Analysis
- max time kernel
150s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
03/05/2024, 11:29
General
- Target proof of payment.exe
- Size 906KB
- Sample240503-nlqcjafd64
- SHA256 05a341a2577c728e8a994775b17b8c5562539146d78a5de948e3534e1ae1c629
Malware Config
Extracted
-
remcos
-
RemoteHost
-
37.120.235.122:2269
-
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-F9KCYW
-
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).
- Creates scheduled task(s) 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 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"C:\Users\Admin\AppData\Local\Temp\proof of payment.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\NvbYSEq.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\NvbYSEq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3042.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3928 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_sfskm014.kpx.ps1
tmp3042.tmp
memory/1388-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-62-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-66-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-69-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-81-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-80-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-83-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-90-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-61-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-106-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-105-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-97-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-98-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1388-89-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2960-1-0x0000000000E30000-0x0000000000F18000-memory.dmp
memory/2960-28-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/2960-10-0x0000000009770000-0x000000000980C000-memory.dmp
memory/2960-9-0x0000000007170000-0x0000000007230000-memory.dmp
memory/2960-8-0x0000000005AF0000-0x0000000005B06000-memory.dmp
memory/2960-5-0x0000000005960000-0x000000000596A000-memory.dmp
memory/2960-7-0x0000000005AE0000-0x0000000005AEE000-memory.dmp
memory/2960-15-0x00000000747CE000-0x00000000747CF000-memory.dmp
memory/2960-4-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/2960-3-0x00000000058C0000-0x0000000005952000-memory.dmp
memory/2960-2-0x0000000005F90000-0x0000000006534000-memory.dmp
memory/2960-6-0x0000000005AB0000-0x0000000005AC8000-memory.dmp
memory/2960-0-0x00000000747CE000-0x00000000747CF000-memory.dmp
memory/4592-45-0x0000000005F10000-0x0000000005F2E000-memory.dmp
memory/4592-60-0x00000000075A0000-0x0000000007643000-memory.dmp
memory/4592-63-0x0000000007CE0000-0x000000000835A000-memory.dmp
memory/4592-64-0x00000000076A0000-0x00000000076BA000-memory.dmp
memory/4592-65-0x0000000007710000-0x000000000771A000-memory.dmp
memory/4592-59-0x0000000006950000-0x000000000696E000-memory.dmp
memory/4592-67-0x0000000007920000-0x00000000079B6000-memory.dmp
memory/4592-49-0x0000000071EB0000-0x0000000071EFC000-memory.dmp
memory/4592-70-0x00000000078A0000-0x00000000078B1000-memory.dmp
memory/4592-71-0x00000000078D0000-0x00000000078DE000-memory.dmp
memory/4592-72-0x00000000078E0000-0x00000000078F4000-memory.dmp
memory/4592-73-0x00000000079E0000-0x00000000079FA000-memory.dmp
memory/4592-74-0x00000000079C0000-0x00000000079C8000-memory.dmp
memory/4592-78-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/4592-48-0x0000000006970000-0x00000000069A2000-memory.dmp
memory/4592-46-0x0000000006400000-0x000000000644C000-memory.dmp
memory/4592-44-0x0000000005F40000-0x0000000006294000-memory.dmp
memory/4592-29-0x0000000005D40000-0x0000000005DA6000-memory.dmp
memory/4592-27-0x0000000005CD0000-0x0000000005D36000-memory.dmp
memory/4592-26-0x00000000055A0000-0x00000000055C2000-memory.dmp
memory/4592-20-0x0000000005630000-0x0000000005C58000-memory.dmp
memory/4592-19-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/4592-18-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/4592-16-0x0000000002A60000-0x0000000002A96000-memory.dmp