Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
23/07/2024, 14:36
General
- Target MalwareBazaar.exe
- Size 1.4MB
- Sample240723-ry4bpsxhre
- SHA256 af0b876a436452a6e998fc622493aaa4553bcc53864d66a6a6d5d476a85902eb
Malware Config
Extracted
-
remcos
-
NewRemoteHost
-
newnex.3utilities.com:8580
-
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-68D53E
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
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).
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\tPbnVzkURocjXA.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\tPbnVzkURocjXA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA1B.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_zoatcjd0.zsc.ps1
tmpAA1B.tmp
memory/2848-4-0x0000000005380000-0x00000000056D4000-memory.dmp
memory/2848-2-0x00000000057F0000-0x0000000005D94000-memory.dmp
memory/2848-3-0x00000000052E0000-0x0000000005372000-memory.dmp
memory/2848-1-0x0000000000730000-0x0000000000892000-memory.dmp
memory/2848-5-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/2848-6-0x00000000057B0000-0x00000000057BA000-memory.dmp
memory/2848-7-0x0000000007FC0000-0x0000000007FDA000-memory.dmp
memory/2848-8-0x0000000006920000-0x000000000692E000-memory.dmp
memory/2848-9-0x0000000006A10000-0x0000000006AF0000-memory.dmp
memory/2848-10-0x0000000006B90000-0x0000000006C2C000-memory.dmp
memory/2848-45-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/2848-0-0x0000000074B5E000-0x0000000074B5F000-memory.dmp
memory/4136-59-0x00000000079E0000-0x000000000805A000-memory.dmp
memory/4136-67-0x00000000076B0000-0x00000000076B8000-memory.dmp
memory/4136-18-0x00000000051F0000-0x0000000005818000-memory.dmp
memory/4136-20-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/4136-22-0x0000000005140000-0x00000000051A6000-memory.dmp
memory/4136-25-0x0000000005820000-0x0000000005886000-memory.dmp
memory/4136-21-0x0000000004FA0000-0x0000000004FC2000-memory.dmp
memory/4136-15-0x0000000004AA0000-0x0000000004AD6000-memory.dmp
memory/4136-70-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/4136-19-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/4136-66-0x00000000076D0000-0x00000000076EA000-memory.dmp
memory/4136-44-0x0000000006100000-0x000000000614C000-memory.dmp
memory/4136-43-0x0000000006070000-0x000000000608E000-memory.dmp
memory/4136-46-0x0000000006650000-0x0000000006682000-memory.dmp
memory/4136-47-0x000000006F3E0000-0x000000006F42C000-memory.dmp
memory/4136-57-0x0000000006690000-0x00000000066AE000-memory.dmp
memory/4136-58-0x0000000007260000-0x0000000007303000-memory.dmp
memory/4136-16-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/4136-60-0x0000000007390000-0x00000000073AA000-memory.dmp
memory/4136-61-0x0000000007410000-0x000000000741A000-memory.dmp
memory/4136-62-0x0000000007610000-0x00000000076A6000-memory.dmp
memory/4136-63-0x0000000007590000-0x00000000075A1000-memory.dmp
memory/4136-64-0x00000000075C0000-0x00000000075CE000-memory.dmp
memory/4136-65-0x00000000075D0000-0x00000000075E4000-memory.dmp
memory/5072-82-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-115-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-75-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-76-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-78-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-79-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-83-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-35-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-81-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-84-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-85-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-87-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-90-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-105-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-106-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-108-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-114-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-80-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-123-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5072-122-0x0000000000400000-0x0000000000482000-memory.dmp