Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240319-en - resource tags
- submitted
04/04/2024, 01:14
General
- Target 16e9bc6afb3e487749ffed54bace65bb58dd5257c66a0baef767d371eda437ce.exe
- Size 884KB
- Sample240404-bltzhaag34
- SHA256 16e9bc6afb3e487749ffed54bace65bb58dd5257c66a0baef767d371eda437ce
Malware Config
Extracted
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remcos
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RemoteHost
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91.92.244.17:2707
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-ZBS4C6
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screenshot_crypt
false
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screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
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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) 17 IoCs
- Detects executables packed with SmartAssembly 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Uses the VBS compiler for execution 1 TTPs
- 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 10 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\16e9bc6afb3e487749ffed54bace65bb58dd5257c66a0baef767d371eda437ce.exe"C:\Users\Admin\AppData\Local\Temp\16e9bc6afb3e487749ffed54bace65bb58dd5257c66a0baef767d371eda437ce.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\16e9bc6afb3e487749ffed54bace65bb58dd5257c66a0baef767d371eda437ce.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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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\xEAqrgXRK.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xEAqrgXRK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC13D.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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 --mojo-platform-channel-handle=2092 --field-trial-handle=2288,i,10301911031503898037,2997280636231771547,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_0sbj2cs5.x5y.ps1
tmpC13D.tmp
memory/1384-56-0x0000000005210000-0x0000000005220000-memory.dmp
memory/1384-26-0x0000000005EF0000-0x0000000005F56000-memory.dmp
memory/1384-58-0x000000007FA30000-0x000000007FA40000-memory.dmp
memory/1384-60-0x00000000078F0000-0x0000000007922000-memory.dmp
memory/1384-82-0x0000000007930000-0x00000000079D3000-memory.dmp
memory/1384-83-0x0000000008060000-0x00000000086DA000-memory.dmp
memory/1384-85-0x0000000007A90000-0x0000000007A9A000-memory.dmp
memory/1384-86-0x0000000007CA0000-0x0000000007D36000-memory.dmp
memory/1384-55-0x0000000006C70000-0x0000000006CBC000-memory.dmp
memory/1384-18-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/1384-91-0x0000000007D40000-0x0000000007D48000-memory.dmp
memory/1384-19-0x0000000005210000-0x0000000005220000-memory.dmp
memory/1384-52-0x0000000006700000-0x000000000671E000-memory.dmp
memory/1384-22-0x0000000005210000-0x0000000005220000-memory.dmp
memory/1384-37-0x00000000060F0000-0x0000000006444000-memory.dmp
memory/1384-25-0x0000000005E80000-0x0000000005EE6000-memory.dmp
memory/1384-98-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/1384-72-0x0000000075590000-0x00000000755DC000-memory.dmp
memory/2612-103-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-54-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-36-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-38-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-102-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-100-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-104-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-99-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-105-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-106-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-107-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-108-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-109-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2612-110-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3632-90-0x0000000007B30000-0x0000000007B4A000-memory.dmp
memory/3632-21-0x0000000002B10000-0x0000000002B20000-memory.dmp
memory/3632-15-0x0000000004F20000-0x0000000004F56000-memory.dmp
memory/3632-61-0x0000000075590000-0x00000000755DC000-memory.dmp
memory/3632-84-0x00000000077F0000-0x000000000780A000-memory.dmp
memory/3632-16-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/3632-17-0x0000000005590000-0x0000000005BB8000-memory.dmp
memory/3632-87-0x00000000079F0000-0x0000000007A01000-memory.dmp
memory/3632-88-0x0000000007A20000-0x0000000007A2E000-memory.dmp
memory/3632-89-0x0000000007A30000-0x0000000007A44000-memory.dmp
memory/3632-57-0x0000000002B10000-0x0000000002B20000-memory.dmp
memory/3632-71-0x0000000007450000-0x000000000746E000-memory.dmp
memory/3632-97-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/3632-20-0x0000000002B10000-0x0000000002B20000-memory.dmp
memory/3632-59-0x000000007FA90000-0x000000007FAA0000-memory.dmp
memory/3632-24-0x0000000005520000-0x0000000005542000-memory.dmp
memory/4560-0-0x00000000004E0000-0x00000000005C4000-memory.dmp
memory/4560-3-0x0000000004FA0000-0x0000000005032000-memory.dmp
memory/4560-2-0x0000000005600000-0x0000000005BA4000-memory.dmp
memory/4560-53-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/4560-1-0x0000000074CE0000-0x0000000075490000-memory.dmp
memory/4560-5-0x0000000005170000-0x000000000517A000-memory.dmp
memory/4560-4-0x0000000004F80000-0x0000000004F90000-memory.dmp
memory/4560-10-0x0000000008A00000-0x0000000008A9C000-memory.dmp
memory/4560-9-0x00000000062F0000-0x00000000063B0000-memory.dmp
memory/4560-8-0x00000000055F0000-0x00000000055FC000-memory.dmp
memory/4560-7-0x00000000055E0000-0x00000000055EA000-memory.dmp
memory/4560-6-0x0000000005330000-0x0000000005344000-memory.dmp