General
- Target LostInWinter Setup 2.1.1.exe.bad
- Size 85.9MB
- Sample260805-aer1wstdmf
- SHA256 b1d3214d094f13957cf4cfaa04f6cbd5d621ddc5f4aee5a64d686740f063c76e
- MD5 9ec1867bf0b580abae462efa239b214c
- SHA1 fe96359803d7a4c2de4f900f95b0fc9d76e299f2
- SHA512 cd5f90618ac15c937f567305e7fe77f1fb2dbf96bdfa11623ca54b8511f61a0a37ff5587963fe441601f4eb97741bcadf669232a69fa03214b41a28a02aab880
- SSDEEP 1572864:cX+BWMFDe45kQsab5o6hDRVOl+7IQSnNa1hItzM1gMnOC6e/RsB65IFJKsKd3Iys:cOBFle459NjhDRVMJGOtzMpnf7R956Aa
- TLSH T15218335D2FC0E846E01DE2FF7A6623A11E59B9CB6BF3F257546C806E2C58770A940363
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
LostInWinter Setup 2.1.1.exe
Resource
win10v2004-20260513-en
Malware Config
Targets
-
- Target LostInWinter Setup 2.1.1.exe.bad
- Size 85.9MB
- SHA256 b1d3214d094f13957cf4cfaa04f6cbd5d621ddc5f4aee5a64d686740f063c76e
- MD5 9ec1867bf0b580abae462efa239b214c
- SHA1 fe96359803d7a4c2de4f900f95b0fc9d76e299f2
- SHA512 cd5f90618ac15c937f567305e7fe77f1fb2dbf96bdfa11623ca54b8511f61a0a37ff5587963fe441601f4eb97741bcadf669232a69fa03214b41a28a02aab880
- SSDEEP 1572864:cX+BWMFDe45kQsab5o6hDRVOl+7IQSnNa1hItzM1gMnOC6e/RsB65IFJKsKd3Iys:cOBFle459NjhDRVMJGOtzMpnf7R956Aa
- TLSH T15218335D2FC0E846E01DE2FF7A6623A11E59B9CB6BF3F257546C806E2C58770A940363
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Command and Scripting Interpreter: PowerShell
Run Powershell to get system information as a root user.
-
Modifies Windows Firewall
-
Executes dropped EXE
-
Loads dropped DLL
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Obfuscated Files or Information: Command Obfuscation
Adversaries may obfuscate content during command execution to impede detection.
-
Discovers running processes
Running process information can be used to identify security tools or plan follow-on actions.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Windows Command Shell
1Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Hide Artifacts
1Ignore Process Interrupts
1Impair Defenses
1Disable or Modify System Firewall
1Obfuscated Files or Information
1Command Obfuscation
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1