Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
24/04/2026, 03:50
General
- Target Employee Performance Reports 2026.exe
- Size 767KB
- Sample260424-ed5b2ses2x
- SHA256 6c74937b5fb434fb47dfe295355896e819ee33614c77078a7f09dee169fa0e59
Malware Config
Extracted
-
remcos
-
7.2.2 Pro
-
RemoteHost
-
130.12.181.93:3000
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
true
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-1GFDQF
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 5 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 4 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Employee Performance Reports 2026.exe"C:\Users\Admin\AppData\Local\Temp\Employee Performance Reports 2026.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Employee Performance Reports 2026.exe"C:\Users\Admin\AppData\Local\Temp\Employee Performance Reports 2026.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Employee Performance Reports 2026.exe"C:\Users\Admin\AppData\Local\Temp\Employee Performance Reports 2026.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Employee Performance Reports 2026.exe"C:\Users\Admin\AppData\Local\Temp\Employee Performance Reports 2026.exe"3⤵
-
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Executes dropped EXE
-
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"4⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"5⤵
- Executes dropped EXE
-
-
-
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
remcos.exe
05DDC6AA91765AACACDB0A5F96DF8199
24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
C02877841121CC45139CB51404116B25_BC09EBDB09AD35D6668D6BA2AFCDC914
DDE8B1B7E253A9758EC380BD648952AF_29234DE985D6C338FD1A56F68F3D76F4
05DDC6AA91765AACACDB0A5F96DF8199
24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
C02877841121CC45139CB51404116B25_BC09EBDB09AD35D6668D6BA2AFCDC914
DDE8B1B7E253A9758EC380BD648952AF_29234DE985D6C338FD1A56F68F3D76F4
System.dll
nsa3921.tmp
nsa39BE.tmp
nsa39BE.tmp
nsq38E1.tmp
nsq38E1.tmp
nsu69F4.tmp
nsv38B0.tmp
nsv38B0.tmp
nsv38B0.tmp
nsv3901.tmp
Approksimationernes
Prsent
efterlnsmodtagers.ule
neats.jpg
tappit.ini
memory/1444-1162-0x0000000002180000-0x0000000002202000-memory.dmp
memory/2992-559-0x00000000022C0000-0x0000000002342000-memory.dmp
memory/2992-558-0x0000000073FE5000-0x0000000073FE6000-memory.dmp
memory/4536-1180-0x0000000036460000-0x0000000036552000-memory.dmp
memory/4536-1200-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1212-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1210-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1208-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1206-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1204-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1202-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1172-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1177-0x0000000036460000-0x0000000036552000-memory.dmp
memory/4536-1181-0x0000000036460000-0x0000000036552000-memory.dmp
memory/4536-1198-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1189-0x0000000035210000-0x0000000035292000-memory.dmp
memory/4536-1188-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1190-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1192-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1194-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/4536-1196-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/5084-560-0x00000000772D8000-0x00000000772D9000-memory.dmp
memory/5084-593-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/5084-562-0x00000000772EB000-0x00000000772EC000-memory.dmp
memory/5084-561-0x000000007736B000-0x000000007736C000-memory.dmp
memory/5084-577-0x00000000004D0000-0x00000000017E7000-memory.dmp
memory/5084-582-0x0000000077241000-0x0000000077363000-memory.dmp
memory/5084-595-0x0000000077241000-0x0000000077363000-memory.dmp
memory/5084-594-0x0000000035210000-0x0000000035292000-memory.dmp