Analysis
- max time kernel
298s - max time network
302s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
09/02/2026, 12:21
General
- Target Outstanding Invoices.exe
- Size 468KB
- Sample260209-pjs63set7h
- SHA256 d2ec22b6ddbe0229ed41c7dbd8238504c541d4f8aa6005fb88062d470dffc145
Malware Config
Extracted
-
remcos
-
7.1.0 Pro
-
RemoteHost
-
161.248.178.69:2404
-
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
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-DWWVDD
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Remcos family
- Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- Loads dropped DLL 2 IoCs
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"C:\Users\Admin\AppData\Local\Temp\Outstanding Invoices.exe"3⤵
-
-
C:\Windows\SysWOW64\rmclient.exe/stext "C:\Users\Admin\AppData\Local\Temp\kpcjtwiotvqkrnmtxpw"3⤵
-
-
C:\Windows\SysWOW64\rmclient.exe/stext "C:\Users\Admin\AppData\Local\Temp\kpcjtwiotvqkrnmtxpw"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\rmclient.exe/stext "C:\Users\Admin\AppData\Local\Temp\vjpuuotqgdipbtixorjdbv"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\rmclient.exe/stext "C:\Users\Admin\AppData\Local\Temp\flumuzejulacehwbxcwfmilif"3⤵
-
-
C:\Windows\SysWOW64\rmclient.exe/stext "C:\Users\Admin\AppData\Local\Temp\flumuzejulacehwbxcwfmilif"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
logs.dat
kpcjtwiotvqkrnmtxpw
nsg13C3.tmp
nsg13C3.tmp
nsg13C3.tmp
nsg13C3.tmp
nsg13C3.tmp
nsl1432.tmp
nsl1432.tmp
System.dll
nsv1471.tmp
nsv1471.tmp
nsv1471.tmp
nsv1471.tmp
nsw14C1.tmp
nsw14C1.tmp
nsw14C1.tmp
nsw14C1.tmp
nsw14C1.tmp
nsw15AC.tmp
memory/536-591-0x0000000000400000-0x0000000000424000-memory.dmp
memory/728-629-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-620-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-580-0x0000000076EA1000-0x0000000076FC3000-memory.dmp
memory/728-581-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-582-0x0000000076FCB000-0x0000000076FCC000-memory.dmp
memory/728-685-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-682-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-679-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-563-0x0000000076FCB000-0x0000000076FCC000-memory.dmp
memory/728-677-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-674-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-564-0x0000000076F4B000-0x0000000076F4C000-memory.dmp
memory/728-599-0x00000000374A0000-0x00000000374B9000-memory.dmp
memory/728-603-0x00000000374A0000-0x00000000374B9000-memory.dmp
memory/728-602-0x00000000374A0000-0x00000000374B9000-memory.dmp
memory/728-604-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-607-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-562-0x0000000076F38000-0x0000000076F39000-memory.dmp
memory/728-611-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-614-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-617-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-576-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-623-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-626-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-670-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-640-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-643-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-646-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-649-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-652-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-655-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-658-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-661-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-664-0x0000000000470000-0x0000000001787000-memory.dmp
memory/728-667-0x0000000000470000-0x0000000001787000-memory.dmp
memory/1748-597-0x0000000000400000-0x000000000047E000-memory.dmp
memory/3440-561-0x0000000073C45000-0x0000000073C46000-memory.dmp
memory/3964-594-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3964-585-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4252-583-0x0000000000600000-0x000000000067E000-memory.dmp
memory/5392-586-0x00000000006A0000-0x00000000006C4000-memory.dmp