Analysis
- max time kernel
119s - max time network
118s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
- submitted
02/08/2024, 07:58
General
- Target 772f43d94a88006de6ab121c60fa36c0N.exe
- Size 954KB
- Sample240802-jtylnashrl
- SHA256 5516b78ae59be64d9ac3276bcb1dbfc687bb1dab3422cfe7c6a32110b52354b9
Malware Config
Extracted
-
remcos
-
RemoteHost
-
merega.3utilities.com:1692
-
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-WA0I80
-
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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\772f43d94a88006de6ab121c60fa36c0N.exe"C:\Users\Admin\AppData\Local\Temp\772f43d94a88006de6ab121c60fa36c0N.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
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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\772f43d94a88006de6ab121c60fa36c0N.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\LQzJdek.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\LQzJdek" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF08.tmp"2⤵
- System Location Discovery: System Language Discovery
- 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⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_c42xzpd2.jjv.ps1
tmpCF08.tmp
memory/1800-85-0x00000000076D0000-0x00000000076DE000-memory.dmp
memory/1800-70-0x0000000007370000-0x0000000007413000-memory.dmp
memory/1800-80-0x0000000007AE0000-0x000000000815A000-memory.dmp
memory/1800-81-0x00000000074A0000-0x00000000074BA000-memory.dmp
memory/1800-68-0x00000000070F0000-0x000000000710E000-memory.dmp
memory/1800-14-0x0000000002860000-0x0000000002896000-memory.dmp
memory/1800-15-0x0000000005480000-0x0000000005AA8000-memory.dmp
memory/1800-16-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/1800-17-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/1800-84-0x00000000076A0000-0x00000000076B1000-memory.dmp
memory/1800-94-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/1800-22-0x00000000052D0000-0x0000000005336000-memory.dmp
memory/1800-21-0x0000000005160000-0x00000000051C6000-memory.dmp
memory/1800-20-0x00000000050C0000-0x00000000050E2000-memory.dmp
memory/1800-58-0x0000000073070000-0x00000000730BC000-memory.dmp
memory/1800-57-0x0000000007130000-0x0000000007162000-memory.dmp
memory/1800-25-0x0000000005BB0000-0x0000000005F04000-memory.dmp
memory/1876-55-0x0000000006640000-0x000000000665E000-memory.dmp
memory/1876-95-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/1876-88-0x0000000007C80000-0x0000000007C88000-memory.dmp
memory/1876-87-0x0000000007CA0000-0x0000000007CBA000-memory.dmp
memory/1876-86-0x0000000007BA0000-0x0000000007BB4000-memory.dmp
memory/1876-83-0x0000000007BE0000-0x0000000007C76000-memory.dmp
memory/1876-82-0x00000000079E0000-0x00000000079EA000-memory.dmp
memory/1876-26-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/1876-69-0x0000000073070000-0x00000000730BC000-memory.dmp
memory/1876-56-0x0000000006BF0000-0x0000000006C3C000-memory.dmp
memory/1876-18-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/1876-23-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/2140-29-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-115-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-121-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-120-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-114-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-108-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-107-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-103-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-100-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2140-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4636-2-0x0000000005D90000-0x0000000006334000-memory.dmp
memory/4636-35-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/4636-3-0x0000000005880000-0x0000000005912000-memory.dmp
memory/4636-1-0x0000000000D40000-0x0000000000E34000-memory.dmp
memory/4636-5-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/4636-6-0x00000000059C0000-0x00000000059D2000-memory.dmp
memory/4636-7-0x00000000059F0000-0x00000000059FE000-memory.dmp
memory/4636-8-0x0000000006B70000-0x0000000006C30000-memory.dmp
memory/4636-4-0x0000000005840000-0x000000000584A000-memory.dmp
memory/4636-9-0x0000000006E10000-0x0000000006EAC000-memory.dmp
memory/4636-0-0x00000000745AE000-0x00000000745AF000-memory.dmp