Analysis
- max time kernel
149s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20260130-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
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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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 5 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 4 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⤵
- Checks computer location settings
- 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
Replay Monitor
Loading Replay Monitor...
Downloads
remcos.exe
05DDC6AA91765AACACDB0A5F96DF8199
24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
C02877841121CC45139CB51404116B25_BC09EBDB09AD35D6668D6BA2AFCDC914
DDE8B1B7E253A9758EC380BD648952AF_29234DE985D6C338FD1A56F68F3D76F4
05DDC6AA91765AACACDB0A5F96DF8199
24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
C02877841121CC45139CB51404116B25_BC09EBDB09AD35D6668D6BA2AFCDC914
DDE8B1B7E253A9758EC380BD648952AF_29234DE985D6C338FD1A56F68F3D76F4
System.dll
nsa5E9B.tmp
nsa5E9B.tmp
nsf5E6A.tmp
nsiF079.tmp
nsiF079.tmp
nsiF079.tmp
nssF106.tmp
nsu5E29.tmp
nsu5E29.tmp
nsu5E29.tmp
nsv5E7B.tmp
nsv5F67.tmp
nsxEFEA.tmp
nsxEFEA.tmp
Approksimationernes
Prsent
efterlnsmodtagers.ule
neats.jpg
memory/1328-1186-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1187-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1175-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1188-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1185-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1184-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1183-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1182-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1181-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1180-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1328-1179-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1352-584-0x00000000778C1000-0x00000000779E1000-memory.dmp
memory/1352-560-0x0000000077948000-0x0000000077949000-memory.dmp
memory/1352-562-0x0000000077965000-0x0000000077966000-memory.dmp
memory/1352-561-0x00000000779E9000-0x00000000779EA000-memory.dmp
memory/1352-563-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1352-564-0x00000000779E9000-0x00000000779EA000-memory.dmp
memory/1352-579-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/1352-597-0x00000000778C1000-0x00000000779E1000-memory.dmp
memory/1352-596-0x0000000035A00000-0x0000000035A3B000-memory.dmp
memory/1352-595-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/2332-558-0x00000000745A5000-0x00000000745A6000-memory.dmp
memory/2332-559-0x0000000000950000-0x000000000098B000-memory.dmp
memory/4776-1164-0x0000000000810000-0x000000000084B000-memory.dmp