Analysis
- max time kernel
147s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
23/09/2024, 14:04
General
- Target BL-TLN0124796CMACGM.scr.exe
- Size 915KB
- Sample240923-rc975ayarj
- SHA256 d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a
Malware Config
Extracted
-
remcos
-
GeneralWire-Slaves
-
milliondollar23.duckdns.org:3984
-
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-TWU43D
-
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 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).
- System Location Discovery: System Language Discovery 1 TTPs 5 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 10 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 27 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\Local\Temp\BL-TLN0124796CMACGM.scr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- 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\LdtceRaylJq.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\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDA91.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_qalbtuun.nrb.ps1
tmpDA91.tmp
memory/956-61-0x000000006F730000-0x000000006F77C000-memory.dmp
memory/956-16-0x0000000005160000-0x0000000005788000-memory.dmp
memory/956-89-0x00000000072A0000-0x00000000072B1000-memory.dmp
memory/956-88-0x0000000007320000-0x00000000073B6000-memory.dmp
memory/956-84-0x00000000076F0000-0x0000000007D6A000-memory.dmp
memory/956-72-0x0000000006F50000-0x0000000006FF3000-memory.dmp
memory/956-60-0x0000000006F00000-0x0000000006F32000-memory.dmp
memory/956-93-0x00000000073C0000-0x00000000073C8000-memory.dmp
memory/956-15-0x0000000002460000-0x0000000002496000-memory.dmp
memory/956-90-0x00000000072D0000-0x00000000072DE000-memory.dmp
memory/956-17-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/956-18-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/956-19-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/956-71-0x0000000006EE0000-0x0000000006EFE000-memory.dmp
memory/956-96-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/956-47-0x0000000005E20000-0x0000000005E6C000-memory.dmp
memory/956-46-0x0000000005D80000-0x0000000005D9E000-memory.dmp
memory/1272-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-103-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-133-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-132-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-125-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-124-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-122-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-53-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-121-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-50-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-119-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-57-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-59-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-118-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-117-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-116-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-110-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-111-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1272-104-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2288-0-0x00000000747CE000-0x00000000747CF000-memory.dmp
memory/2288-55-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/2288-6-0x0000000006EF0000-0x0000000006F02000-memory.dmp
memory/2288-5-0x0000000005580000-0x000000000558A000-memory.dmp
memory/2288-4-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/2288-10-0x0000000009A70000-0x0000000009B0C000-memory.dmp
memory/2288-9-0x0000000007390000-0x0000000007450000-memory.dmp
memory/2288-3-0x00000000055C0000-0x0000000005652000-memory.dmp
memory/2288-8-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/2288-2-0x0000000005AD0000-0x0000000006074000-memory.dmp
memory/2288-1-0x0000000000AE0000-0x0000000000BCA000-memory.dmp
memory/2288-7-0x00000000747CE000-0x00000000747CF000-memory.dmp
memory/3948-34-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/3948-73-0x000000006F730000-0x000000006F77C000-memory.dmp
memory/3948-97-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/3948-92-0x0000000007990000-0x00000000079AA000-memory.dmp
memory/3948-91-0x0000000007890000-0x00000000078A4000-memory.dmp
memory/3948-22-0x0000000005AD0000-0x0000000005B36000-memory.dmp
memory/3948-83-0x0000000007650000-0x000000000766A000-memory.dmp
memory/3948-87-0x00000000076C0000-0x00000000076CA000-memory.dmp
memory/3948-29-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/3948-33-0x0000000005E00000-0x0000000006154000-memory.dmp
memory/3948-21-0x0000000005410000-0x0000000005476000-memory.dmp
memory/3948-35-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/3948-20-0x0000000005370000-0x0000000005392000-memory.dmp