Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
29/05/2024, 01:32
General
- Target 747ea71ee4743ed14b66b6a88371819a04350632aeb3ed66e4d40ec53a9ba5ec.exe
- Size 889KB
- Sample240529-bybcxsdg87
- SHA256 747ea71ee4743ed14b66b6a88371819a04350632aeb3ed66e4d40ec53a9ba5ec
Malware Config
Extracted
-
remcos
-
76364
-
103.150.8.12:5689
-
audio_folder
MicRecords
-
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-FF0K7G
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
Remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- detects Windows exceutables potentially bypassing UAC using eventvwr.exe 18 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\747ea71ee4743ed14b66b6a88371819a04350632aeb3ed66e4d40ec53a9ba5ec.exe"C:\Users\Admin\AppData\Local\Temp\747ea71ee4743ed14b66b6a88371819a04350632aeb3ed66e4d40ec53a9ba5ec.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dvfmprYskORfhB.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dvfmprYskORfhB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp760B.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\747ea71ee4743ed14b66b6a88371819a04350632aeb3ed66e4d40ec53a9ba5ec.exe"C:\Users\Admin\AppData\Local\Temp\747ea71ee4743ed14b66b6a88371819a04350632aeb3ed66e4d40ec53a9ba5ec.exe"2⤵
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_s0xianmv.nox.ps1
tmp760B.tmp
memory/972-41-0x00000000063B0000-0x00000000063CE000-memory.dmp
memory/972-28-0x0000000005C20000-0x0000000005C42000-memory.dmp
memory/972-19-0x0000000075010000-0x00000000757C0000-memory.dmp
memory/972-42-0x00000000063D0000-0x000000000641C000-memory.dmp
memory/972-67-0x0000000075010000-0x00000000757C0000-memory.dmp
memory/972-64-0x00000000079E0000-0x00000000079E8000-memory.dmp
memory/972-63-0x0000000007A00000-0x0000000007A1A000-memory.dmp
memory/972-43-0x0000000007350000-0x0000000007382000-memory.dmp
memory/972-62-0x0000000007900000-0x0000000007914000-memory.dmp
memory/972-61-0x00000000078F0000-0x00000000078FE000-memory.dmp
memory/972-60-0x00000000078C0000-0x00000000078D1000-memory.dmp
memory/972-59-0x0000000007940000-0x00000000079D6000-memory.dmp
memory/972-58-0x0000000007730000-0x000000000773A000-memory.dmp
memory/972-57-0x00000000076C0000-0x00000000076DA000-memory.dmp
memory/972-56-0x0000000007D10000-0x000000000838A000-memory.dmp
memory/972-55-0x0000000007390000-0x0000000007433000-memory.dmp
memory/972-54-0x0000000006970000-0x000000000698E000-memory.dmp
memory/972-44-0x0000000071900000-0x000000007194C000-memory.dmp
memory/972-26-0x0000000075010000-0x00000000757C0000-memory.dmp
memory/972-15-0x0000000004E10000-0x0000000004E46000-memory.dmp
memory/972-17-0x0000000075010000-0x00000000757C0000-memory.dmp
memory/972-29-0x0000000005CC0000-0x0000000005D26000-memory.dmp
memory/972-18-0x00000000055C0000-0x0000000005BE8000-memory.dmp
memory/972-30-0x0000000005D30000-0x0000000005D96000-memory.dmp
memory/972-40-0x0000000005FD0000-0x0000000006324000-memory.dmp
memory/4740-72-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-25-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-80-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-79-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-78-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-24-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-69-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-21-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-23-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-20-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-73-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-71-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-70-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4740-68-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5108-7-0x0000000006A00000-0x0000000006A0C000-memory.dmp
memory/5108-1-0x0000000000C60000-0x0000000000D44000-memory.dmp
memory/5108-2-0x0000000005D20000-0x00000000062C4000-memory.dmp
memory/5108-0-0x000000007501E000-0x000000007501F000-memory.dmp
memory/5108-3-0x0000000005770000-0x0000000005802000-memory.dmp
memory/5108-5-0x0000000075010000-0x00000000757C0000-memory.dmp
memory/5108-6-0x00000000068D0000-0x00000000068E6000-memory.dmp
memory/5108-8-0x0000000006A10000-0x0000000006A20000-memory.dmp
memory/5108-9-0x0000000006A20000-0x0000000006ADE000-memory.dmp
memory/5108-10-0x000000000A970000-0x000000000AA0C000-memory.dmp
memory/5108-27-0x0000000075010000-0x00000000757C0000-memory.dmp
memory/5108-4-0x0000000005740000-0x000000000574A000-memory.dmp