Analysis
- max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
24/09/2024, 09:20
General
- Target BL-TLN0124796CMACGM.scr
- Size 915KB
- Sample240924-la2kbayfmn
- SHA256 d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a
Malware Config
Extracted
-
remcos
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GeneralWire-Slaves
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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
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copy_folder
Remcos
-
delete_file
false
-
hide_file
false
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hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-TWU43D
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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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.
- Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- 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.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 8 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 12 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 36 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr" /S1⤵
- 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"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
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp950C.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scrC:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr /stext "C:\Users\Admin\AppData\Local\Temp\gqdjsvtuhvldclsnhmhakgaofw"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scrC:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr /stext "C:\Users\Admin\AppData\Local\Temp\ikjbtodnvedqfrgrywtuvtvxolfgd"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scrC:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr /stext "C:\Users\Admin\AppData\Local\Temp\tnwmtgoprmvvpfdvhhgvyypoorxpweow"3⤵
-
-
C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scrC:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr /stext "C:\Users\Admin\AppData\Local\Temp\tnwmtgoprmvvpfdvhhgvyypoorxpweow"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_kut45f3d.jgl.ps1
gqdjsvtuhvldclsnhmhakgaofw
tmp950C.tmp
memory/876-101-0x0000000000400000-0x0000000000424000-memory.dmp
memory/876-103-0x0000000000400000-0x0000000000424000-memory.dmp
memory/876-100-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2320-97-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2320-99-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2320-95-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3100-15-0x00000000026A0000-0x00000000026D6000-memory.dmp
memory/3100-16-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/3100-88-0x0000000007920000-0x0000000007F9A000-memory.dmp
memory/3100-89-0x00000000072E0000-0x00000000072FA000-memory.dmp
memory/3100-18-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/3100-108-0x0000000007520000-0x0000000007534000-memory.dmp
memory/3100-117-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/3100-76-0x0000000074EA0000-0x0000000074EEC000-memory.dmp
memory/3100-110-0x0000000007600000-0x0000000007608000-memory.dmp
memory/3100-26-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/3100-109-0x0000000007620000-0x000000000763A000-memory.dmp
memory/3164-2-0x0000000005AE0000-0x0000000006084000-memory.dmp
memory/3164-1-0x0000000000B10000-0x0000000000BFA000-memory.dmp
memory/3164-5-0x00000000055A0000-0x00000000055AA000-memory.dmp
memory/3164-53-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/3164-3-0x00000000055D0000-0x0000000005662000-memory.dmp
memory/3164-4-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/3164-10-0x0000000009A80000-0x0000000009B1C000-memory.dmp
memory/3164-9-0x0000000007340000-0x0000000007400000-memory.dmp
memory/3164-8-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/3164-7-0x000000007461E000-0x000000007461F000-memory.dmp
memory/3164-6-0x0000000005870000-0x0000000005882000-memory.dmp
memory/3164-0-0x000000007461E000-0x000000007461F000-memory.dmp
memory/3780-87-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-138-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-160-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-159-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-152-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-59-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-151-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-61-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-57-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-143-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-91-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-60-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-144-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-120-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3780-136-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-134-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-133-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-132-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-131-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-130-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-129-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-125-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3780-124-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3780-123-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4224-93-0x0000000006FE0000-0x0000000007076000-memory.dmp
memory/4224-54-0x0000000005A30000-0x0000000005A4E000-memory.dmp
memory/4224-116-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/4224-21-0x0000000004AA0000-0x0000000004AC2000-memory.dmp
memory/4224-24-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/4224-23-0x0000000005420000-0x0000000005486000-memory.dmp
memory/4224-22-0x0000000005300000-0x0000000005366000-memory.dmp
memory/4224-25-0x0000000005490000-0x00000000057E4000-memory.dmp
memory/4224-29-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/4224-62-0x0000000005FF0000-0x0000000006022000-memory.dmp
memory/4224-74-0x0000000006A70000-0x0000000006B13000-memory.dmp
memory/4224-20-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/4224-55-0x0000000005B10000-0x0000000005B5C000-memory.dmp
memory/4224-98-0x0000000006F90000-0x0000000006F9E000-memory.dmp
memory/4224-17-0x0000000004BE0000-0x0000000005208000-memory.dmp
memory/4224-73-0x0000000005FC0000-0x0000000005FDE000-memory.dmp
memory/4224-94-0x0000000006F60000-0x0000000006F71000-memory.dmp
memory/4224-90-0x0000000006DD0000-0x0000000006DDA000-memory.dmp
memory/4224-63-0x0000000074EA0000-0x0000000074EEC000-memory.dmp
memory/4408-96-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4408-107-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4408-102-0x0000000000400000-0x0000000000462000-memory.dmp