Analysis
- max time kernel
149s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
24/07/2024, 03:10
General
- Target rfq1960.exe
- Size 904KB
- Sample240724-dn6gesyarh
- SHA256 2768689f6c4a60b7fe18d6c87fdecd8a7f8dceefa298a5851c4a7c6909f3a92d
Malware Config
Extracted
-
remcos
-
5764576
-
172.93.218.178:45667
-
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
765-XJJE0J
-
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.
- 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).
- 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.
- Scheduled Task/Job: Scheduled Task 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\rfq1960.exe"C:\Users\Admin\AppData\Local\Temp\rfq1960.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\TlykqEvmBV.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TlykqEvmBV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA46E.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\rfq1960.exe"C:\Users\Admin\AppData\Local\Temp\rfq1960.exe"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_3tm50z5r.xbg.ps1
tmpA46E.tmp
memory/452-6-0x00000000051C0000-0x00000000051DA000-memory.dmp
memory/452-3-0x0000000004C30000-0x0000000004CC2000-memory.dmp
memory/452-4-0x00000000750C0000-0x0000000075870000-memory.dmp
memory/452-5-0x0000000004C10000-0x0000000004C1A000-memory.dmp
memory/452-2-0x00000000051E0000-0x0000000005784000-memory.dmp
memory/452-7-0x0000000005D90000-0x0000000005D9E000-memory.dmp
memory/452-8-0x0000000005DF0000-0x0000000005EAE000-memory.dmp
memory/452-9-0x0000000006000000-0x000000000609C000-memory.dmp
memory/452-0-0x00000000750CE000-0x00000000750CF000-memory.dmp
memory/452-40-0x00000000750C0000-0x0000000075870000-memory.dmp
memory/452-1-0x0000000000120000-0x0000000000208000-memory.dmp
memory/2196-42-0x0000000006260000-0x00000000062AC000-memory.dmp
memory/2196-57-0x0000000007560000-0x000000000757A000-memory.dmp
memory/2196-19-0x00000000750C0000-0x0000000075870000-memory.dmp
memory/2196-20-0x0000000005270000-0x0000000005292000-memory.dmp
memory/2196-67-0x00000000750C0000-0x0000000075870000-memory.dmp
memory/2196-64-0x0000000007880000-0x0000000007888000-memory.dmp
memory/2196-17-0x0000000005450000-0x0000000005A78000-memory.dmp
memory/2196-63-0x00000000078A0000-0x00000000078BA000-memory.dmp
memory/2196-15-0x00000000750C0000-0x0000000075870000-memory.dmp
memory/2196-62-0x00000000077A0000-0x00000000077B4000-memory.dmp
memory/2196-61-0x0000000007790000-0x000000000779E000-memory.dmp
memory/2196-39-0x0000000005D60000-0x00000000060B4000-memory.dmp
memory/2196-25-0x0000000005BF0000-0x0000000005C56000-memory.dmp
memory/2196-23-0x0000000005390000-0x00000000053F6000-memory.dmp
memory/2196-60-0x0000000007760000-0x0000000007771000-memory.dmp
memory/2196-41-0x0000000006210000-0x000000000622E000-memory.dmp
memory/2196-14-0x0000000002910000-0x0000000002946000-memory.dmp
memory/2196-44-0x0000000075950000-0x000000007599C000-memory.dmp
memory/2196-54-0x0000000006840000-0x000000000685E000-memory.dmp
memory/2196-55-0x0000000007220000-0x00000000072C3000-memory.dmp
memory/2196-43-0x0000000006800000-0x0000000006832000-memory.dmp
memory/2196-16-0x00000000750C0000-0x0000000075870000-memory.dmp
memory/2196-56-0x0000000007BA0000-0x000000000821A000-memory.dmp
memory/2196-58-0x00000000075D0000-0x00000000075DA000-memory.dmp
memory/2196-59-0x00000000077E0000-0x0000000007876000-memory.dmp
memory/4652-70-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-72-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-38-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-37-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-26-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-22-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-68-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-69-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-36-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-21-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-71-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-73-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-78-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4652-79-0x0000000000400000-0x000000000047F000-memory.dmp