Analysis
- max time kernel
148s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
04/07/2024, 16:23
General
- Target Aviso de Pago __Banco Republica.pdf.bat.exe
- Size 919KB
- Sample240704-tvsrxaygnq
- SHA256 6eedc70dbeeb29b5f978d19bde0a32b02c54b9c9699c6a3a97e6f20de816c86d
Malware Config
Extracted
-
remcos
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RemoteHost
-
204.10.160.230:7983
-
audio_folder
MicRecords
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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
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copy_folder
Remcos
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delete_file
false
-
hide_file
false
-
hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
-
keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
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mouse_option
false
-
mutex
Rmc-O7QOC3
-
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 14 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Aviso de Pago __Banco Republica.pdf.bat.exe"C:\Users\Admin\AppData\Local\Temp\Aviso de Pago __Banco Republica.pdf.bat.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\Aviso de Pago __Banco Republica.pdf.bat.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\sFUQBvTDDf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sFUQBvTDDf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF49.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\Aviso de Pago __Banco Republica.pdf.bat.exe"C:\Users\Admin\AppData\Local\Temp\Aviso de Pago __Banco Republica.pdf.bat.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Aviso de Pago __Banco Republica.pdf.bat.exe"C:\Users\Admin\AppData\Local\Temp\Aviso de Pago __Banco Republica.pdf.bat.exe"2⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_pjft552e.aho.psm1
tmpBF49.tmp
memory/3344-57-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-99-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-101-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-102-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-103-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-55-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-52-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-53-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-50-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-42-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-39-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-38-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3344-104-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4224-19-0x0000000005190000-0x00000000057B8000-memory.dmp
memory/4224-89-0x0000000007500000-0x0000000007514000-memory.dmp
memory/4224-98-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4224-91-0x00000000075E0000-0x00000000075E8000-memory.dmp
memory/4224-22-0x0000000004EB0000-0x0000000004ED2000-memory.dmp
memory/4224-86-0x0000000007540000-0x00000000075D6000-memory.dmp
memory/4224-83-0x0000000007930000-0x0000000007FAA000-memory.dmp
memory/4224-20-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4224-82-0x0000000007000000-0x00000000070A3000-memory.dmp
memory/4224-18-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4224-71-0x0000000070BF0000-0x0000000070C3C000-memory.dmp
memory/4224-15-0x00000000049A0000-0x00000000049D6000-memory.dmp
memory/4224-59-0x0000000006020000-0x000000000606C000-memory.dmp
memory/4300-7-0x0000000005570000-0x0000000005578000-memory.dmp
memory/4300-10-0x0000000006940000-0x00000000069DC000-memory.dmp
memory/4300-1-0x0000000000530000-0x0000000000618000-memory.dmp
memory/4300-9-0x00000000067E0000-0x000000000689E000-memory.dmp
memory/4300-8-0x0000000005580000-0x000000000558C000-memory.dmp
memory/4300-2-0x00000000055C0000-0x0000000005B64000-memory.dmp
memory/4300-51-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4300-11-0x000000007440E000-0x000000007440F000-memory.dmp
memory/4300-3-0x00000000050B0000-0x0000000005142000-memory.dmp
memory/4300-4-0x0000000005020000-0x000000000502A000-memory.dmp
memory/4300-16-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4300-0-0x000000007440E000-0x000000007440F000-memory.dmp
memory/4300-5-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4300-6-0x0000000005270000-0x000000000528A000-memory.dmp
memory/4708-60-0x0000000006920000-0x0000000006952000-memory.dmp
memory/4708-85-0x0000000007710000-0x000000000771A000-memory.dmp
memory/4708-87-0x00000000067C0000-0x00000000067D1000-memory.dmp
memory/4708-88-0x00000000078D0000-0x00000000078DE000-memory.dmp
memory/4708-26-0x00000000054B0000-0x0000000005516000-memory.dmp
memory/4708-90-0x00000000079E0000-0x00000000079FA000-memory.dmp
memory/4708-21-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4708-25-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4708-84-0x00000000076A0000-0x00000000076BA000-memory.dmp
memory/4708-97-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4708-24-0x0000000005340000-0x00000000053A6000-memory.dmp
memory/4708-32-0x0000000074400000-0x0000000074BB0000-memory.dmp
memory/4708-72-0x0000000006960000-0x000000000697E000-memory.dmp
memory/4708-61-0x0000000070BF0000-0x0000000070C3C000-memory.dmp
memory/4708-58-0x0000000006360000-0x000000000637E000-memory.dmp
memory/4708-54-0x0000000005DB0000-0x0000000006104000-memory.dmp