Analysis
- max time kernel
298s - max time network
300s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
27/10/2026, 15:51
General
- Target eCertificate_of_Creditable_Tax.exe
- Size 1.6MB
- Sample261027-tav2jadh93
- SHA256 ee96690fb956f184bbfe8c39a84b8927ef91cf75cbee0b2ccfbf9b3cd7339658
Malware Config
Signatures
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Suricata alert: REMCOS RAT Malware Inbound C2 Communication 8 IoCs
Network activity triggered a Suricata alert
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication 9 IoCs
Network activity triggered a Suricata alert
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- .NET Reactor proctector 64 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 8 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: Internet Connection Discovery 1 TTPs 5 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Runs ping.exe 1 TTPs 3 IoCs
- Suspicious behavior: EnumeratesProcesses 36 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\eCertificate_of_Creditable_Tax.exe"C:\Users\Admin\AppData\Local\Temp\eCertificate_of_Creditable_Tax.exe"1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd" /c ping 127.0.0.1 -n 20 > nul2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 203⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Windows\SysWOW64\cmd.exe"cmd" /c ping 127.0.0.1 -n 25 > nul && copy "C:\Users\Admin\AppData\Local\Temp\eCertificate_of_Creditable_Tax.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Gmas\Phtos.exe" && ping 127.0.0.1 -n 25 > nul && "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Gmas\Phtos.exe"2⤵
- Creates a file in the Startup directory
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 253⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 253⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Gmas\Phtos.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Gmas\Phtos.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"4⤵
- Suricata alert: REMCOS RAT Malware Inbound C2 Communication
- Suricata alert: REMCOS RAT Malware Outbound C2 Communication
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
Loading Replay Monitor...
Downloads
Phtos.exe
memory/1580-0-0x0000000074232000-0x0000000074233000-memory.dmp
memory/1580-1-0x0000000000CC0000-0x0000000000E5C000-memory.dmp
memory/1580-2-0x0000000006040000-0x00000000065FA000-memory.dmp
memory/1580-3-0x0000000005970000-0x0000000005A02000-memory.dmp
memory/1580-4-0x0000000005B20000-0x0000000005BBC000-memory.dmp
memory/1580-5-0x0000000005960000-0x000000000596A000-memory.dmp
memory/1580-6-0x0000000074220000-0x00000000749DC000-memory.dmp
memory/1580-7-0x0000000009680000-0x00000000096E6000-memory.dmp
memory/1580-13-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-25-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-11-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-9-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-8-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-37-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-35-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-109-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-107-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-87-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-78-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-27-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-17-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-15-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-134-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-132-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-130-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-127-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-125-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-121-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-117-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-116-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-113-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-112-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-105-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-103-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-102-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-99-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-95-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-93-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-91-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-90-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-85-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-84-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-81-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-79-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-71-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-69-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-67-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-65-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-63-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-61-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-59-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-55-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-53-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-51-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-49-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-47-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-45-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-43-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-41-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-39-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-33-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-31-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-29-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-23-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-21-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-19-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-123-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-119-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-97-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-75-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-73-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-57-0x0000000009680000-0x0000000009704000-memory.dmp
memory/1580-670-0x0000000074220000-0x00000000749DC000-memory.dmp
memory/1580-671-0x0000000009970000-0x0000000009CCB000-memory.dmp
memory/1580-672-0x00000000098C0000-0x00000000098E2000-memory.dmp
memory/1580-673-0x0000000009910000-0x000000000992A000-memory.dmp
memory/1580-674-0x0000000074220000-0x00000000749DC000-memory.dmp
memory/1580-675-0x0000000074232000-0x0000000074233000-memory.dmp
memory/1580-676-0x0000000074220000-0x00000000749DC000-memory.dmp
memory/2640-678-0x00000000741F0000-0x00000000749AC000-memory.dmp
memory/2640-1341-0x00000000091F0000-0x000000000954B000-memory.dmp
memory/2640-1342-0x00000000741F0000-0x00000000749AC000-memory.dmp
memory/2640-1343-0x0000000009BF0000-0x0000000009C1A000-memory.dmp
memory/2640-1475-0x00000000741F0000-0x00000000749AC000-memory.dmp