Analysis
- max time kernel
156s - max time network
162s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
04/06/2024, 01:36
General
- Target 864eee8f2c1ba67d057f14f565ed6726068928d977aa7c7cddf8f52b28119e3b.exe
- Size 1.4MB
- Sample240604-b1n2sshe42
- SHA256 864eee8f2c1ba67d057f14f565ed6726068928d977aa7c7cddf8f52b28119e3b
Malware Config
Extracted
-
remcos
-
RemoteHost
-
193.222.96.75:8823
-
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-TNRDZX
-
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.
- Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 16 IoCs
- Drops startup file 1 IoCs
- Executes dropped EXE 2 IoCs
- Suspicious use of FindShellTrayWindow 6 IoCs
- Suspicious use of SendNotifyMessage 6 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\864eee8f2c1ba67d057f14f565ed6726068928d977aa7c7cddf8f52b28119e3b.exe"C:\Users\Admin\AppData\Local\Temp\864eee8f2c1ba67d057f14f565ed6726068928d977aa7c7cddf8f52b28119e3b.exe"1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\buncal\ultraradical.exe"C:\Users\Admin\AppData\Local\Temp\864eee8f2c1ba67d057f14f565ed6726068928d977aa7c7cddf8f52b28119e3b.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\buncal\ultraradical.exe"C:\Users\Admin\AppData\Local\buncal\ultraradical.exe"3⤵
- Executes dropped EXE
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
-
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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 --mojo-platform-channel-handle=1404 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
aut29CA.tmp
aut2A39.tmp
avenses
soliloquised
memory/1464-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-59-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-45-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-46-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-80-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-53-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-54-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-60-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-66-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-67-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-72-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-73-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1464-78-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4580-10-0x0000000000BA0000-0x0000000000BA4000-memory.dmp