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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fcb72d60ea27fcfc2562c1b2004ec736a0563b5c07722927eb5ee12d7c20e856. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AntarctidaStealer


Vendor detections: 15


Intelligence 15 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fcb72d60ea27fcfc2562c1b2004ec736a0563b5c07722927eb5ee12d7c20e856
SHA3-384 hash: c3c279f8fb39396eda41bfe00e747cf16164299cc8fb185dca112f07b122e11ba479ae30c255c6fdf6de89714089d5cc
SHA1 hash: eeae6ef2deca3014c10cb0a23ff2a6547f1aa83a
MD5 hash: 601c8a2ec726dd4b7a674c87712cde73
humanhash: snake-minnesota-vegan-nine
File name:fcb72d60ea27fcfc2562c1b2004ec736a0563b5c07722927eb5ee12d7c20e856.bin
Download: download sample
Signature AntarctidaStealer
Create hunting rule
File size:247'040 bytes
First seen:2026-11-10 12:08:41 UTC
Last seen:2026-11-10 12:49:42 UTC
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'354 x AgentTesla, 20'854 x Formbook, 12'417 x SnakeKeylogger)
ssdeep 6144:Q3mNPEyvobjomddIDhANjeX/z4b4tO2qgW/5b:4mN8yv2KAUvfvqL/F
TLSH T15F344B197EC94812DAAF8EB4D4EC60BA8ABDE0731482F3571596D1760E527D0FE02C7B
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter kernelv0id
Tags:AntarctidaStealer exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
157
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-11-10 17:31:06 UTC
Tags:
auto-sch telegram ip-check exfiltration stealer antarctida auto-reg evasion arch-scr arch-doc external-template
Link:
https://app.any.run/tasks/7a8efc7c-96d4-4761-b9d1-8b440b57ea16

