Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 04:33

General

  • Target
    dist.exe
  • Size 178KB
  • Sample260808-e6j7kszgkd
  • SHA256 c585b88cefd9c0e0c0467f7b02876dd4aff5c3d9f706f9dd1bbefdb033786065
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • antarctida_stealer

Mutex
  • Z8NWDG0EHE3AD5MGCED4ML6JP40KZ2CRRFJSVD9QB7URP8BNB9IVISPZ67VKL9DV

Attributes
  • Wifi

    true

  • anti_debug

    false

  • anti_vm

    false

  • bot_token

    MTUzNTQ1ODEzNDI5NzAxODM3OQ.Gj2cgK.UaDl1yW77G-GLwemknuTxAyjhM5p2xVeXBdc5k

  • browsers

    true

  • chat_id

    1489351764561100944

  • crypto

    true

  • ftp

    false

  • gaming

    true

  • grabber

    true

  • hide

    false

  • hosts

    false

  • mail

    true

  • melt

    false

  • messengers

    true

  • mutex

    Z8NWDG0EHE3AD5MGCED4ML6JP40KZ2CRRFJSVD9QB7URP8BNB9IVISPZ67VKL9DV

  • netstat

    true

  • process_dump

    false

  • product_key

    true

  • screenshot

    true

  • sockets

    true

  • startup

    true

  • sys_info

    true

  • vpn

    true

  • watchdog

    false

  • webcam

    true

Signatures

  • Family: AntarctidaStealer

    AntarctidaStealer is an Windows stealer written in C#.

  • Executes dropped EXE 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 TTPs 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • System Network Connections Discovery 1 TTPs 1 IoCs

    Attempt to get a listing of network connections.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dist.exe
    "C:\Users\Admin\AppData\Local\Temp\dist.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    PID:5252
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "JDJjTtzLnVkU" /tr "\"C:\Users\Admin\AppData\Local\PfAXyAjVub1V\rEE7DcHmgvuz.exe\"" /sc onlogon /rl highest /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1252
    • C:\Windows\SysWOW64\netsh.exe
      "netsh" wlan show profiles
      2⤵
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Wi-Fi Discovery
      PID:3336
    • C:\Windows\SysWOW64\netstat.exe
      "netstat.exe" -ano
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Connections Discovery
      • Gathers network information
      • Suspicious use of AdjustPrivilegeToken
      PID:4504
  • C:\Users\Admin\AppData\Local\PfAXyAjVub1V\rEE7DcHmgvuz.exe
    "C:\Users\Admin\AppData\Local\PfAXyAjVub1V\rEE7DcHmgvuz.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2668

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        rEE7DcHmgvuz.exe

        • Path C:\Users\Admin\AppData\Local\PfAXyAjVub1V\rEE7DcHmgvuz.exe
        • Size 178KB
        • SHA256 c585b88cefd9c0e0c0467f7b02876dd4aff5c3d9f706f9dd1bbefdb033786065
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2668-32-0x00000000743D0000-0x0000000074B8C000-memory.dmp

        memory/2668-10-0x00000000743D0000-0x0000000074B8C000-memory.dmp

        memory/5252-3-0x0000000001290000-0x00000000012A2000-memory.dmp

        memory/5252-4-0x00000000743D0000-0x0000000074B8C000-memory.dmp

        memory/5252-5-0x0000000005910000-0x0000000005960000-memory.dmp

        memory/5252-0-0x00000000743E2000-0x00000000743E3000-memory.dmp

        memory/5252-2-0x0000000001260000-0x000000000126A000-memory.dmp

        memory/5252-11-0x0000000005C80000-0x0000000005D12000-memory.dmp

        memory/5252-12-0x00000000062E0000-0x000000000689A000-memory.dmp

        memory/5252-14-0x00000000068A0000-0x0000000006906000-memory.dmp

        memory/5252-31-0x00000000743D0000-0x0000000074B8C000-memory.dmp

        memory/5252-1-0x00000000006D0000-0x0000000000702000-memory.dmp