Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
17/05/2024, 01:37
General
- Target PO 738900.exe
- Size 1.1MB
- Sample240517-b1tx2sbc41
- SHA256 e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343
Malware Config
Extracted
-
remcos
-
76364
-
103.150.8.12:5689
-
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-FF0K7G
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
Remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- detects Windows exceutables potentially bypassing UAC using eventvwr.exe 18 IoCs
- 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO 738900.exe"C:\Users\Admin\AppData\Local\Temp\PO 738900.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\Roaming\tkoOXvlkbwis.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\tkoOXvlkbwis" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1028.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\PO 738900.exe"C:\Users\Admin\AppData\Local\Temp\PO 738900.exe"2⤵
-
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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 --field-trial-handle=4612,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=1304 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_cndcrx5s.1n5.ps1
tmp1028.tmp
memory/2368-34-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-69-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-70-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-71-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-72-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-73-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-32-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-80-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-79-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-78-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-33-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-39-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-38-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-68-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2368-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/2740-3-0x0000000005C00000-0x00000000061A4000-memory.dmp
memory/2740-40-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/2740-1-0x0000000000A80000-0x0000000000B98000-memory.dmp
memory/2740-2-0x00000000055B0000-0x0000000005642000-memory.dmp
memory/2740-10-0x00000000094F0000-0x000000000958C000-memory.dmp
memory/2740-9-0x0000000006E50000-0x0000000006F0E000-memory.dmp
memory/2740-8-0x0000000005BF0000-0x0000000005C00000-memory.dmp
memory/2740-7-0x0000000005930000-0x000000000594E000-memory.dmp
memory/2740-0-0x0000000074B7E000-0x0000000074B7F000-memory.dmp
memory/2740-6-0x0000000006C20000-0x0000000006D00000-memory.dmp
memory/2740-5-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/2740-4-0x0000000005590000-0x000000000559A000-memory.dmp
memory/4580-42-0x0000000005F70000-0x0000000005FBC000-memory.dmp
memory/4580-56-0x0000000007840000-0x0000000007EBA000-memory.dmp
memory/4580-57-0x0000000007200000-0x000000000721A000-memory.dmp
memory/4580-58-0x0000000007270000-0x000000000727A000-memory.dmp
memory/4580-59-0x0000000007480000-0x0000000007516000-memory.dmp
memory/4580-60-0x0000000007400000-0x0000000007411000-memory.dmp
memory/4580-61-0x0000000007430000-0x000000000743E000-memory.dmp
memory/4580-62-0x0000000007440000-0x0000000007454000-memory.dmp
memory/4580-63-0x0000000007540000-0x000000000755A000-memory.dmp
memory/4580-64-0x0000000007520000-0x0000000007528000-memory.dmp
memory/4580-67-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/4580-55-0x00000000070D0000-0x0000000007173000-memory.dmp
memory/4580-54-0x00000000064E0000-0x00000000064FE000-memory.dmp
memory/4580-43-0x0000000006490000-0x00000000064C2000-memory.dmp
memory/4580-44-0x0000000075400000-0x000000007544C000-memory.dmp
memory/4580-41-0x0000000005ED0000-0x0000000005EEE000-memory.dmp
memory/4580-19-0x0000000004E20000-0x0000000004E42000-memory.dmp
memory/4580-35-0x00000000058C0000-0x0000000005C14000-memory.dmp
memory/4580-22-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/4580-20-0x0000000004ED0000-0x0000000004F36000-memory.dmp
memory/4580-21-0x0000000004F40000-0x0000000004FA6000-memory.dmp
memory/4580-17-0x0000000005190000-0x00000000057B8000-memory.dmp
memory/4580-16-0x0000000074B70000-0x0000000075320000-memory.dmp
memory/4580-15-0x00000000025C0000-0x00000000025F6000-memory.dmp