209b46023e40570
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2464-0-0x0000000074DD2000-0x0000000074DD3000-memory.dmp

        memory/2464-1-0x0000000000820000-0x0000000000832000-memory.dmp

        memory/2464-2-0x0000000074DC0000-0x000000007557C000-memory.dmp

        memory/2464-3-0x0000000005340000-0x00000000053DC000-memory.dmp

        memory/2464-8-0x0000000074DC0000-0x000000007557C000-memory.dmp

        memory/4512-12-0x0000000074C50000-0x000000007540C000-memory.dmp

        memory/4512-14-0x0000000074C50000-0x000000007540C000-memory.dmp