Analysis
- max time kernel
148s - max time network
143s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
08/08/2026, 01:28
General
- Target Antarctida_6zfop9lzgy14.exe
- Size 178KB
- Sample260808-bvtp4aba83
- SHA256 6e170bf3012d8c67c642848a419fe8c8e45f08b539c93e1336d5e4676345e771
Malware Config
Extracted
-
antarctida_stealer
-
9T6NLAFAZ6XVRJQ7T5PI5WKK99GXVOF3ZXFLR5R5DGJ5NGCLV27Q6SQOJ74XI3A3
-
Wifi
true
-
anti_debug
false
-
anti_vm
false
-
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
9T6NLAFAZ6XVRJQ7T5PI5WKK99GXVOF3ZXFLR5R5DGJ5NGCLV27Q6SQOJ74XI3A3
-
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#.
- Executes dropped EXE 3 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.
- 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.
- 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.
- 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 64 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
- outlook_office_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Antarctida_6zfop9lzgy14.exe"C:\Users\Admin\AppData\Local\Temp\Antarctida_6zfop9lzgy14.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
-
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "WKB77P1eEPwU" /tr "\"C:\Users\Admin\AppData\Local\qCXV0NFzUuwr\go2UxhWKR1jc.exe\"" /sc onlogon /rl highest /f2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\qCXV0NFzUuwr\go2UxhWKR1jc.exe"C:\Users\Admin\AppData\Local\qCXV0NFzUuwr\go2UxhWKR1jc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profiles2⤵
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Wi-Fi Discovery
-
-
C:\Users\Admin\AppData\Local\qCXV0NFzUuwr\go2UxhWKR1jc.exe"C:\Users\Admin\AppData\Local\qCXV0NFzUuwr\go2UxhWKR1jc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\netstat.exe"netstat.exe" -ano2⤵
- System Location Discovery: System Language Discovery
- System Network Connections Discovery
- Gathers network information
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\qCXV0NFzUuwr\go2UxhWKR1jc.exe"C:\Users\Admin\AppData\Local\qCXV0NFzUuwr\go2UxhWKR1jc.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
1Credentials in Registry
1Discovery
Browser Information Discovery
1System Information Discovery
2System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
2Internet Connection Discovery
1Wi-Fi Discovery
1System Network Connections Discovery
1Replay Monitor
Loading Replay Monitor...
Downloads
go2UxhWKR1jc.exe
memory/3312-34-0x0000000074CB0000-0x000000007546C000-memory.dmp
memory/3312-11-0x0000000074CB0000-0x000000007546C000-memory.dmp
memory/3360-4-0x0000000004A70000-0x0000000004A82000-memory.dmp
memory/3360-3-0x0000000002490000-0x000000000249A000-memory.dmp
memory/3360-5-0x0000000005D30000-0x0000000005D80000-memory.dmp
memory/3360-0-0x0000000074CC2000-0x0000000074CC3000-memory.dmp
memory/3360-2-0x0000000074CB0000-0x000000007546C000-memory.dmp
memory/3360-12-0x0000000005FA0000-0x0000000006032000-memory.dmp
memory/3360-13-0x0000000006600000-0x0000000006BBA000-memory.dmp
memory/3360-15-0x0000000006BC0000-0x0000000006C26000-memory.dmp
memory/3360-33-0x0000000074CB0000-0x000000007546C000-memory.dmp
memory/3360-1-0x0000000000080000-0x00000000000B2000-memory.dmp