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/99149/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6af30970463538821bc39ee4
Tags:
injection autorun shell sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating synchronization primitives
Creating a file
Launching a process
Enabling the 'hidden' option for recently created files
Enabling the 'hidden' option for analyzed file
Creating a file in the %temp% directory
Running batch commands
Reading critical registry keys
Deleting a recently created file
Launching the process to change network settings
Creating a window
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 dropper expired-cert invalid-signature masquerade obfuscated obfuscated quasarrat reconnaissance signed
Link:
https://www.filescan.io/uploads/6af30970d3a2fe92d60c1fb5/reports/18f8f946-17ee-49bf-96c2-3291a0ce1d6c/overview
Verdict:
Malicious
Labled as:
MSIL.Krypt.Generic
Link:
https://www.hybrid-analysis.com/sample/fcb72d60ea27fcfc2562c1b2004ec736a0563b5c07722927eb5ee12d7c20e856
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-03-16T12:39:00Z UTC
Last seen:
2026-04-12T05:52:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/fcb72d60ea27fcfc2562c1b2004ec736a0563b5c07722927eb5ee12d7c20e856/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b207ceb9-404e-47fb-b4e8-4fd5c790c4d8
Result
Threat name:
Antarctica Loader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/2003197
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates multiple autostart registry keys
Found malware configuration
Found suspicious ZIP file
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential Privilege Escalation using Task Scheduler highest RunLevel
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Self deletion via cmd or bat file
Sigma detected: Capture Wi-Fi password
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected Antarctica Loader
Yara detected Generic Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 2003197 Sample: 2s4smKPMHa.exe Startdate: 10/11/2026 Architecture: WINDOWS Score: 100 75 api.telegram.org 2->75 77 api.ipify.org 2->77 83 Suricata IDS alerts for network traffic 2->83 85 Found malware configuration 2->85 87 Antivirus / Scanner detection for submitted sample 2->87 91 9 other signatures 2->91 9 2s4smKPMHa.exe 16 93 2->9         started        14 gHFFXg6A85T4.exe 1 2->14         started        16 oPQByBOZ7iek.exe 2->16         started        18 14 other processes 2->18 signatures3 89 Uses the Telegram API (likely for C&C communication) 75->89 process4 dnsIp5 79 api.telegram.org 149.154.166.110, 443, 49718, 49719 TELEGRAMVG Netherlands 9->79 81 api.ipify.org 104.26.12.205, 443, 49717, 49723 CLOUDFLARENET-CloudflareIncUS Canada 9->81 59 C:\Users\user\AppData\...\gHFFXg6A85T4.exe, PE32 9->59 dropped 61 C:\...\dcb125a8aaeb42b5b7eb217b854439b1.bat, DOS 9->61 dropped 63 C:\Users\user\AppData\...\2s4smKPMHa.exe.log, ASCII 9->63 dropped 65 C:\Users\...\gHFFXg6A85T4.exe:Zone.Identifier, ASCII 9->65 dropped 115 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 9->115 117 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->117 119 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 9->119 135 4 other signatures 9->135 20 schtasks.exe 1 9->20         started        23 cmd.exe 1 9->23         started        25 netsh.exe 2 9->25         started        121 Antivirus detection for dropped file 14->121 123 Multi AV Scanner detection for dropped file 14->123 125 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 14->125 127 Tries to harvest and steal WLAN passwords 16->127 129 Queries memory information (via WMI often done to detect virtual machines) 16->129 67 C:\Users\user\AppData\...\IrxOIYZ1hezT.exe, PE32 18->67 dropped 69 C:\Users\user\AppData\...\P6TuuSZ7nR2h.exe, PE32 18->69 dropped 71 C:\Users\user\AppData\...\oPQByBOZ7iek.exe, PE32 18->71 dropped 73 6 other malicious files 18->73 dropped 131 Creates multiple autostart registry keys 18->131 133 Tries to harvest and steal browser information (history, passwords, etc) 18->133 27 netsh.exe 18->27         started        29 cmd.exe 18->29         started        31 cmd.exe 18->31         started        33 13 other processes 18->33 file6 signatures7 process8 signatures9 101 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 20->101 103 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 20->103 105 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 20->105 107 Queries memory information (via WMI often done to detect virtual machines) 20->107 35 conhost.exe 20->35         started        38 conhost.exe 23->38         started        40 timeout.exe 1 23->40         started        42 conhost.exe 25->42         started        44 conhost.exe 27->44         started        46 conhost.exe 29->46         started        48 timeout.exe 29->48         started        50 2 other processes 31->50 52 15 other processes 33->52 process10 signatures11 93 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 35->93 95 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 35->95 97 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 35->97 99 Queries memory information (via WMI often done to detect virtual machines) 35->99 54 nOQX2IWIi14v.exe 44->54         started        57 consent.exe 46->57         started        process12 signatures13 109 Antivirus detection for dropped file 54->109 111 Multi AV Scanner detection for dropped file 54->111 113 Writes to foreign memory regions 57->113
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.88 Win 32 Exe x86
Link:
https://app.malva.re/file/601c8a2ec726dd4b7a674c87712cde73
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fcb72d60ea27fcfc2562c1b2004ec736a0563b5c07722927eb5ee12d7c20e856/
Threat name:
ByteCode-MSIL.Trojan.AdvML
Create hunting rule
Status:
Malicious
First seen:
2026-03-16 19:14:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
28 of 36 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7s3s2yhke76pyjlcygzaatwhg2qfmo24a5zcsj7ll3qs27ba5bla._file
Result
Malware family:
antarctida_stealer
Create hunting rule
Score:
  10/10
Tags:
family:antarctida_stealer defense_evasion discovery execution persistence privilege_escalation spyware stealer
Link:
https://tria.ge/reports/261110-pbkvqssyhv/
Behaviour
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
Event Triggered Execution: Netsh Helper DLL
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Wi-Fi Discovery
Adds Run key to start application
Looks up external IP address via web service
Executes dropped EXE
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Family: AntarctidaStealer
Malware Config
C2 Extraction:
https://api.telegram.org/bot8615407111:AAHxPuURTEMrcYkQjxo8X-Py_WTykOZBU-8/sendMessage?chat_id=1288879208
Malware Family:
n/a
Verdict:
Malicious
Tags:
invalid_signature apt28 stealer rat evasion
YARA:
APT28_IMPLANT_1_v6
Link:
https://app.threat.zone/submission/2d07e85f-bc64-4eb1-ac7e-4859cfe2c22f
Malware Family:
msil
Create hunting rule
Malicious:
True
Tags:
exe file-overlay obfuscated wmi-activity signed invalid-signature dotnet persistence debug-check polymorphic
Link:
https://intel.virussign.com/intelligence/file/fcb72d60ea27fcfc2562c1b2004ec736a0563b5c07722927eb5ee12d7c20e856
Unpacked files
SH256 hash:
fcb72d60ea27fcfc2562c1b2004ec736a0563b5c07722927eb5ee12d7c20e856
MD5 hash:
601c8a2ec726dd4b7a674c87712cde73
SHA1 hash:
eeae6ef2deca3014c10cb0a23ff2a6547f1aa83a
Link:
https://www.unpac.me/results/d81b42de-232a-496b-a535-f3df4cedfadc/
Malware family:
AntarcidaStealer
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fcb72d60ea27/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:WIN_Malware_Unknown_ForgeAuto_6717780a_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat extrait)
Rule name:WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects XWorm (pe, etat extrait)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/99149/

Comments