Overview

overview

10

Static

static

10

dda6112106...44.exe

windows10-2004-x64

10

dda6112106...44.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 15:47

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General

  • Target
    dda6112106f603ac8e2e08bc2634c7814ade4e1985e910450fffc676d6eba044.exe
  • Size 45KB
  • Sample260701-s8gfcsbt9x
  • SHA256 dda6112106f603ac8e2e08bc2634c7814ade4e1985e910450fffc676d6eba044
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • madcityservers.com:80

  • madcityservers.com:22

  • madcityservers.com:8080

  • madcityservers.com:8880

  • madcityservers.com:2052

  • madcityservers.com:2082

  • madcityservers.com:2086

  • madcityservers.com:2095

  • madcityservers.com:443

  • madcityservers.com:2053

  • madcityservers.com:2083

  • madcityservers.com:2087

  • madcityservers.com:2096

  • madcityservers.com:8443

  • www.madcityservers.com:80

  • www.madcityservers.com:22

  • www.madcityservers.com:8080

  • www.madcityservers.com:8880

  • www.madcityservers.com:2052

  • www.madcityservers.com:2082

Mutex

  • IRCwjw2EJPKh

Attributes
  • delay

    0

  • install

    true

  • install_file

    yjc78e.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 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dda6112106f603ac8e2e08bc2634c7814ade4e1985e910450fffc676d6eba044.exe
    "C:\Users\Admin\AppData\Local\Temp\dda6112106f603ac8e2e08bc2634c7814ade4e1985e910450fffc676d6eba044.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3424
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "yjc78e" /tr '"C:\Users\Admin\AppData\Roaming\yjc78e.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "yjc78e" /tr '"C:\Users\Admin\AppData\Roaming\yjc78e.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2392
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp641F.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5476
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2948
      • C:\Users\Admin\AppData\Roaming\yjc78e.exe
        "C:\Users\Admin\AppData\Roaming\yjc78e.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5088
  • C:\Users\Admin\AppData\Roaming\yjc78e.exe
    "C:\Users\Admin\AppData\Roaming\yjc78e.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1864
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:5260
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
        PID:4536
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
            PID:2156
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
            PID:3220
          • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
            "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
            1⤵
              PID:5396

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  prep_Activatable Class_Hermes_perf.cache
                  • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
                  • Size 595B
                  • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  tmp641F.tmp.bat
                  • Path C:\Users\Admin\AppData\Local\Temp\tmp641F.tmp.bat
                  • Size 150B
                  • SHA256 2be59d7d7c91512dea7be1fe1a5ae9ceea80b9fd1cb92fcffa54f40fb890e5f3
                  • MD5 SHA1 SHA512 TLSH
                  Submit Download

                  yjc78e.exe
                  • Path C:\Users\Admin\AppData\Roaming\yjc78e.exe
                  • Size 45KB
                  • SHA256 dda6112106f603ac8e2e08bc2634c7814ade4e1985e910450fffc676d6eba044
                  • MD5 SHA1 SHA512 SSDEEP TLSH
                  Submit Download

                  memory/1864-12-0x0000000074892000-0x0000000074893000-memory.dmp
                  Download

                  memory/3220-36-0x0000023903D80000-0x0000023903DA0000-memory.dmp
                  Download

                  memory/3220-16-0x00000239001E0000-0x00000239002E0000-memory.dmp
                  Download

                  memory/3220-77-0x0000023914200000-0x0000023914220000-memory.dmp
                  Download

                  memory/3220-33-0x0000023913EA0000-0x0000023913FA0000-memory.dmp
                  Download

                  memory/3220-32-0x0000023903A40000-0x0000023903A60000-memory.dmp
                  Download

                  memory/3220-17-0x00000239001E0000-0x00000239002E0000-memory.dmp
                  Download

                  memory/3220-15-0x00000239001E0000-0x00000239002E0000-memory.dmp
                  Download

                  memory/3424-8-0x0000000075050000-0x000000007580C000-memory.dmp
                  Download

                  memory/3424-3-0x0000000004A00000-0x0000000004A9C000-memory.dmp
                  Download

                  memory/3424-2-0x0000000075050000-0x000000007580C000-memory.dmp
                  Download

                  memory/3424-1-0x0000000000050000-0x0000000000062000-memory.dmp
                  Download

                  memory/3424-0-0x0000000075062000-0x0000000075063000-memory.dmp
                  Download