Overview

overview

10

Static

static

10

136cf0b01d...b7.exe

windows10-2004-x64

10

136cf0b01d...b7.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    58s
  • max time network
    63s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/07/2026, 19:54

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General

  • Target
    136cf0b01dbcb5e51002a2f04bc72fad5c75108c9286f7a40a1815990b73dbb7.exe
  • Size 45KB
  • Sample260711-ym2gash18m
  • SHA256 136cf0b01dbcb5e51002a2f04bc72fad5c75108c9286f7a40a1815990b73dbb7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • mephimsexviet.com:80

  • mephimsexviet.com:22

  • mephimsexviet.com:8080

  • mephimsexviet.com:8880

  • mephimsexviet.com:2052

  • mephimsexviet.com:2082

  • mephimsexviet.com:2086

  • mephimsexviet.com:2095

  • mephimsexviet.com:443

  • mephimsexviet.com:2053

  • mephimsexviet.com:2083

  • mephimsexviet.com:2087

  • mephimsexviet.com:2096

  • mephimsexviet.com:8443

  • www.mephimsexviet.com:80

  • www.mephimsexviet.com:22

  • www.mephimsexviet.com:8080

  • www.mephimsexviet.com:8880

  • www.mephimsexviet.com:2052

  • www.mephimsexviet.com:2082

Mutex

  • iNV6ayH5P5Mr

Attributes
  • delay

    0

  • install

    true

  • install_file

    nbiso.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
  • System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\136cf0b01dbcb5e51002a2f04bc72fad5c75108c9286f7a40a1815990b73dbb7.exe
    "C:\Users\Admin\AppData\Local\Temp\136cf0b01dbcb5e51002a2f04bc72fad5c75108c9286f7a40a1815990b73dbb7.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:5900
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nbiso" /tr '"C:\Users\Admin\AppData\Roaming\nbiso.exe"' & exit
      2⤵
        PID:3672
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "nbiso" /tr '"C:\Users\Admin\AppData\Roaming\nbiso.exe"'
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:3136
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4FBC.tmp.bat""
        2⤵
          PID:4304
          • C:\Windows\SysWOW64\timeout.exe
            timeout 3
            3⤵
            • Delays execution with timeout.exe
            PID:3200
          • C:\Users\Admin\AppData\Roaming\nbiso.exe
            "C:\Users\Admin\AppData\Roaming\nbiso.exe"
            3⤵
              PID:5084
        • C:\Users\Admin\AppData\Roaming\nbiso.exe
          "C:\Users\Admin\AppData\Roaming\nbiso.exe"
          1⤵
            PID:4716

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                tmp4FBC.tmp.bat
                • Path C:\Users\Admin\AppData\Local\Temp\tmp4FBC.tmp.bat
                • Size 149B
                • SHA256 9a4bf29699670650715be84585ca2e82dc58a0e05d1b15158410716fe13fe928
                • MD5 SHA1 SHA512 TLSH
                Submit Download

                nbiso.exe
                • Path C:\Users\Admin\AppData\Roaming\nbiso.exe
                • Size 45KB
                • SHA256 136cf0b01dbcb5e51002a2f04bc72fad5c75108c9286f7a40a1815990b73dbb7
                • MD5 SHA1 SHA512 SSDEEP TLSH
                Submit Download

                memory/4716-12-0x0000000074A10000-0x00000000751CC000-memory.dmp
                Download

                memory/4716-14-0x0000000074A10000-0x00000000751CC000-memory.dmp
                Download

                memory/5900-0-0x0000000074B92000-0x0000000074B93000-memory.dmp
                Download

                memory/5900-1-0x0000000000B30000-0x0000000000B42000-memory.dmp
                Download

                memory/5900-2-0x0000000074B80000-0x000000007533C000-memory.dmp
                Download

                memory/5900-3-0x0000000005710000-0x00000000057AC000-memory.dmp
                Download

                memory/5900-8-0x0000000074B80000-0x000000007533C000-memory.dmp
                Download