Overview

overview

10

Static

static

10

b4da11ce68...a2.exe

windows10-2004-x64

10

b4da11ce68...a2.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    146s
  • 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, 15:53

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General

  • Target
    b4da11ce685f6c9e0c4dfc2533557cc024b9dc013a1dbb906d8b99d4ca6ca1a2.exe
  • Size 45KB
  • Sample260712-tbpadacw8m
  • SHA256 b4da11ce685f6c9e0c4dfc2533557cc024b9dc013a1dbb906d8b99d4ca6ca1a2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • phimseo.com:80

  • phimseo.com:22

  • phimseo.com:8080

  • phimseo.com:8880

  • phimseo.com:2052

  • phimseo.com:2082

  • phimseo.com:2086

  • phimseo.com:2095

  • phimseo.com:443

  • phimseo.com:2053

  • phimseo.com:2083

  • phimseo.com:2087

  • phimseo.com:2096

  • phimseo.com:8443

  • www.phimseo.com:80

  • www.phimseo.com:22

  • www.phimseo.com:8080

  • www.phimseo.com:8880

  • www.phimseo.com:2052

  • www.phimseo.com:2082

Mutex

  • rS9cK9cFEKXP

Attributes
  • delay

    0

  • install

    true

  • install_file

    fqzoaz.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 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4da11ce685f6c9e0c4dfc2533557cc024b9dc013a1dbb906d8b99d4ca6ca1a2.exe
    "C:\Users\Admin\AppData\Local\Temp\b4da11ce685f6c9e0c4dfc2533557cc024b9dc013a1dbb906d8b99d4ca6ca1a2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1112
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "fqzoaz" /tr '"C:\Users\Admin\AppData\Roaming\fqzoaz.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5872
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "fqzoaz" /tr '"C:\Users\Admin\AppData\Roaming\fqzoaz.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5444
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAC82.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6096
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4664
      • C:\Users\Admin\AppData\Roaming\fqzoaz.exe
        "C:\Users\Admin\AppData\Roaming\fqzoaz.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3432
  • C:\Users\Admin\AppData\Roaming\fqzoaz.exe
    "C:\Users\Admin\AppData\Roaming\fqzoaz.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5484

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpAC82.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmpAC82.tmp.bat
        • Size 150B
        • SHA256 02a65a769f7133e1d188c71c41d6ee7d05d11f1dda2b4a7f3466bfc5e90fc23b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        fqzoaz.exe
        • Path C:\Users\Admin\AppData\Roaming\fqzoaz.exe
        • Size 45KB
        • SHA256 b4da11ce685f6c9e0c4dfc2533557cc024b9dc013a1dbb906d8b99d4ca6ca1a2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1112-0-0x0000000074372000-0x0000000074373000-memory.dmp
        Download

        memory/1112-1-0x0000000000610000-0x0000000000622000-memory.dmp
        Download

        memory/1112-2-0x0000000074360000-0x0000000074B1C000-memory.dmp
        Download

        memory/1112-3-0x0000000005160000-0x00000000051FC000-memory.dmp
        Download

        memory/1112-8-0x0000000074360000-0x0000000074B1C000-memory.dmp
        Download

        memory/5484-12-0x00000000741F0000-0x00000000749AC000-memory.dmp
        Download

        memory/5484-14-0x00000000741F0000-0x00000000749AC000-memory.dmp
        Download