Overview

overview

10

Static

static

10

643e88cb51...20.exe

windows10-2004-x64

10

643e88cb51...20.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • 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
    12/07/2026, 03:18

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General

  • Target
    643e88cb515518e0380605a8feb3b92193576e6fb5edda4bb18111fd79c19c20.exe
  • Size 45KB
  • Sample260712-dtrkfscv3p
  • SHA256 643e88cb515518e0380605a8feb3b92193576e6fb5edda4bb18111fd79c19c20
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • asentv.tv:80

  • asentv.tv:22

  • asentv.tv:8080

  • asentv.tv:8880

  • asentv.tv:2052

  • asentv.tv:2082

  • asentv.tv:2086

  • asentv.tv:2095

  • asentv.tv:443

  • asentv.tv:2053

  • asentv.tv:2083

  • asentv.tv:2087

  • asentv.tv:2096

  • asentv.tv:8443

  • www.asentv.tv:80

  • www.asentv.tv:22

  • www.asentv.tv:8080

  • www.asentv.tv:8880

  • www.asentv.tv:2052

  • www.asentv.tv:2082

Mutex

  • dbFfv9SEM8pN

Attributes
  • delay

    0

  • install

    true

  • install_file

    nbr3n.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • 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.

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

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\643e88cb515518e0380605a8feb3b92193576e6fb5edda4bb18111fd79c19c20.exe
    "C:\Users\Admin\AppData\Local\Temp\643e88cb515518e0380605a8feb3b92193576e6fb5edda4bb18111fd79c19c20.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1772
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nbr3n" /tr '"C:\Users\Admin\AppData\Roaming\nbr3n.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2152
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "nbr3n" /tr '"C:\Users\Admin\AppData\Roaming\nbr3n.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3336
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8EF.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4976
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1796
      • C:\Users\Admin\AppData\Roaming\nbr3n.exe
        "C:\Users\Admin\AppData\Roaming\nbr3n.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5700
  • C:\Users\Admin\AppData\Roaming\nbr3n.exe
    "C:\Users\Admin\AppData\Roaming\nbr3n.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4260

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp8EF.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp8EF.tmp.bat
        • Size 148B
        • SHA256 524b99ecc567dded99a2e90a936ef0a72e034f0ff0f3804675d225f1371e4b72
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        nbr3n.exe
        • Path C:\Users\Admin\AppData\Roaming\nbr3n.exe
        • Size 45KB
        • SHA256 643e88cb515518e0380605a8feb3b92193576e6fb5edda4bb18111fd79c19c20
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1772-0-0x00000000744C2000-0x00000000744C3000-memory.dmp
        Download

        memory/1772-1-0x0000000000E60000-0x0000000000E72000-memory.dmp
        Download

        memory/1772-2-0x00000000744B0000-0x0000000074C6C000-memory.dmp
        Download

        memory/1772-3-0x00000000059D0000-0x0000000005A6C000-memory.dmp
        Download

        memory/1772-9-0x00000000744B0000-0x0000000074C6C000-memory.dmp
        Download

        memory/4260-12-0x00000000744A0000-0x0000000074C5C000-memory.dmp
        Download

        memory/4260-14-0x00000000744A0000-0x0000000074C5C000-memory.dmp
        Download