Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/07/2026, 17:21

General

  • Target
    da8fb17dde724e15a984f006ebcd89e042734dfa0f1316153c6b313037356f19.exe
  • Size 45KB
  • Sample260715-vxethadt6x
  • SHA256 da8fb17dde724e15a984f006ebcd89e042734dfa0f1316153c6b313037356f19
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • fimsexnhatban.com:80

  • fimsexnhatban.com:22

  • fimsexnhatban.com:8080

  • fimsexnhatban.com:8880

  • fimsexnhatban.com:2052

  • fimsexnhatban.com:2082

  • fimsexnhatban.com:2086

  • fimsexnhatban.com:2095

  • fimsexnhatban.com:443

  • fimsexnhatban.com:2053

  • fimsexnhatban.com:2083

  • fimsexnhatban.com:2087

  • fimsexnhatban.com:2096

  • fimsexnhatban.com:8443

  • www.fimsexnhatban.com:80

  • www.fimsexnhatban.com:22

  • www.fimsexnhatban.com:8080

  • www.fimsexnhatban.com:8880

  • www.fimsexnhatban.com:2052

  • www.fimsexnhatban.com:2082

Mutex
  • usIvZay2ASir

Attributes
  • delay

    0

  • install

    true

  • install_file

    xi358.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 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\da8fb17dde724e15a984f006ebcd89e042734dfa0f1316153c6b313037356f19.exe
    "C:\Users\Admin\AppData\Local\Temp\da8fb17dde724e15a984f006ebcd89e042734dfa0f1316153c6b313037356f19.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "xi358" /tr '"C:\Users\Admin\AppData\Roaming\xi358.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1340
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "xi358" /tr '"C:\Users\Admin\AppData\Roaming\xi358.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3996
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpED44.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5520
      • C:\Users\Admin\AppData\Roaming\xi358.exe
        "C:\Users\Admin\AppData\Roaming\xi358.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3984
  • C:\Users\Admin\AppData\Roaming\xi358.exe
    "C:\Users\Admin\AppData\Roaming\xi358.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3760

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpED44.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpED44.tmp.bat
        • Size 149B
        • SHA256 7a2cb413349505491aa2b018ca1a1705eefb394db39948560d01d59ee0d47116
        • MD5 SHA1 SHA512 TLSH

        xi358.exe

        • Path C:\Users\Admin\AppData\Roaming\xi358.exe
        • Size 45KB
        • SHA256 da8fb17dde724e15a984f006ebcd89e042734dfa0f1316153c6b313037356f19
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3064-0-0x0000000074E22000-0x0000000074E23000-memory.dmp

        memory/3064-1-0x00000000000D0000-0x00000000000E2000-memory.dmp

        memory/3064-2-0x0000000074E10000-0x00000000755CC000-memory.dmp

        memory/3064-3-0x0000000004BC0000-0x0000000004C5C000-memory.dmp

        memory/3064-9-0x0000000074E10000-0x00000000755CC000-memory.dmp

        memory/3760-12-0x0000000074E10000-0x00000000755CC000-memory.dmp

        memory/3760-14-0x0000000074E10000-0x00000000755CC000-memory.dmp