Analysis

  • max time kernel
    148s
  • 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
    31/08/2026, 14:06

General

  • Target
    e2336a283db5c9c25c92f140b3dc61a38fa8c4e6e041f2ae254c3b1e60832649.exe
  • Size 45KB
  • Sample260831-reqw9swwbw
  • SHA256 e2336a283db5c9c25c92f140b3dc61a38fa8c4e6e041f2ae254c3b1e60832649
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexvietdam.blog:80

  • sexvietdam.blog:22

  • sexvietdam.blog:8080

  • sexvietdam.blog:8880

  • sexvietdam.blog:2052

  • sexvietdam.blog:2082

  • sexvietdam.blog:2086

  • sexvietdam.blog:2095

  • sexvietdam.blog:443

  • sexvietdam.blog:2053

  • sexvietdam.blog:2083

  • sexvietdam.blog:2087

  • sexvietdam.blog:2096

  • sexvietdam.blog:8443

  • www.sexvietdam.blog:80

  • www.sexvietdam.blog:22

  • www.sexvietdam.blog:8080

  • www.sexvietdam.blog:8880

  • www.sexvietdam.blog:2052

  • www.sexvietdam.blog:2082

Mutex
  • vYtUPKqjGNeN

Attributes
  • delay

    0

  • install

    true

  • install_file

    7b6x.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
  • Outbound SSH connection to public host 2 TTPs 4 IoCs

    SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e2336a283db5c9c25c92f140b3dc61a38fa8c4e6e041f2ae254c3b1e60832649.exe
    "C:\Users\Admin\AppData\Local\Temp\e2336a283db5c9c25c92f140b3dc61a38fa8c4e6e041f2ae254c3b1e60832649.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5316
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "7b6x" /tr '"C:\Users\Admin\AppData\Roaming\7b6x.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:788
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "7b6x" /tr '"C:\Users\Admin\AppData\Roaming\7b6x.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5732
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5058.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5912
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3200
      • C:\Users\Admin\AppData\Roaming\7b6x.exe
        "C:\Users\Admin\AppData\Roaming\7b6x.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3828
  • C:\Users\Admin\AppData\Roaming\7b6x.exe
    "C:\Users\Admin\AppData\Roaming\7b6x.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1308

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp5058.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp5058.tmp.bat
        • Size 148B
        • SHA256 f67849de42b21f0863233c57d18e5328d90a61739786f4d56f613441cb2ca863
        • MD5 SHA1 SHA512 TLSH

        7b6x.exe

        • Path C:\Users\Admin\AppData\Roaming\7b6x.exe
        • Size 45KB
        • SHA256 e2336a283db5c9c25c92f140b3dc61a38fa8c4e6e041f2ae254c3b1e60832649
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1308-12-0x0000000074F20000-0x00000000756DC000-memory.dmp

        memory/1308-14-0x0000000074F20000-0x00000000756DC000-memory.dmp

        memory/5316-0-0x0000000075132000-0x0000000075133000-memory.dmp

        memory/5316-1-0x0000000000BA0000-0x0000000000BB2000-memory.dmp

        memory/5316-2-0x0000000075120000-0x00000000758DC000-memory.dmp

        memory/5316-3-0x0000000005650000-0x00000000056EC000-memory.dmp

        memory/5316-8-0x0000000075120000-0x00000000758DC000-memory.dmp