Analysis

  • max time kernel
    6s
  • max time network
    147s
  • 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, 09:59

General

  • Target
    ee72f33a1b1bf81ff2b0ac8d341fb30309e37433adc20900d85d9e22956c1f5f.exe
  • Size 45KB
  • Sample260701-l1dk6sa18m
  • SHA256 ee72f33a1b1bf81ff2b0ac8d341fb30309e37433adc20900d85d9e22956c1f5f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • xxxtop.net:80

  • xxxtop.net:22

  • xxxtop.net:8080

  • xxxtop.net:8880

  • xxxtop.net:2052

  • xxxtop.net:2082

  • xxxtop.net:2086

  • xxxtop.net:2095

  • xxxtop.net:443

  • xxxtop.net:2053

  • xxxtop.net:2083

  • xxxtop.net:2087

  • xxxtop.net:2096

  • xxxtop.net:8443

  • www.xxxtop.net:80

  • www.xxxtop.net:22

  • www.xxxtop.net:8080

  • www.xxxtop.net:8880

  • www.xxxtop.net:2052

  • www.xxxtop.net:2082

Mutex
  • tnoiJeW54fji

Attributes
  • delay

    0

  • install

    true

  • install_file

    dffc.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 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ee72f33a1b1bf81ff2b0ac8d341fb30309e37433adc20900d85d9e22956c1f5f.exe
    "C:\Users\Admin\AppData\Local\Temp\ee72f33a1b1bf81ff2b0ac8d341fb30309e37433adc20900d85d9e22956c1f5f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5236
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "dffc" /tr '"C:\Users\Admin\AppData\Roaming\dffc.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "dffc" /tr '"C:\Users\Admin\AppData\Roaming\dffc.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5504
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB7B2.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6048
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5264
      • C:\Users\Admin\AppData\Roaming\dffc.exe
        "C:\Users\Admin\AppData\Roaming\dffc.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3512
  • C:\Users\Admin\AppData\Roaming\dffc.exe
    "C:\Users\Admin\AppData\Roaming\dffc.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5916
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:3640
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
          PID:5840
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
        1⤵
          PID:3192
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:1924

          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 607B
                • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
                • MD5 SHA1 SHA512 TLSH

                tmpB7B2.tmp.bat

                • Path C:\Users\Admin\AppData\Local\Temp\tmpB7B2.tmp.bat
                • Size 148B
                • SHA256 eb1493426d71d243477b48437b78c33c7c7e75b0cac000d913482ed06bdd068c
                • MD5 SHA1 SHA512 TLSH

                dffc.exe

                • Path C:\Users\Admin\AppData\Roaming\dffc.exe
                • Size 45KB
                • SHA256 ee72f33a1b1bf81ff2b0ac8d341fb30309e37433adc20900d85d9e22956c1f5f
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/3192-49-0x0000019796DD0000-0x0000019796ED0000-memory.dmp

                memory/3192-81-0x0000019797150000-0x0000019797170000-memory.dmp

                memory/3192-48-0x0000019786970000-0x0000019786990000-memory.dmp

                memory/3192-36-0x0000019783130000-0x0000019783230000-memory.dmp

                memory/3192-60-0x0000019786BD0000-0x0000019786BF0000-memory.dmp

                memory/3192-35-0x0000019783130000-0x0000019783230000-memory.dmp

                memory/5236-3-0x0000000005420000-0x00000000054BC000-memory.dmp

                memory/5236-9-0x0000000074E00000-0x00000000755BC000-memory.dmp

                memory/5236-2-0x0000000074E00000-0x00000000755BC000-memory.dmp

                memory/5236-1-0x0000000000920000-0x0000000000932000-memory.dmp

                memory/5236-0-0x0000000074E12000-0x0000000074E13000-memory.dmp

                memory/5916-12-0x0000000074E00000-0x00000000755BC000-memory.dmp

                memory/5916-14-0x0000000074E00000-0x00000000755BC000-memory.dmp