Overview

overview

10

Static

static

10

Antarctida...4r.exe

windows10-2004-x64

10

Antarctida...4r.exe

windows11-ltsc_2024-x64

10

Analysis

  • user interaction
    yes
  • max time kernel
    148s
  • max time network
    113s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 01:26

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    Antarctida_2fgabpllk04r.exe
  • Size 178KB
  • Sample260808-bty87azxav
  • SHA256 b7296664efedcce0cae8c97e9c24e7997c048930884dccc0b8dfb9353da9c936
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
collectiondiscoveryexecutionantarctida_stealerpersistenceprivilege_escalationspywarestealer

Malware Config

Extracted

Family

  • antarctida_stealer

Mutex

  • M5NAHPWHSRO2AMO4SWUQWJZ1VU61C1FI3IKLY1HSAS0UCLNPAMHBYY8Q92BC1PRC

Attributes
  • Wifi

    true

  • anti_debug

    true

  • anti_vm

    true

  • bot_token

    MTUzNTQ1ODEzNDI5NzAxODM3OQ.Gj2cgK.UaDl1yW77G-GLwemknuTxAyjhM5p2xVeXBdc5k

  • browsers

    true

  • chat_id

    1489351764561100944

  • crypto

    true

  • ftp

    true

  • gaming

    true

  • grabber

    true

  • hide

    false

  • hosts

    false

  • mail

    true

  • melt

    false

  • messengers

    true

  • mutex

    M5NAHPWHSRO2AMO4SWUQWJZ1VU61C1FI3IKLY1HSAS0UCLNPAMHBYY8Q92BC1PRC

  • netstat

    true

  • process_dump

    false

  • product_key

    true

  • screenshot

    true

  • sockets

    true

  • startup

    true

  • sys_info

    true

  • vpn

    true

  • watchdog

    true

  • webcam

    true

Signatures

  • Family: AntarctidaStealer

    AntarctidaStealer is an Windows stealer written in C#.

    stealerantarctida_stealer
  • Executes dropped EXE 22 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

    spywarestealer
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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.

    discovery
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 26 IoCs

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

    discovery
  • 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.

    discovery
  • System Network Connections Discovery 1 TTPs 1 IoCs

    Attempt to get a listing of network connections.

    discovery
  • 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.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Antarctida_2fgabpllk04r.exe
    "C:\Users\Admin\AppData\Local\Temp\Antarctida_2fgabpllk04r.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:2932
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "biPAKt0CfiIE" /tr "\"C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe\"" /sc onlogon /rl highest /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3712
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2424
    • 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:716
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1304
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3700
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3776
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1468
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2360
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:6100
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3268
    • 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:2584
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:5852
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:604
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2408
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3288
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1368
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:5208
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2988
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2388
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4736
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3764
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2828
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:5648
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:712
    • C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
      "C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3248

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Command and Scripting Interpreter

        1
        T1059

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Scheduled Task/Job

        1
        T1053

        Scheduled Task

        1
        T1053.005

        Defense Evasion

        Modify Registry

        1
        T1112

        Credential Access

        Credentials from Password Stores

        1
        T1555

        Credentials from Web Browsers

        1
        T1555.003

        Unsecured Credentials

        2
        T1552

        Credentials In Files

        1
        T1552.001

        Credentials in Registry

        1
        T1552.002

        Discovery

        Browser Information Discovery

        1
        T1217

        System Information Discovery

        2
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        System Network Configuration Discovery

        2
        T1016

        Internet Connection Discovery

        1
        T1016.001

        Wi-Fi Discovery

        1
        T1016.002

        System Network Connections Discovery

        1
        T1049

        Lateral Movement

        Collection

        Data from Local System

        2
        T1005

        Email Collection

        1
        T1114

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        y53mPuioZLgj.exe
        • Path C:\Users\Admin\AppData\Local\RqVDB0fiWqZF\y53mPuioZLgj.exe
        • Size 178KB
        • SHA256 b7296664efedcce0cae8c97e9c24e7997c048930884dccc0b8dfb9353da9c936
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/2424-12-0x0000000074FD0000-0x000000007578C000-memory.dmp
        Download

        memory/2424-11-0x0000000074FD0000-0x000000007578C000-memory.dmp
        Download

        memory/2932-4-0x0000000005800000-0x0000000005812000-memory.dmp
        Download

        memory/2932-3-0x00000000057B0000-0x00000000057BA000-memory.dmp
        Download

        memory/2932-5-0x0000000074FD0000-0x000000007578C000-memory.dmp
        Download

        memory/2932-6-0x0000000005F70000-0x0000000005FC0000-memory.dmp
        Download

        memory/2932-0-0x0000000074FE2000-0x0000000074FE3000-memory.dmp
        Download

        memory/2932-2-0x0000000004D50000-0x0000000004DB6000-memory.dmp
        Download

        memory/2932-1-0x00000000003D0000-0x0000000000402000-memory.dmp
        Download

        memory/2932-13-0x0000000005C10000-0x0000000005CA2000-memory.dmp
        Download

        memory/2932-14-0x0000000006C60000-0x000000000721A000-memory.dmp
        Download

        memory/2932-18-0x0000000074FE2000-0x0000000074FE3000-memory.dmp
        Download

        memory/2932-19-0x0000000074FD0000-0x000000007578C000-memory.dmp
        Download

        memory/2932-55-0x0000000074FD0000-0x000000007578C000-memory.dmp
        Download