Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240704-en - resource tags
- submitted
09/07/2024, 01:22
General
- Target 59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355.exe
- Size 953KB
- Sample240709-brcbms1fke
- SHA256 59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355
Malware Config
Extracted
-
remcos
-
RemoteHost
-
212.162.149.42:7118
-
audio_folder
MicRecords
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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-WYBPPO
-
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 2 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).
- 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 11 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355.exe"C:\Users\Admin\AppData\Local\Temp\59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DCWFNzgQbu.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\DCWFNzgQbu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp15A6.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355.exe"C:\Users\Admin\AppData\Local\Temp\59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355.exe"2⤵
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_ywb01xrl.md1.ps1
tmp15A6.tmp
memory/652-8-0x0000000005990000-0x000000000599C000-memory.dmp
memory/652-5-0x0000000005860000-0x00000000058FC000-memory.dmp
memory/652-6-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/652-7-0x0000000005840000-0x0000000005858000-memory.dmp
memory/652-4-0x00000000055A0000-0x00000000055AA000-memory.dmp
memory/652-9-0x0000000006990000-0x0000000006A4E000-memory.dmp
memory/652-10-0x0000000074F6E000-0x0000000074F6F000-memory.dmp
memory/652-3-0x0000000005600000-0x0000000005692000-memory.dmp
memory/652-16-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/652-2-0x0000000005BB0000-0x0000000006154000-memory.dmp
memory/652-0-0x0000000074F6E000-0x0000000074F6F000-memory.dmp
memory/652-53-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/652-1-0x0000000000AB0000-0x0000000000BA2000-memory.dmp
memory/3992-87-0x00000000075B0000-0x00000000075C1000-memory.dmp
memory/3992-72-0x000000006FA60000-0x000000006FAAC000-memory.dmp
memory/3992-23-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/3992-26-0x0000000005A80000-0x0000000005AE6000-memory.dmp
memory/3992-25-0x00000000059A0000-0x0000000005A06000-memory.dmp
memory/3992-42-0x0000000005AF0000-0x0000000005E44000-memory.dmp
memory/3992-15-0x0000000004AB0000-0x0000000004AE6000-memory.dmp
memory/3992-88-0x00000000075E0000-0x00000000075EE000-memory.dmp
memory/3992-18-0x00000000051D0000-0x00000000057F8000-memory.dmp
memory/3992-86-0x0000000007630000-0x00000000076C6000-memory.dmp
memory/3992-98-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/3992-84-0x00000000073B0000-0x00000000073CA000-memory.dmp
memory/3992-83-0x0000000007A00000-0x000000000807A000-memory.dmp
memory/3992-19-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/3992-17-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/3992-24-0x0000000005900000-0x0000000005922000-memory.dmp
memory/5468-100-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-104-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-57-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-59-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-103-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-102-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-55-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-105-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-56-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-101-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-107-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-48-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-49-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-50-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-46-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5468-106-0x0000000000400000-0x000000000047F000-memory.dmp
memory/5772-52-0x0000000005CA0000-0x0000000005CBE000-memory.dmp
memory/5772-91-0x0000000007300000-0x0000000007308000-memory.dmp
memory/5772-90-0x0000000007320000-0x000000000733A000-memory.dmp
memory/5772-89-0x0000000007220000-0x0000000007234000-memory.dmp
memory/5772-85-0x0000000007050000-0x000000000705A000-memory.dmp
memory/5772-99-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/5772-82-0x0000000006CA0000-0x0000000006D43000-memory.dmp
memory/5772-60-0x0000000006C40000-0x0000000006C72000-memory.dmp
memory/5772-71-0x0000000006C80000-0x0000000006C9E000-memory.dmp
memory/5772-61-0x000000006FA60000-0x000000006FAAC000-memory.dmp
memory/5772-54-0x0000000005CC0000-0x0000000005D0C000-memory.dmp
memory/5772-22-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/5772-45-0x0000000074F60000-0x0000000075710000-memory.dmp
memory/5772-20-0x0000000074F60000-0x0000000075710000-memory.dmp