Analysis
- max time kernel
149s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
05/02/2026, 15:08
General
- Target 41fd49ca52f66d1ed07fe95fc4ffd2555b085c3d5490f9baee74887af9438d99.exe
- Size 1016KB
- Sample260205-sh684ahs2f
- SHA256 41fd49ca52f66d1ed07fe95fc4ffd2555b085c3d5490f9baee74887af9438d99
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.cottondreams.org
-
Port
587
-
Username
-
Password
Paydaysoon2025
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.cottondreams.org
-
Port
587
-
Username
-
Password
Paydaysoon2025
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 1 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- SmartAssembly .NET packer 1 IoCs
Detects SmartAssembly .NET packer.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\41fd49ca52f66d1ed07fe95fc4ffd2555b085c3d5490f9baee74887af9438d99.exe"C:\Users\Admin\AppData\Local\Temp\41fd49ca52f66d1ed07fe95fc4ffd2555b085c3d5490f9baee74887af9438d99.exe"1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\41fd49ca52f66d1ed07fe95fc4ffd2555b085c3d5490f9baee74887af9438d99.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\41fd49ca52f66d1ed07fe95fc4ffd2555b085c3d5490f9baee74887af9438d99.exe"C:\Users\Admin\AppData\Local\Temp\41fd49ca52f66d1ed07fe95fc4ffd2555b085c3d5490f9baee74887af9438d99.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_q1qis31n.qq5.ps1
memory/1640-8-0x0000000005030000-0x0000000005040000-memory.dmp
memory/1640-1-0x0000000005510000-0x0000000005AB4000-memory.dmp
memory/1640-3-0x0000000005030000-0x0000000005040000-memory.dmp
memory/1640-4-0x0000000004F80000-0x0000000004F8A000-memory.dmp
memory/1640-5-0x00000000051D0000-0x000000000526C000-memory.dmp
memory/1640-6-0x0000000006590000-0x000000000667A000-memory.dmp
memory/1640-7-0x0000000005190000-0x000000000519E000-memory.dmp
memory/1640-0-0x00000000003C0000-0x00000000004C4000-memory.dmp
memory/1640-2-0x0000000004EA0000-0x0000000004F32000-memory.dmp
memory/1640-9-0x00000000066B0000-0x0000000006780000-memory.dmp
memory/2228-43-0x000001ECBA180000-0x000001ECBA1F6000-memory.dmp
memory/2228-42-0x000001ECB7200000-0x000001ECB7244000-memory.dmp
memory/2228-34-0x000001EC9ED00000-0x000001EC9ED22000-memory.dmp
memory/3748-66-0x0000000005DB0000-0x0000000005E00000-memory.dmp
memory/3748-14-0x0000000000400000-0x0000000000440000-memory.dmp
memory/3748-67-0x00000000050C0000-0x00000000050D0000-memory.dmp
memory/3748-21-0x00000000050D0000-0x0000000005136000-memory.dmp
memory/3748-20-0x00000000050C0000-0x00000000050D0000-memory.dmp
memory/5028-16-0x00000000052C0000-0x00000000052D0000-memory.dmp
memory/5028-55-0x00000000080E0000-0x000000000875A000-memory.dmp
memory/5028-15-0x0000000002DD0000-0x0000000002E06000-memory.dmp
memory/5028-17-0x00000000052C0000-0x00000000052D0000-memory.dmp
memory/5028-32-0x0000000006770000-0x000000000678E000-memory.dmp
memory/5028-31-0x0000000006110000-0x0000000006464000-memory.dmp
memory/5028-23-0x00000000057C0000-0x0000000005826000-memory.dmp
memory/5028-45-0x0000000070AE0000-0x0000000070B2C000-memory.dmp
memory/5028-54-0x0000000007960000-0x0000000007A03000-memory.dmp
memory/5028-53-0x0000000006D80000-0x0000000006D9E000-memory.dmp
memory/5028-56-0x0000000007A90000-0x0000000007AAA000-memory.dmp
memory/5028-33-0x0000000006C30000-0x0000000006C7C000-memory.dmp
memory/5028-57-0x0000000007B10000-0x0000000007B1A000-memory.dmp
memory/5028-58-0x0000000007D10000-0x0000000007DA6000-memory.dmp
memory/5028-59-0x0000000007C90000-0x0000000007CA1000-memory.dmp
memory/5028-44-0x0000000006D40000-0x0000000006D72000-memory.dmp
memory/5028-61-0x0000000007CD0000-0x0000000007CE4000-memory.dmp
memory/5028-63-0x0000000007DB0000-0x0000000007DB8000-memory.dmp
memory/5028-62-0x0000000007DD0000-0x0000000007DEA000-memory.dmp
memory/5028-60-0x0000000007CC0000-0x0000000007CCE000-memory.dmp
memory/5028-22-0x0000000005720000-0x0000000005742000-memory.dmp
memory/5028-19-0x0000000005900000-0x0000000005F28000-memory.dmp