Overview

overview

10

Static

static

10

7eafeedfc2...4f.exe

windows10-2004-x64

10

7eafeedfc2...4f.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    7s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260630-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/06/2026, 19:56

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General

  • Target
    7eafeedfc2a8f7fbac7131f9cc64789559ca5b72f94801d1f6ee070ac3fde94f.exe
  • Size 45KB
  • Sample260630-yn6gmsgw9w
  • SHA256 7eafeedfc2a8f7fbac7131f9cc64789559ca5b72f94801d1f6ee070ac3fde94f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • phimhentaivn.fun:80

  • phimhentaivn.fun:22

  • phimhentaivn.fun:8080

  • phimhentaivn.fun:8880

  • phimhentaivn.fun:2052

  • phimhentaivn.fun:2082

  • phimhentaivn.fun:2086

  • phimhentaivn.fun:2095

  • phimhentaivn.fun:443

  • phimhentaivn.fun:2053

  • phimhentaivn.fun:2083

  • phimhentaivn.fun:2087

  • phimhentaivn.fun:2096

  • phimhentaivn.fun:8443

  • www.phimhentaivn.fun:80

  • www.phimhentaivn.fun:22

  • www.phimhentaivn.fun:8080

  • www.phimhentaivn.fun:8880

  • www.phimhentaivn.fun:2052

  • www.phimhentaivn.fun:2082

Mutex

  • G1g4NGHhHFSx

Attributes
  • delay

    0

  • install

    true

  • install_file

    bxk91.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 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7eafeedfc2a8f7fbac7131f9cc64789559ca5b72f94801d1f6ee070ac3fde94f.exe
    "C:\Users\Admin\AppData\Local\Temp\7eafeedfc2a8f7fbac7131f9cc64789559ca5b72f94801d1f6ee070ac3fde94f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "bxk91" /tr '"C:\Users\Admin\AppData\Roaming\bxk91.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4892
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "bxk91" /tr '"C:\Users\Admin\AppData\Roaming\bxk91.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3508
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFFE7.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5544
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:6016
      • C:\Users\Admin\AppData\Roaming\bxk91.exe
        "C:\Users\Admin\AppData\Roaming\bxk91.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1068
  • C:\Users\Admin\AppData\Roaming\bxk91.exe
    "C:\Users\Admin\AppData\Roaming\bxk91.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4068

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpFFE7.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmpFFE7.tmp.bat
        • Size 149B
        • SHA256 8cae3490daf60d4b380cdd10e10eeb46c430a98594b26dcbc4819b9d709ac4dd
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        bxk91.exe
        • Path C:\Users\Admin\AppData\Roaming\bxk91.exe
        • Size 45KB
        • SHA256 7eafeedfc2a8f7fbac7131f9cc64789559ca5b72f94801d1f6ee070ac3fde94f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/4068-12-0x0000000074750000-0x0000000074F0C000-memory.dmp
        Download

        memory/4068-14-0x0000000074750000-0x0000000074F0C000-memory.dmp
        Download

        memory/4976-0-0x0000000074762000-0x0000000074763000-memory.dmp
        Download

        memory/4976-1-0x00000000005F0000-0x0000000000602000-memory.dmp
        Download

        memory/4976-2-0x0000000074750000-0x0000000074F0C000-memory.dmp
        Download

        memory/4976-3-0x0000000005140000-0x00000000051DC000-memory.dmp
        Download

        memory/4976-8-0x0000000074750000-0x0000000074F0C000-memory.dmp
        Download