Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20251231-en - resource tags
- submitted
18/01/2026, 20:00
General
- Target rDEC_SOA.exe
- Size 393KB
- Sample260118-yrbrfaey7c
- SHA256 9fe4d4fa0652fe7d37175a5e866dd0ec2f446c9b1d92ca6eb88dfdaf04984a99
Malware Config
Extracted
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remcos
-
7.1.0 Pro
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RemoteHost
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130.12.182.167:2404
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130.12.182.167:5000
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audio_folder
MicRecords
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audio_path
ApplicationPath
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audio_record_time
5
-
connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
-
copy_folder
Remcos
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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
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mouse_option
false
-
mutex
Rmc-POYJBD
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
- Guloader family
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Remcos family
- Detected Nirsoft tools 2 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 IoCs
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- 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
- Suspicious use of SetThreadContext 3 IoCs
- Drops file in Program Files 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 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- NSIS installer 2 IoCs
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\rDEC_SOA.exe"C:\Users\Admin\AppData\Local\Temp\rDEC_SOA.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rDEC_SOA.exe"C:\Users\Admin\AppData\Local\Temp\rDEC_SOA.exe"2⤵
-
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C:\Users\Admin\AppData\Local\Temp\rDEC_SOA.exe"C:\Users\Admin\AppData\Local\Temp\rDEC_SOA.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\rDEC_SOA.exe"C:\Users\Admin\AppData\Local\Temp\rDEC_SOA.exe"3⤵
-
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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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
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Remcos\remcos.exe"C:\ProgramData\Remcos\remcos.exe"5⤵
- Executes dropped EXE
-
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C:\Windows\SysWOW64\rmclient.exe/stext "C:\Users\Admin\AppData\Local\Temp\drjfgamodbodlywfkxswwnvn"5⤵
- 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\nloxhtehrjgivesjbifxhspwves"5⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\rmclient.exe/stext "C:\Users\Admin\AppData\Local\Temp\yntqilpjfrynxsgnktszkfkndkcxrg"5⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
-
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
remcos.exe
24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
DDE8B1B7E253A9758EC380BD648952AF_4DBB40BE3BAF750990AF8239710D24AD
DDE8B1B7E253A9758EC380BD648952AF_8F5D739B7417E21969237B1D71DBCDD2
24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
DDE8B1B7E253A9758EC380BD648952AF_4DBB40BE3BAF750990AF8239710D24AD
DDE8B1B7E253A9758EC380BD648952AF_8F5D739B7417E21969237B1D71DBCDD2
drjfgamodbodlywfkxswwnvn
System.dll
Farvemestrene59.ban
elektrolytiske.ude
gifteknive.rag
glatfret.bat
hovedstillingens.ads
positionsangivelserne.bag
memory/880-86-0x0000000000400000-0x0000000000424000-memory.dmp
memory/880-82-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1916-81-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1916-88-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2116-76-0x0000000000460000-0x0000000001777000-memory.dmp
memory/2116-96-0x0000000035A40000-0x0000000035A59000-memory.dmp
memory/2116-95-0x0000000035A40000-0x0000000035A59000-memory.dmp
memory/2116-92-0x0000000035A40000-0x0000000035A59000-memory.dmp
memory/3816-15-0x0000000073C74000-0x0000000073C75000-memory.dmp
memory/3816-16-0x0000000004A60000-0x0000000007900000-memory.dmp
memory/3816-14-0x0000000004A60000-0x0000000007900000-memory.dmp
memory/4612-29-0x0000000000460000-0x0000000001777000-memory.dmp
memory/4612-42-0x0000000001780000-0x0000000004620000-memory.dmp
memory/4848-80-0x0000000000400000-0x000000000047E000-memory.dmp
memory/4848-90-0x0000000000400000-0x000000000047E000-memory.dmp